LOVE this quote from mass effect 2. Gunnery Chief: This, recruits, is a 20-kilo ferrous slug. Feel the weight. Every five seconds, the main gun of an Everest-class dreadnought accelerates one to 1.3 percent of light speed. It impacts with the force of a 38-kilotomb bomb. That is three times the yield of the city buster dropped on Hiroshima back on Earth. That means Sir Isaac Newton is the deadliest son-of-a-bitch in space. Now! Serviceman Burnside! What is Newton's First Law? First Recruit: Sir! A object in motion stays in motion, sir! Gunnery Chief: No credit for partial answers, maggot! First Recruit: Sir! Unless acted on by an outside force, sir! Gunnery Chief: Damn straight! I dare to assume you ignorant jackasses know that space is empty. Once you fire this husk of metal, it keeps going till it hits something. That can be a ship, or the planet behind that ship. It might go off into deep space and hit somebody else in ten thousand years. If you pull the trigger on this, you're ruining someone's day, somewhere and sometime. That is why you check your damn targets! That is why you wait for the computer to give you a damn firing solution! That is why, Serviceman Chung, we do not "eyeball it!" This is a weapon of mass destruction. You are not a cowboy shooting from the hip! Second Recruit: Sir, yes sir!
He jumped out of a balloon that was relatively stationary. He wasn't even technically in space. A space station would be travelling at several thousand miles per hour in order to stay in orbit. It is the massive horizontal speed that creates all the friction problems for re-entry.
Even if stationary (the reason Baumgartner didn´t die is because he DIDN´T jump from space...), accelerating at approximately 10m/s/s means you are going to hit massive speeds just falling towards earth from a high enough altitude...with no athmosphere to slow you down, you keep accelerating...and then reentry happens. For Example, falling for only 100 seconds would accelerate you to 980m/s, about three times the speed of sound. in less then two minutes. And you keep accelerating until you hit athmosphere. Fall for twice that and you are already at Mach 6. Now consider that the ISS only orbits around 400km above earths surface and how long you would fall, it´s still technically in the athmosphere (it has to constantly reaccelerate to not fall down). Falling from the edge of the Exosphere (10000km)...you´d accelerate to speeds easily exceeding the safe recomended dosage of athmospheric friction. It is speed that is generating the problem...but even with no orbital velocity (falling straight down) you´d accelerate fast enough to burn up on reentry. So in short, don´t worry about "it´s not the fall that kills you, it´s the landing"...it will be the fall that kills you....you will never hit the ground XD
For topic #3, the whole time you were discussing Newton's law, I kept recalling a moment in Mass Effect 2 where there is a general drilling two of his soldiers about the exact same thing when you arrive at the dock on the Citadel and it is hilarious.
+Christine Shane NOD is right,it was a ''Sarge'' not a general.Preatty sure that a general's dutys dont include trainning rookie soldiers on a casual bases.
My apologies for my ignorance on the military subject. I just thought it was funny, guys. No big deal. But I learned something new. Don't ever get Sargents and Generals mixed up. You think with all of the military in my family, I would know this....
Christine Shane Dont worry about it.Its just that from a sergeant up to a general there are a shitload of ranks in betwin.Usually a sarge is in charge of a small squad or platoon of soldiers while a general is in charge of a full contigent or even a complete branch of the military forces of a nation.In sume,there a ton of sarges but only a handfull of generals (at least in small countrys,US has got too much armed forces so probly they have a tad more then a ''handfull'' of them.)
You might "hear" some part of explosions since it's a lot of stuff rushing at you and buffeting your suit. I think the "muffled" effect is implying you're still hearing vibrations as they pass through whatever surface you're on and then vibrating the air inside your suit.
+Kenazzle This is something a lot of people dont consider and I think this is true. If youre in contact with the surface of a ship that has an explosion you definitely would feel and hear it to some degree. It would only not happen if you were not in direct contact
+Kenazzle If the explosion is sufficiently big, it will send out a shockwave that will push matter around it, so yes, indeed, you will hear the explosion as the shockwave hits you.
Not really, since they are pressure waves. Shock waves are also present in space, which is why some supernovae remnants have symmetrical, defined shapes. Shockwaves push any medium they come in contact with in the direction of their movement. So they can push air out, but don't need air to travel.
Jayden Winter Think of it as energy that's being given to whatever the wave comes in contact with, that energy leads to movement of the medium. It could be air, water, anything.
Mass Effect did indeed do a good job when it came to space, in my opinion, they perfectly mixed science fiction and facts, keeping a few things realistic and other stuff way out in the land of sci-fi. I also liked how they tried to explain the sci-fi elements in the game with what we know about physics and everything space related. Not that they tried to say "this can be real" but in the way that it feels like possible tech for the player. They should get some props for doing that, in my opinion.
+lazerbeams2 I don't doubt it, but just because it's done doesn't mean it's correct. Prime examples of recent memory, The Martian and The Force Awakens, The Martian goes to depths explaining the mechanics and making it believable that this could happen someday, thus is Sci Fi, TFA goes to efforts of having cool things without alot of effort to make it believable, it's goal is to tell an interesting story that just happens in space, thus is Space Fantasy. Both cool in their own rights just different story types.
Alexander Dumas On the other hand, it's a good list for comparisons to point out the current problem with string "theory"; "Let me tell you about Water Theory! Basically, everything in the universe is made of tiny wisps of water!" "Okay, interesting thought, where's your science?" "Uh... Sorry, this call cannot be completed as dialed... BEEP..."
Always loved the silent (aside from the sparingly used musical notes at key moments) spacewalks in the show Firefly. It's very tense, dramatic and makes you hold your breath even when nothing is happening. In other media, making explosions audible in space is done for effect but it's so standard and commonly used that it ends up having no impact. Seeing and not hearing an explosion ends up having much more impact due to the scarcity of the effect. Another thing media usually gets wrong about space is ships meeting on a 2D plane like naval ships on the water. If two ships met in space they would typically meet at awkward angles to each other and there would be no real reason to align themselves unless they were docking.
I thought it was clever in Serenity when they moved the battle into the atmosphere so they could keep to the "space is silent" rules they show had stuck to and still give us loud explosions.
"Seeing and not hearing an explosion ends up having much more impact due to the scarcity of the effect." The cleaving of Snoke's flagship with a light speed jump in The Last Jedi comes to mind. The dead silence in that brief moment really drove home the sacrifice that was made to ensure that the remainder of the Resistance could get to the planet in relative safety. At least, that was before we return to the noisy ship that was surely depressurized, but we can wave that off with individual forcefield generators for use in such an event.
my biggest pet peeve with space in games/movies is how they act like flying a space craft is like flying an airplane. when you turn, you just turn the wheen and you make this arc motion. that's not how it works. turning itself requires that you generate torque via some sort of motor. then it's just vector arithetic to translate your velocity vector to a new one in the direction you desire. kerbal space program is really good at illustrating this.
Yeah. But if you turn Rcs in Ksp on... Then you also will have that happen that happens in 'normal' space games... Your momentum is being controlled by small boosters. F. E. In empyrion galactic survival, in order for your Ship to have any maneuvering abilities you have to build thrusters on any side of the ship.
Actually, The one thing that you *can* hear in space is explosions- they have their own medium (more precisely, they are their own medium.) Curiously enough explosions in space don't sound like explosions (the low-ish "boom" sound,) but are very high pitched (sue to lack of resistance in the way of the blast wave) so, in fact, if that pitch is too high, maybe you can't hear it after all. Are you confused yet?
+Vladimirs Kacs You would only be able to hear an explosion in space for the amount of time it takes for the gasses produced by the explosion to dissapate beyond the ability to conduct the energy of the sound waves OR the amount of time required to freeze the gas (whichever comes first)
+Kyle Duncan Dissipation will (almost) always come first. Nothing really freezes in space, in fact most things capable of doing so boil (most famously water, in a process known as "vacuum drying"). That being said, what allows you to hear an explosion is the air in your suit/ship. The amount of gas produced by the explosion matters very little, compared to how hard the blast wave hits the outside of your ship. Indeed, the "explosion" can consist entirely of solid mass¹ and you'd still hear it if any fragments hit you ship. ---- (¹) Hypothetically you could keep charged fragments close together with an electro-magnet, then turn it off, producing a completely gas-free, and *reusable* explosive device. Chemical explosives are, for the moment, orders of magnitude cheaper though.
Chemical explosives create their blast and/or shock waves by the sudden generation and expansion of gas (a solid block of explosive suddenly turns into a cloud of smoke). A nuclear device, on the other hand, creates a really intense radiation pulse. Now, if said pulse was generated within the atmosphere, the radiation compresses the surrounding air so quickly that the air becomes incandescent plasma hotter than the Sun. Thus the fireball and blast wave of a typical nuclear bomb. In space, that's not so much the case and the radiation has to slam against the target and try to compress/heat up the surface of the ship's hull.
I really thought the scene in Mass Effect 2 where Shepard's body was flung out into space and hurtled towards the planet below was MORE haunting and interesting because of the silence and the burning up upon re-entry. Explosion sound effects in space are cool and all, but nothing is cooler and more otherworldly than the reality of space.
I've always found the silent space explosions, with the only sound being a person's breathing inside their spacesuit, far more intense than actually hearing the explosion. It's just so brilliantly surreal.
Space is so cool, I love reading about things like black holes, neutron stars and pulsars, quasars and massive galaxies, and bigger super clusters of galaxies. The vastness of space is so mind bogglingly huge I couldn't begin to fathom it's immensity.
Also I have a question for anyone who cares to answer, when we drop an atom bomb on earth I know it's the radiation like x rays and gamma rays that heat the atmosphere to pretty much a boil, and that the expanding heat will make shock waves with the air and such (I think I'm by no means an expert) , but if you were to set a nuke off in space with nothing but you around it wouldn't it have a small explosion (I mean like a expanding fireball/bright light) from the detonation process and just spew out radiation without the Big Bang and fire being that there's nothing to collide with or would there still be a massive explosion/fireball/blinding light?
Nukes are set off by conventional explosions, which would give a regular explosion. Then the fusion/fission will start, probably with a lot of light and other radiation. Only the material of the bomb itself will be there to create a cloud of hot plasma. (note: atmosphere can't boil. only liquids can) The cloud will of course still be mushroom-shaped. :P
while most of these points are true the shape would not be a mushroom cloud if detonated in vacuum. This is because the mushroom cloud is produced by the bomb's heat and shock waves interacting with the surrounding air mass. The exact shape of the detonation in vacuum would actually be far more chaotic as even small symmetries in the bomb would become more and more prominent as the outflow expanded outwards towards infinity (as there would be no air resistance to slow it down. Now most of what we call space isn't technically a true vacuum at least as long as you are in our galaxy. In the vicinity of the solar system the sun's outflows of low density plasma carried along by its magnetic field would perturb the spread of the ionized bomb material. And on a larger scale, even if you were in the interstellar medium away from any stars the blast would still experience the effects of the galactic magnetic field produced by the Milky Way galaxy as a whole as it spread out. (while negligible on earth compared to the Earth's and Sun's magnetosphere it is significant enough to have an effect in their absence).
Not that it's a bad thing, I do too, but it's the idea that there's two men and only one woman, so when you're watching the video the woman is instantly the most attractive thing you've seen all day... which is probably why a lot of their videos sandwich Jane into the middle of the countdown in between Andy and ... that other guy, look sorry I don't remember your name as much as Jane or Andy. Course, in all reality Jane IS the most attractive woman on earth so I guess my theory might be wrong.
To be fair about the Dead Space "muffled noises" bit, it could be that the sound vibrations are traveling through the floor you're standing on and through your suit.
Wait, if he hit something with a hammer in space, wouldn't he at least hear it somewhat due to the vibrations traveling through his glove into his space suit?
George-Douglas Price If you hit it harder than humanly possible then yes. But remember that the vibrations will dissipate and this happens long before the vibrations would reach the eardrum
+TheBoyCalledSam I will give you that. You probably wouldn't be able to feel the vibrations from a hammer, or at least not know you were feeling it. However, and explosion on the surface you are standing on would definitely be felt.
Thereis one pet peeve I have with almost all movies (except for 1 movie, forgot its name but it's awesome) and games is that you don't immediately freeze in space, nor do you explode but if you hold your breath you die almost instantly when exposed to a vacuum. It's like extreme diving sickness that ruptures your blood vessels.
Event Horizon has a good portrayal of being in space without a suit. A guy goes through an airlock and starts bleeding from his orifices(like the eyes), and Lawrence Fishbourne jumps out to save him, telling him to blow the air out of his lungs to survive. The he gets saved and lives, for a while I think. Then space evil kills him I think.
No, yoi wouldn't freeze and explode. You would first swell, but your fluids wouldn't expand enough nor with enough speed to cause an explosion, then, you would boil, your body will still produce and store heat without having matter to which dissipate said heat, if you add the low pressure enviroment to that heat voila, you have a boiling human. So, no, you wouldn't freeze and explode.
+Larry Lewinsohn As far as I know that's not actually correct. Most liquids would evaporate and both, the pressure from the circulatory system and bubbles created by the evaporation, would keep the blood from boiling. That's according to an article by Geoffrey A. Landis and a few other sources.
Larry Lewinsohn I never said you'd freeze and explode. You wouldn't die from freezing. You'd almost instantly die from having gaseous bubbles rupturing your blood vessels. Kind of like instantly hemorrhaging internally.
Halo 4 had a pretty cool way of simulating space. Sure, it was kinda like Dead Space's under water sound at points, but you "heard" the rifle firing though the recoil into your shoulder, and your footsteps. Some ground based explosions seemed to send soundwaves though the hull into your feet. So it felt awesome, even though the realism could be blown away for various reasons on the battlefield.
+Daniel rogers nah, you are your own observer. I stopped feeling sorry for Shroedinger's cat once I worked that out. Cats like boxes, but maybe not as much when they contain uncertain death.
You wouldn't even be able to scream. End up in space without a helmet, and the air would be sucked out of your lungs until they get crushed and schrivel into a lump of cells ...
When you think of it, we've been further and seen a lot more in space than we did in our oceans. From that point of view, they are the last frontier. XD
Yay science! I really appreciated those little details in the Mass Effect series where you could really tell that they had actually bothered to look into that whole space thing the setting was in.
you can hear explosions in space, if your close enough to the explosion. it creates its own pressure wave as the gases expand. That will vibrate the molecules in your body and you will be able to hear the effect thru bone conduction.
Are you dum dum? There are no gases in space. If the gases don't hit your body nothing will cause vibrations in your body. Pressure waves travel through matter. No matter = no pressure wave. For the dispersing gasses to hit your body you'd have to be withing pretty much death proximity and your body would probably shatter from the acceleration. So no. No explosions in space, and much less like the ones depicted in the games they criticize.
+TheDrB0B You can't accuse someone of being dumb when you say "There are no gases in space." Really? So what are nebulas, in your opinion? Seeing as science is "dum dum" with their description of them.
Macephtopheles I want to believe that you're trying to be a troll, because if you aren't, its a sad thing that you are suggesting that there are nebulae (not "nebulas" btw) in the depictions discussed in the video.
***** Nebulas and nebulae are both used. It's purely down to personal preference which people use. And what has what is shown in the video got to do with anything I just typed? You said "There are no gases in space" while calling someone else "dum dum" when gases are present in space. I questioned you on that, not what was in the video. And, having implied they're dumb with your first response, you're now trying to insult me by calling me a troll and implying I'm pathetic? You're on a 100% insult streak with your input so far. "People in glass houses..." and all that. Also, seeing as you tried to correct me unnecessarily, *it's a sad thing...
Actually, the reason things heat up upon entry in to the atmosphere is not because of friction. The object moves fast enough that the air cannot move out of the way which cause compression of the air in to a shockwave below the object. It's this process that causes heat build up, not friction at all.
Tom Lacey its still technically friction if it builds up heat. if your body and the air cannot move out of the way that is your mass vs Air rubbing together and there is friction in that
Tom Lacey If you want to be extra special technical about it, *some* heat is generated by air friction during re-entry... It's just not meaningful because the air compression's heat is the completely dominant effect.
Technically, space isn't any temperature. There isn't anything in space to be cold/hot. (He says not really knowing 100% if he's right. But fuck it, it's the internet.)
Actually, space has a temperature, because there are a few hydrogen molecules even in a vacuum. Although it is less than one hydrogen atom per cubic meter, it is enough to be able to say space has a temperature since temperature only needs a single atom because the speed of the atom is what determines the temperature.
There is an insignificant amount of stuff which is just enough to give it some temperature, and it's impossible to not have a temperature. Temperature is essentially just a measurement of how much heat there is, even if there's no heat there would still be a measurement to represent that (i.e. absolute zero).
popnomatron Well, it's not impossible to not have temperature. It's the measure of the energy the molecules of something has. If it's empty then it doesn't have a temperature. The various particles IN space have a temperature- but "space" by definition has nothing in it (so no temperature) c: Getting rid of factors like pressure, radiation, and others - You could survive in space for a _very_ long time (as is commonly thought) because there's no medium for heat to transfer out of your body from. I mean you RADIATE heat- but you aren't a radiator so that's only at a _very_ slow speed.
Actually, you guys got it wrong about Dead Space, and you can even see why in that short clip you guys showed. The sounds Issac and thus the player hears? They travel through his suit. You actually NOT stand on a surface and just float still in the 'air', and the only sound you hear is Clark breathing and the electronics of the suit. Sorry to be a nit-picker, but it rather annoyed me since the 'good' example you pointed at (ME2) actually did the same freaking thing, but for only about twenty seconds and forgot that Shepard's feet are actually physical things touching other physical things sound can travel through.
the only sound you would hear is that generated by the suit, you wouldn't hear the crates smashing and necromorphs jumping, growling and shooting at you.
Jeffery Sparks Their suits are insulated with many soft layers, so that's probably the reason. If you'd use a heavy drill or something that causes a lot of vibrations, you would probably be able to hear/feel it through the suit.
Kim Stennabb Caesar But you couldnt. Sound needs a medium such as air to exist. Since theres no air in space there is no sound, no matter the vibration
WouldYouKindlyFuckOff Well, string theory isn's just about "space just might be strings", but rather the idea that the atoms (or, well, really, the pieces that make up the pieces that make up atoms) gain mass because they're somehow composed of tiny strings. Like, if space was strings (which goes back to space still being a bunch of nothing, thus, not that many strings), so would everything else.
the greatest contribution to re-entry heating is not friction but shock heating due to the spacecraft compressing the air in front of it. Great video though ;)
Space is not "very, very cold" unless you are in shadow. In direct sunlight space is actually very very hot-like thousands of degrees hot. It would be very easy to hide in a solar wind jet-stream...or just about anywhere near a star. I am greatly disappointed you didn't include Tachyon: The Fringe and it near perfect representation of space flight.
Nither one of your comments contradict the fact I was pointing out which was: It would be very easy to hide in a solar wind jet-stream...or just about anywhere near a star. And By the way, photons from the sun will hit an object and the hotter the object will become, therefore hot if you are there to measure it.
It would not be easy to hide, as your ship would reflect the radiation like a speck of dust in a laser beam. And about the cold, the few atoms you find in space are technically very cold, but since there are so few it is mostly a heat-insulating vacuum where transfer only happens through radiation.
NO space is NOT cold. Space is a Vaccum. Depending on where you are depends on the heat. If you're behind a planet sure it's cold, but if you're in front of a planet facing the sun, it can be fairly warm, depending.
Space has no heat, but neither does it have conductance. Therefore, radiation is the only way to either gain or lose heat. If you are in the path of solar radiation, you gain heat. In any case, you are losing heat in all directions unless insulated. But you don't lose heat at the same rate as, say, when you touch liquid Nitrogen. LN2 will cool things through conductance, radiation, and evaporation. This is way faster than heat radiation alone. Vacuums are so resistant to heat transfer that they are one of the most essential aspects of thermal storage methods. A steel tube inside a larger steel tube with a vacuum between them will allow the inner tube to hold a liquid at temperature longer than almost any other passive method. Therefore, despite the fact that space has practically no heat, it is also not "cold" in the same way as we think of antarctic wind.
Heat is a measure of the average speed of which the atoms move in relation to each other, and therefore cold does not really exist, it is basically a word we use when the atoms in our skin is being slowed down by whatever our skin touches. And since space is made out of nothing, meaning no atoms, there is no heat (or cold) in space..
Well there are atoms in space but they're few and few between, relatively speaking. There is another way to get rid of heat in space, you transfer the heat into some matter and throw it out.
I just think of the Apollo "barbecue roll" so that the spacecraft is heated evenly. Calling space cold is like saying your thermos keeps stuff cold because the vacuum in the shell of the flask is cold.
Most of the heat generated from entering into the atmosphere is due to compression not friction. You are going so fast that the air in front of you can't get out of the way fast enough, creating a super dense portion of air that gets superheated due to Charle's Law (temperature and density are inversely proportional, decreasing one increases the other and vice versa).
I love when they break this "disscusion with the viewer" with an actual discussion with themselves back stage, its kinda refreshing having someone else talking in the background
An astronaut would hear something when he's banging with a hammer. The vibrations of the impact would travel up his arm and he'd hear a thud as it reaches his eardrum. Also, what exactly is wrong with the alarm in Adrift? If I were asked to design a suit that warns the astronaut when the oxygen levels are running low, where do you think I would put the alarm?
Unless the astronaut had his or her helmet pressed against the metal being struck by the hammer, the sound would not travel up the astronaut. The vibration from the impact might, but it would not translate as sound to the ears.
+Dennis Francis I think they might actually. I remember seeing footage in which an astonaut performed repairs during a space walk and throughout this footage some of the vibrations made by their tools registered through the helmet mic positioned to capture their vocals for communication. So the vibrations were sufficient to propogate up their suit to their helmet and then propogate through the air in their helmet to the mic.
All sound is is vibrations. That vibration travelling through your arm and suit to your ear is sound. It's the same reason astronauts whose communications have failed can still communicate by pressing their helmets to each other and speaking.
Technically, you could go out in space in just your underwear and live, even though it's cold, since there's nothing in space to transfer heat with. Your skin is also able to expand enough to handle the difference in pressure, and your blood wouldn't boil since the inside of your body is indeed still pressurized. So you'd be fine. At least until the oxygen deprivation kills you.
A couple thoughts on the silence: Sound needs a medium, for an explosion that medium would be the gas of the blast wave, so you would hear any explosion that you could feel. That astronaut interviewed seemed to have forgotten his headset is US Air Force issue hearing protection, so yes, he can't hear his hammer, he would with the same headset be able to fly an A-10 and only barely be able to hear either it's jet engines or it's 30mm rotary cannon firing, and thus no, he would not be able to hear the sounds of his suit machinery as assumed.
"I brought you here to talk about Mass Effect 2, basically, and now you've started watching and you can't stop meeee" okay but that would basically be me as a youtuber
Actually.... Lockout got it right. The station was not in a true orbit. It was being held above a stationary point relatively close to Earth. It looks like somewhere between 100 to 200 miles above the surface. It uses it's engines constantly to maintain that. Which is part of the plotline. So anything dropping from it would be at zero velocity relative to any point on earth. Now as the two dropping would be getting closer, their rotational speed would increase, but not by any significant degree. At least not before they started hitting atmo and started slowing down. Remember, Space Ship 1 drops from 70 miles with no heat shields at all. They are talking about sending it up to 100 miles up. So Lockout was a stretch, but not a huge one like you make it out to be.
this video is ancient now but i really love the bit in dead space 2 where you jump out the space station's window to float about and re-align some solar panels. it's a fairly low-intensity section but there's something about just floating out there, seeing all the stars and the surface of saturn off in the distance, and isaac's breathing that just isolates you really well.
Common misconception in number 4, the friction isn't actually what causes the majority of the heat, it's the compression of the air if front of the craft. The speed on entry is high enough that the air can't get out of the way fast enough, so it's rapidly compressed causing it's temperature to shoot up.
+Samuel Higginbottom You're partially right and partially wrong. It is air friction that causes heat and also the gasses (appearing in front of a body) compressing cause heat.
Skull Gun Air friction plays a very small role in the heat generation. Its 95% about the air compression, which heats up the air molecules to a very high degree. Friction plays basically no role in that. Read up on NASA's publications about that. Or just follow Elon Musk, he said the same thing recently on Twitter.
You actually could parachute to the ground from low orbit, as the 'burning up' affect seen in asteroids and renegade satellites only occurs because insane buildups of speed do to lack of resistance in space contrast rather violently with the sudden friction of the atmosphere, speeds witch can't be attained simply by falling from a space shuttle. It's like the difference between dropping a rock to the ground and firing it out of a rail gun.
I think Elite Dangerous would be my favorite because of the scale, one to one copy of our galaxy. Stations revolve around planets and planets revolving around stars with accurate speed, On top of that the size of the planet have very realistic gravity and how it effects your ship.
The muffled sound makes perfect sense when you consider you're making contact with the surface you're walking on, which is making contact with items that you're knocking around... so there is a path for the sound waves to travel from the vibrating objects to your ear drums.
8:36 maybe we should give planet spaceballs a portal gun and they would finally get all the air from planet druidia, it would just take a while, they could make and entirely compressed room with not a single bit of oxygen, fill it to the brim, close that specific portal and use it, and when they run out of air just fill it up again
I loved the mass effect series, haven't played it in a while though so I forgotten about the codex entries- and how much I loved listening to them all and actually learning. Having them narrated, or whatever, was a really good feature. I hate reading through walls of text. The voice was perfect. LOVED CODEX ENTRIES
(3:15) The "coldness" of space is arguable. Much as sound requires air or water to propagate, heat transfer is much more efficient in a fluid medium, which allows heat transfer by convection. You also need contact with matter for conductive heat transfer. An object floating in space can only get rid of heat by radiation, which is relatively slow. In space, getting rid of heat can be harder than taking it in, especially if there's a sun shining on you.
well if you're in space and you're walking on something the vibrations can propagate through that material to you. also explosions tend to release lots of gas, so the muffled sounds are quite plausible.
Fun fact. The friction from air resistance during reentry does not actually create the heat. It's the compression of the gas in front of the craft that creates it.
You forgot to mention Mass Effect's "If you shoot and miss, you're going to have, at some point in space and time, ruined someone, somewhere's day" quote. (Or however it goes) under the subtitle of Newtonian physics.
Jordan McDonald But the moon's atmosphere and pressure is so low that it essentially is negligible under any practical circumstances. That's why most people don't know it has an atmosphere.
Lee Jones The moon does not have enough mass to support a thicker atmosphere, gasses will get pulled away from it towards other celestial bodies. So basically, no, the pressure would not equalize.
Kim Stennabb Caesar The escape velocity of the moon is 2400 m/s or about 5400 mph. Given that this is ~5 times faster than a gas moves at room temperature, I think it would form into an atmosphere, and would take some time on a geological time scale for solar winds to strip it away.
9Mystere9 The reason Earth has an atmosphere is mostly because of the liquid iron core creating a magnetic field, protecting the gasses from getting swept away by solar "winds" as Jordan McDonald mentions. The moon has no liquid core and thus, no magnetic field to deflect energy waves from the sun, so everything will be swept away. And to also mention, on Earth, we are actually loosing helium because it is so light it escapes the gravitational pull and atmosphere of the earth, albeit extremely slowly. You can read about this on Wikipedia, or various other sources.
Here is the thing about explosions. An explosion is a displacement of matter at high velocity, often by creating a large volume of gas from not gas or breaking apart gas particles into lots of bigger and higher energy gas particles. So what happens when that wave of gas being ejected hits something that make a ringy sounding. Would that not be sound?
@@MarkusReese wouldnt that only work if you where touching the thing the air hit. But I guess your wright of the air hit your suit tlit would rimgnmakimg the air inside your suit will vibrate so I guess you would hear it
Worth noting, it's not friction that causes heat on reentry, but actually the way that an object entering an atmosphere rapidly compresses the air under it. This causes the air to heat up. This is why if you just drop an object from orbital altitude it won't burn up. It has to be travelling at orbital velocity to generate that kind of pressure. For the purposes of this video that all really down to semantics, but it's a huge misconception about how physics and space flight work.
"If you send someone twirling off into the void, then they'll keep going further and further into the soul crushing abyss, like George Clooney in that one movie." "Batman and Robin." "Bit harsh." 5:53
I love that she called Commander Shepard a "She" without a second thought, we all know that Jennifer Hale is way better than Mark Meer and thus the only logical canon choice.
Yeah. It didn't occur to me for one second to choose male Shepard when I started that game. I see enough dudes in other games that don't let me choose.
I love Mass Effect. Love love love it. But it breaks Newton's first law (#3 on the list) when traveling between planets as you have to constantly consume fuel in order to move forward in the same direction. Should be that you use fuel to go forward then drift in one direction for a long time until you want to stop.
Apparently CoD: Infinite Warfare's explanation for why you can hear things during the zero-g sections is the helmets worn by SCAR pilots have the ability to create artificial noises so when in combat outside of a pressurized, atmospheric environment it's still possible to maintain awareness of one's surroundings.
Regarding the hearing explosions in space, there's been some speculation that you would hear an explosion large enough or near enough to you because explosions produce a large amount of gas, you'd probably only hear it for a split second before the gas dissipated too much. Also if you're firmly planted down on the surface of something, say with mag boots, then you could possibly hear vibrations through that if they were close enough, think sticking your ear up against a wall to hear what someone's saying in the next room.
I-war/I-war 2, developed initially as a Startrek game (Voyager, i believe was the ship model) Yes, i remember it well. Played it and a friend got a job with them when they were working on i-war2 (possibly why I remember that one so well). Star Citizen is also working on Newtonian physics for space flight and it works quite well, too. 6 degrees of movement is tricky to manage, though, but some people are producing some amazing footage of space flight using the alpha.
I choose to believe that the "sounds" in space we see in sci fi movies and games are a kind of virtual reality heads-up display. It's plausible that it might be added to help spacefarers keep track of what's going on in directions other than where they're looking.
I’d like to add the old computer game Space Rogue. It’s revolutionary approach to space flight simulation was incredible, especially when piloting around the numerous gravity wells one encounters within various solar systems.
But sound can travel as vibrations between parts: put a finger in your ear, and then tap on your arm (preferly on one of your bones) and you can then hear the sound it produces on your ram, in your ear.
I never EVER get tired of hearing the drill instructor saying "That is why Sir Isaac Newton is THE deadliest son of a bitch in space" or "That is why we do NOT eyeball it". Physics was never so much fun. :) (Oh in case you haven't played it I'm referring to Mass Effect 2. The Sergeant is instructing two recruits on "The Citadel" and along the way we get a really good explanation of Newton's First Law of Motion. It's worth just standing there listening to him just for the comedic Southern States accent he talks in while dispensing what is absolutely accurate information)
What would eventually happen if the moon took a sizable amount of the earth's atmosphere, would it have it's own atmosphere? Sure the moon has less gravity so it wouldn't have the best atmospheric pressure, but enough to have a basic atmosphere right?
Unlikely, more likely that something large enough eventually fly's towards it and gets lodged/covers the hole, the suction eventually deforms whatever it is depending on what the things are made of and forms an airtight seal. The moon would need a thicker atmosphere to actually keep in the air it's taking, the pressure of all that air being portaled in would just start forcing the air out into space, gotta build up the shell before you can fill the void.
The moon *could* have an atmosphere with the same air pressure as Earth, its just that it probably wouldn't hold onto it for very long. The moon does not have a magnetosphere which would help it stop solar winds stripping it away over time. The weaker gravity adds to that. It does make its own atmosphere at (lunar) night though but its very weak and is pretty much completely gone at sunrise.
Amy Payne Exactly, but the volume that the atmosphere would have to fill on the moon would be 1/8th less than Earth. Gravity is also 1/8th as strong as the Earths. As they are on different sides of the equation, they would cancel each other out. (Roughly)
Unless the moon have a magnetic field like earth, it wouldn't be able to sustain an athmossphere. Mars might have been inhabitable if not for the destruction of its magnetic field. Although Mars still has a thin athmossphere, most of what it had "washed" away over time. That's a process still in action.
i wonder what would happen if the portal gun missed the moon and kept going until it hit another planet filt with life of you know deadly gasses or lava
![Megan Thee Stallion - Neva Play (feat. RM) [Official Video]](http://i.ytimg.com/vi/TpYTyAaTRts/mqdefault.jpg)
LOVE this quote from mass effect 2.
Gunnery Chief: This, recruits, is a 20-kilo ferrous slug. Feel the weight. Every five seconds, the main gun of an Everest-class dreadnought accelerates one to 1.3 percent of light speed. It impacts with the force of a 38-kilotomb bomb. That is three times the yield of the city buster dropped on Hiroshima back on Earth. That means Sir Isaac Newton is the deadliest son-of-a-bitch in space. Now! Serviceman Burnside! What is Newton's First Law?
First Recruit: Sir! A object in motion stays in motion, sir!
Gunnery Chief: No credit for partial answers, maggot!
First Recruit: Sir! Unless acted on by an outside force, sir!
Gunnery Chief: Damn straight! I dare to assume you ignorant jackasses know that space is empty. Once you fire this husk of metal, it keeps going till it hits something. That can be a ship, or the planet behind that ship. It might go off into deep space and hit somebody else in ten thousand years. If you pull the trigger on this, you're ruining someone's day, somewhere and sometime. That is why you check your damn targets! That is why you wait for the computer to give you a damn firing solution! That is why, Serviceman Chung, we do not "eyeball it!" This is a weapon of mass destruction. You are not a cowboy shooting from the hip!
Second Recruit: Sir, yes sir!
***** YES
Good
person troll No
YourRegularGamer Yes
Reddblueyoshi No
"When he parachutes out of a space station... Onto a highway." *silence more silent than the vacuum of space* "Jane?" "I'm okay."
Didn't Felix Baumgartner do something kinda similar?
He jumped out of a balloon that was relatively stationary. He wasn't even technically in space. A space station would be travelling at several thousand miles per hour in order to stay in orbit. It is the massive horizontal speed that creates all the friction problems for re-entry.
Even if stationary (the reason Baumgartner didn´t die is because he DIDN´T jump from space...), accelerating at approximately 10m/s/s means you are going to hit massive speeds just falling towards earth from a high enough altitude...with no athmosphere to slow you down, you keep accelerating...and then reentry happens.
For Example, falling for only 100 seconds would accelerate you to 980m/s, about three times the speed of sound. in less then two minutes. And you keep accelerating until you hit athmosphere. Fall for twice that and you are already at Mach 6. Now consider that the ISS only orbits around 400km above earths surface and how long you would fall, it´s still technically in the athmosphere (it has to constantly reaccelerate to not fall down). Falling from the edge of the Exosphere (10000km)...you´d accelerate to speeds easily exceeding the safe recomended dosage of athmospheric friction.
It is speed that is generating the problem...but even with no orbital velocity (falling straight down) you´d accelerate fast enough to burn up on reentry.
So in short, don´t worry about "it´s not the fall that kills you, it´s the landing"...it will be the fall that kills you....you will never hit the ground XD
That sounds like something a synth would say.
What!?
can we get more videos of Jane nerding out about space tho?
Admit it... you really wanted to end that sentence at the word 'Jane'...
Honestly, I wouldn't mind ending the sentence at nerding. But that might just be me.
+Sander Kamp True, I think it's the nerdiness that makes her so incredibly adorable.
Jane has Masters in Physics
For topic #3, the whole time you were discussing Newton's law, I kept recalling a moment in Mass Effect 2 where there is a general drilling two of his soldiers about the exact same thing when you arrive at the dock on the Citadel and it is hilarious.
+Christine Shane He was a sergeant. Still it was hilarious.
+Christine Shane NOD is right,it was a ''Sarge'' not a general.Preatty sure that a general's dutys dont include trainning rookie soldiers on a casual bases.
+Christine Shane it was basically like shooting a gun-- but your bullet is as strong as a nuke- and can go forever..
My apologies for my ignorance on the military subject. I just thought it was funny, guys. No big deal. But I learned something new. Don't ever get Sargents and Generals mixed up. You think with all of the military in my family, I would know this....
Christine Shane
Dont worry about it.Its just that from a sergeant up to a general there are a shitload of ranks in betwin.Usually a sarge is in charge of a small squad or platoon of soldiers while a general is in charge of a full contigent or even a complete branch of the military forces of a nation.In sume,there a ton of sarges but only a handfull of generals (at least in small countrys,US has got too much armed forces so probly they have a tad more then a ''handfull'' of them.)
You might "hear" some part of explosions since it's a lot of stuff rushing at you and buffeting your suit.
I think the "muffled" effect is implying you're still hearing vibrations as they pass through whatever surface you're on and then vibrating the air inside your suit.
+Kenazzle This is something a lot of people dont consider and I think this is true. If youre in contact with the surface of a ship that has an explosion you definitely would feel and hear it to some degree. It would only not happen if you were not in direct contact
+Kenazzle If the explosion is sufficiently big, it will send out a shockwave that will push matter around it, so yes, indeed, you will hear the explosion as the shockwave hits you.
+rohitchaoji aren't shock waves reliant on air (please correct me nicely if I am incorrect I am only in year 9, and therefore don't know much)
Not really, since they are pressure waves. Shock waves are also present in space, which is why some supernovae remnants have symmetrical, defined shapes. Shockwaves push any medium they come in contact with in the direction of their movement. So they can push air out, but don't need air to travel.
Jayden Winter Think of it as energy that's being given to whatever the wave comes in contact with, that energy leads to movement of the medium. It could be air, water, anything.
Mass Effect did indeed do a good job when it came to space, in my opinion, they perfectly mixed science fiction and facts, keeping a few things realistic and other stuff way out in the land of sci-fi.
I also liked how they tried to explain the sci-fi elements in the game with what we know about physics and everything space related. Not that they tried to say "this can be real" but in the way that it feels like possible tech for the player. They should get some props for doing that, in my opinion.
+Jonathan Markwell That's pretty much the definition of Sci Fi. Which differs from Space Fantasy.
+Cody Collins
They're kind of used interchangeably really. But I do prefer research over "because it works"
+lazerbeams2 I don't doubt it, but just because it's done doesn't mean it's correct. Prime examples of recent memory, The Martian and The Force Awakens, The Martian goes to depths explaining the mechanics and making it believable that this could happen someday, thus is Sci Fi, TFA goes to efforts of having cool things without alot of effort to make it believable, it's goal is to tell an interesting story that just happens in space, thus is Space Fantasy. Both cool in their own rights just different story types.
Isn't Space Fantasy just Space Opera?
That is not much of a credit considering Infinite Warfare is the worst game ever made. Despite not being made yet but you know what? fuck that.
"Space is not air, or water, or strings."
... String theory would beg to differ with that statement...
Alexander Dumas On the other hand, it's a good list for comparisons to point out the current problem with string "theory";
"Let me tell you about Water Theory! Basically, everything in the universe is made of tiny wisps of water!"
"Okay, interesting thought, where's your science?"
"Uh... Sorry, this call cannot be completed as dialed... BEEP..."
***** (It's a joke dude)
STRING.
Alexander Dumas String THEORY
THE STRING IS A LIE
I love any sentence that begins "Much like Godzilla."
Much like godzilla I enjoy sentences that begin with much like godzilla
that last bit about Portal gave me an idea... what about "Top 10 most innocent-seeming weapons of mass destruction"? :-D
MidnightSt That would be excellent... Especially for Jane.
Always loved the silent (aside from the sparingly used musical notes at key moments) spacewalks in the show Firefly. It's very tense, dramatic and makes you hold your breath even when nothing is happening. In other media, making explosions audible in space is done for effect but it's so standard and commonly used that it ends up having no impact. Seeing and not hearing an explosion ends up having much more impact due to the scarcity of the effect.
Another thing media usually gets wrong about space is ships meeting on a 2D plane like naval ships on the water. If two ships met in space they would typically meet at awkward angles to each other and there would be no real reason to align themselves unless they were docking.
I thought it was clever in Serenity when they moved the battle into the atmosphere so they could keep to the "space is silent" rules they show had stuck to and still give us loud explosions.
"Seeing and not hearing an explosion ends up having much more impact due to the scarcity of the effect."
The cleaving of Snoke's flagship with a light speed jump in The Last Jedi comes to mind. The dead silence in that brief moment really drove home the sacrifice that was made to ensure that the remainder of the Resistance could get to the planet in relative safety. At least, that was before we return to the noisy ship that was surely depressurized, but we can wave that off with individual forcefield generators for use in such an event.
that bit at the end of portal 2 is one of my favourite bits in the game
***** You can't deny his opinion. If he says that's what he thought of it, ''No'' is a flat out dumb and incorrect answer, dweeb
***** yes
***** yes
***** No
YourRegularGamer Yes
Jane's enthusiasm for space is incredibly cute.
my biggest pet peeve with space in games/movies is how they act like flying a space craft is like flying an airplane. when you turn, you just turn the wheen and you make this arc motion. that's not how it works. turning itself requires that you generate torque via some sort of motor. then it's just vector arithetic to translate your velocity vector to a new one in the direction you desire.
kerbal space program is really good at illustrating this.
Yeah, that's a one big mistake in Mass Effect. You can clearly see that in the (Spoilers!!!) fight with the Reapers at the end of 3rd game.
Yeah. But if you turn Rcs in Ksp on... Then you also will have that happen that happens in 'normal' space games... Your momentum is being controlled by small boosters. F. E. In empyrion galactic survival, in order for your Ship to have any maneuvering abilities you have to build thrusters on any side of the ship.
if you're talking about when the normandy does a 360 turn, I'm pretty sure the thrusters were in proper position to thrust after the turn
RCS only controls your attitude not your velocity.
...or at least not in a very meaningful way. That is unless you do what the shuttle did and use monopropellant to make orbital manoeuvres.
Well, those alarms would be coming from INSIDE your space suit, so you will hear them.
Actually,
The one thing that you *can* hear in space is explosions- they have their own medium (more precisely, they are their own medium.) Curiously enough explosions in space don't sound like explosions (the low-ish "boom" sound,) but are very high pitched (sue to lack of resistance in the way of the blast wave) so, in fact, if that pitch is too high, maybe you can't hear it after all. Are you confused yet?
+Vladimirs Kacs You would only be able to hear an explosion in space for the amount of time it takes for the gasses produced by the explosion to dissapate beyond the ability to conduct the energy of the sound waves OR the amount of time required to freeze the gas (whichever comes first)
+Kyle Duncan
Dissipation will (almost) always come first. Nothing really freezes in space, in fact most things capable of doing so boil (most famously water, in a process known as "vacuum drying").
That being said, what allows you to hear an explosion is the air in your suit/ship. The amount of gas produced by the explosion matters very little, compared to how hard the blast wave hits the outside of your ship. Indeed, the "explosion" can consist entirely of solid mass¹ and you'd still hear it if any fragments hit you ship.
----
(¹) Hypothetically you could keep charged fragments close together with an electro-magnet, then turn it off, producing a completely gas-free, and *reusable* explosive device. Chemical explosives are, for the moment, orders of magnitude cheaper though.
Yeah, As soon as the shock wave hits your suit it would create sound for you.
LAy off the crack dude
Chemical explosives create their blast and/or shock waves by the sudden generation and expansion of gas (a solid block of explosive suddenly turns into a cloud of smoke).
A nuclear device, on the other hand, creates a really intense radiation pulse. Now, if said pulse was generated within the atmosphere, the radiation compresses the surrounding air so quickly that the air becomes incandescent plasma hotter than the Sun. Thus the fireball and blast wave of a typical nuclear bomb. In space, that's not so much the case and the radiation has to slam against the target and try to compress/heat up the surface of the ship's hull.
I really thought the scene in Mass Effect 2 where Shepard's body was flung out into space and hurtled towards the planet below was MORE haunting and interesting because of the silence and the burning up upon re-entry. Explosion sound effects in space are cool and all, but nothing is cooler and more otherworldly than the reality of space.
Indeed!!
I've always found the silent space explosions, with the only sound being a person's breathing inside their spacesuit, far more intense than actually hearing the explosion. It's just so brilliantly surreal.
The coolest scene ever. It was even better because I wasn't expecting it
First time I played ME2 and that scene had me crying my eyes out gripping the screen screaming. "Abel Shepard noooooo!!!!"
Brady Benedict
I was expecting it because i played the demo first :( i regret that decision every time i play
Space is so cool, I love reading about things like black holes, neutron stars and pulsars, quasars and massive galaxies, and bigger super clusters of galaxies. The vastness of space is so mind bogglingly huge I couldn't begin to fathom it's immensity.
Also I have a question for anyone who cares to answer, when we drop an atom bomb on earth I know it's the radiation like x rays and gamma rays that heat the atmosphere to pretty much a boil, and that the expanding heat will make shock waves with the air and such (I think I'm by no means an expert) , but if you were to set a nuke off in space with nothing but you around it wouldn't it have a small explosion (I mean like a expanding fireball/bright light) from the detonation process and just spew out radiation without the Big Bang and fire being that there's nothing to collide with or would there still be a massive explosion/fireball/blinding light?
Nukes are set off by conventional explosions, which would give a regular explosion. Then the fusion/fission will start, probably with a lot of light and other radiation. Only the material of the bomb itself will be there to create a cloud of hot plasma. (note: atmosphere can't boil. only liquids can)
The cloud will of course still be mushroom-shaped.
:P
+N Lin More like end computers as we know them...
+N Lin damn.
while most of these points are true the shape would not be a mushroom cloud if detonated in vacuum. This is because the mushroom cloud is produced by the bomb's heat and shock waves interacting with the surrounding air mass. The exact shape of the detonation in vacuum would actually be far more chaotic as even small symmetries in the bomb would become more and more prominent as the outflow expanded outwards towards infinity (as there would be no air resistance to slow it down.
Now most of what we call space isn't technically a true vacuum at least as long as you are in our galaxy. In the vicinity of the solar system the sun's outflows of low density plasma carried along by its magnetic field would perturb the spread of the ionized bomb material.
And on a larger scale, even if you were in the interstellar medium away from any stars the blast would still experience the effects of the galactic magnetic field produced by the Milky Way galaxy as a whole as it spread out. (while negligible on earth compared to the Earth's and Sun's magnetosphere it is significant enough to have an effect in their absence).
So Andy gets angry when there is historical inaccuracy,Jane gets angry when there is space-inaccuracy. So what gets Mike pissed?
what about a pure stealth game with no guns and no cars?
Electric cars
Jane gets mad over physics-inaccuracy in general, astrophysics being one of these.
Thight space in his trousers.
I don't know why
But whenever she is in the video
I'm happy
Doge
+Dylan “SlowJoe” Higgins I prefer portage central middledoge.
Not that it's a bad thing, I do too, but it's the idea that there's two men and only one woman, so when you're watching the video the woman is instantly the most attractive thing you've seen all day... which is probably why a lot of their videos sandwich Jane into the middle of the countdown in between Andy and ... that other guy, look sorry I don't remember your name as much as Jane or Andy.
Course, in all reality Jane IS the most attractive woman on earth so I guess my theory might be wrong.
*****
Well said sir
Well said
To be fair about the Dead Space "muffled noises" bit, it could be that the sound vibrations are traveling through the floor you're standing on and through your suit.
This is awesome, videos like this is why I love these guys
***** yes
Me too
***** no to what?
Exactly!
***** yes
Portal 2 came out 4 years ago? That makes me feel middle aged...
***** yes?
Andrew Taulane No
YourRegularGamer Yeah m8
Me to...
No
Wait, if he hit something with a hammer in space, wouldn't he at least hear it somewhat due to the vibrations traveling through his glove into his space suit?
+George-Douglas Price Yes. Yes he would.
George-Douglas Price If you hit it harder than humanly possible then yes. But remember that the vibrations will dissipate and this happens long before the vibrations would reach the eardrum
+TheBoyCalledSam I will give you that. You probably wouldn't be able to feel the vibrations from a hammer, or at least not know you were feeling it. However, and explosion on the surface you are standing on would definitely be felt.
Yeah but he didn't think of that when he made up the story.
+TheBoyCalledSam But sound travels best through solids, so wouldn't it conduct through his suit and he could hear it?
Thereis one pet peeve I have with almost all movies (except for 1 movie, forgot its name but it's awesome) and games is that you don't immediately freeze in space, nor do you explode but if you hold your breath you die almost instantly when exposed to a vacuum. It's like extreme diving sickness that ruptures your blood vessels.
Event Horizon has a good portrayal of being in space without a suit. A guy goes through an airlock and starts bleeding from his orifices(like the eyes), and Lawrence Fishbourne jumps out to save him, telling him to blow the air out of his lungs to survive. The he gets saved and lives, for a while I think. Then space evil kills him I think.
No, yoi wouldn't freeze and explode. You would first swell, but your fluids wouldn't expand enough nor with enough speed to cause an explosion, then, you would boil, your body will still produce and store heat without having matter to which dissipate said heat, if you add the low pressure enviroment to that heat voila, you have a boiling human. So, no, you wouldn't freeze and explode.
+Larry Lewinsohn As far as I know that's not actually correct. Most liquids would evaporate and both, the pressure from the circulatory system and bubbles created by the evaporation, would keep the blood from boiling. That's according to an article by Geoffrey A. Landis and a few other sources.
Larry Lewinsohn I never said you'd freeze and explode. You wouldn't die from freezing. You'd almost instantly die from having gaseous bubbles rupturing your blood vessels. Kind of like instantly hemorrhaging internally.
Joonha Shcal
Basically like boiling alive.
Halo 4 had a pretty cool way of simulating space. Sure, it was kinda like Dead Space's under water sound at points, but you "heard" the rifle firing though the recoil into your shoulder, and your footsteps. Some ground based explosions seemed to send soundwaves though the hull into your feet. So it felt awesome, even though the realism could be blown away for various reasons on the battlefield.
In space its not like anyone's around to hear you scream anyway
Are you referencing the old "if a tree falls...' philosophy question?
BadWebDiver I wasn't but actually that makes it even more interesting
+Daniel rogers nah, you are your own observer. I stopped feeling sorry for Shroedinger's cat once I worked that out. Cats like boxes, but maybe not as much when they contain uncertain death.
You wouldn't even be able to scream. End up in space without a helmet, and the air would be sucked out of your lungs until they get crushed and schrivel into a lump of cells ...
+Guy Fawkes actually a human can survive almost a minute in space. you would be unconscious in seconds though.
They say space is the final frontier, when there's nothing in it except other frontiers. Yeah, I call bullshit.
That is exactly what I think.
When you think of it, we've been further and seen a lot more in space than we did in our oceans. From that point of view, they are the last frontier. XD
Silv3r Wolf It's like the age of exploration from way back when... so space is the equivalent to the seas and other bodies of water...
Star Ocean? ;A;
*****
no..... no one would say that
I'm sure it's been mentioned before, but reentry heat is less about friction and more about compression.
Yay science! I really appreciated those little details in the Mass Effect series where you could really tell that they had actually bothered to look into that whole space thing the setting was in.
you can hear explosions in space, if your close enough to the explosion. it creates its own pressure wave as the gases expand. That will vibrate the molecules in your body and you will be able to hear the effect thru bone conduction.
Are you dum dum? There are no gases in space. If the gases don't hit your body nothing will cause vibrations in your body. Pressure waves travel through matter. No matter = no pressure wave.
For the dispersing gasses to hit your body you'd have to be withing pretty much death proximity and your body would probably shatter from the acceleration.
So no. No explosions in space, and much less like the ones depicted in the games they criticize.
+TheDrB0B You can't accuse someone of being dumb when you say "There are no gases in space." Really? So what are nebulas, in your opinion? Seeing as science is "dum dum" with their description of them.
Macephtopheles I want to believe that you're trying to be a troll, because if you aren't, its a sad thing that you are suggesting that there are nebulae (not "nebulas" btw) in the depictions discussed in the video.
***** Nebulas and nebulae are both used. It's purely down to personal preference which people use. And what has what is shown in the video got to do with anything I just typed? You said "There are no gases in space" while calling someone else "dum dum" when gases are present in space. I questioned you on that, not what was in the video.
And, having implied they're dumb with your first response, you're now trying to insult me by calling me a troll and implying I'm pathetic? You're on a 100% insult streak with your input so far. "People in glass houses..." and all that.
Also, seeing as you tried to correct me unnecessarily, *it's a sad thing...
+Macephtopheles amen
ummm... shouldn't this be named "5 ways some video games got space really really right"
You mean that there isn't a board game that got space right?
Shh...
Not to sound like a know it all but they also show some games that don't get it right
as references to not getting it right
Xyzzyx how?
Actually, the reason things heat up upon entry in to the atmosphere is not because of friction. The object moves fast enough that the air cannot move out of the way which cause compression of the air in to a shockwave below the object. It's this process that causes heat build up, not friction at all.
nice, i was seeing if someone would call it out. misinformation is unfortunate
Tom Lacey its still technically friction if it builds up heat. if your body and the air cannot move out of the way that is your mass vs Air rubbing together and there is friction in that
Tom Lacey isn't it the compression causing the friction then? I mean, heat's only generated in so many ways.
www.quora.com/Why-does-a-spacecraft-heat-up-during-reentry
This should clear up any queries.
Tom Lacey If you want to be extra special technical about it, *some* heat is generated by air friction during re-entry... It's just not meaningful because the air compression's heat is the completely dominant effect.
Technically, space isn't any temperature. There isn't anything in space to be cold/hot. (He says not really knowing 100% if he's right. But fuck it, it's the internet.)
Actually, space has a temperature, because there are a few hydrogen molecules even in a vacuum. Although it is less than one hydrogen atom per cubic meter, it is enough to be able to say space has a temperature since temperature only needs a single atom because the speed of the atom is what determines the temperature.
Farmeryeti Actually all cold is the lack of warmth. All the way down to Absolute Zero which is the lack of any heat whatsoever, so yes space is cold.
There is an insignificant amount of stuff which is just enough to give it some temperature, and it's impossible to not have a temperature. Temperature is essentially just a measurement of how much heat there is, even if there's no heat there would still be a measurement to represent that (i.e. absolute zero).
it has to have temperature because absolute zero is -273.5 degrees and space is more around 270 degrees (or so the physicists say
popnomatron Well, it's not impossible to not have temperature.
It's the measure of the energy the molecules of something has.
If it's empty then it doesn't have a temperature. The various particles IN space have a temperature- but "space" by definition has nothing in it (so no temperature) c:
Getting rid of factors like pressure, radiation, and others - You could survive in space for a _very_ long time (as is commonly thought) because there's no medium for heat to transfer out of your body from.
I mean you RADIATE heat- but you aren't a radiator so that's only at a _very_ slow speed.
There might not be air in space but there sure are a lot of air quotes.
1:15 well we don't know if space is string or not yet.
eyyyyy
that's what string theory is, right?
I thought it was the theory about why cats chase balls of yarn? :D
Valandar2 that one. Yeah
I knew Jane was a wizard
She went to Hogwarts
Witch*
She came from the moon?
I did. And it was DELICIOUS!
reishiya son of a bitch....
Actually, you guys got it wrong about Dead Space, and you can even see why in that short clip you guys showed.
The sounds Issac and thus the player hears? They travel through his suit. You actually NOT stand on a surface and just float still in the 'air', and the only sound you hear is Clark breathing and the electronics of the suit.
Sorry to be a nit-picker, but it rather annoyed me since the 'good' example you pointed at (ME2) actually did the same freaking thing, but for only about twenty seconds and forgot that Shepard's feet are actually physical things touching other physical things sound can travel through.
the only sound you would hear is that generated by the suit, you wouldn't hear the crates smashing and necromorphs jumping, growling and shooting at you.
The thumping sound in ME2 isn't your feet, its your heartbeat.
But the Astronaut a guy who was freaking in space said if you banged a hammer on the ship it wouldn't make a sound soo... Astronaut over game.
Jeffery Sparks Their suits are insulated with many soft layers, so that's probably the reason. If you'd use a heavy drill or something that causes a lot of vibrations, you would probably be able to hear/feel it through the suit.
Kim Stennabb Caesar But you couldnt. Sound needs a medium such as air to exist. Since theres no air in space there is no sound, no matter the vibration
But space just might be strings.........
What are you even on about? String theory?
Leela Moriarty mmhmmmmmm
WouldYouKindlyFuckOff Well, string theory isn's just about "space just might be strings", but rather the idea that the atoms (or, well, really, the pieces that make up the pieces that make up atoms) gain mass because they're somehow composed of tiny strings. Like, if space was strings (which goes back to space still being a bunch of nothing, thus, not that many strings), so would everything else.
Leela Moriarty funny you, thinking I know what I'm talking about.
***** Yeah, he does.
the greatest contribution to re-entry heating is not friction but shock heating due to the spacecraft compressing the air in front of it. Great video though ;)
Space is not "very, very cold" unless you are in shadow. In direct sunlight space is actually very very hot-like thousands of degrees hot. It would be very easy to hide in a solar wind jet-stream...or just about anywhere near a star. I am greatly disappointed you didn't include Tachyon: The Fringe and it near perfect representation of space flight.
Nither one of your comments contradict the fact I was pointing out which was: It would be very easy to hide in a solar wind jet-stream...or just about anywhere near a star. And By the way, photons from the sun will hit an object and the hotter the object will become, therefore hot if you are there to measure it.
It would not be easy to hide, as your ship would reflect the radiation like a speck of dust in a laser beam.
And about the cold, the few atoms you find in space are technically very cold, but since there are so few it is mostly a heat-insulating vacuum where transfer only happens through radiation.
It's not the friction that causes the heat on re-entry, it's the compression of the air in front of the space-craft.
Glad I watched this. Expected fun space-talk, got that and Mass Effect talk at the same time.
Definatly my favourite episode from outside xbox in a long time, keep it up guys!
NO space is NOT cold. Space is a Vaccum. Depending on where you are depends on the heat. If you're behind a planet sure it's cold, but if you're in front of a planet facing the sun, it can be fairly warm, depending.
YOU become warm. not the space around you
Space has no heat, but neither does it have conductance. Therefore, radiation is the only way to either gain or lose heat. If you are in the path of solar radiation, you gain heat. In any case, you are losing heat in all directions unless insulated. But you don't lose heat at the same rate as, say, when you touch liquid Nitrogen. LN2 will cool things through conductance, radiation, and evaporation. This is way faster than heat radiation alone.
Vacuums are so resistant to heat transfer that they are one of the most essential aspects of thermal storage methods. A steel tube inside a larger steel tube with a vacuum between them will allow the inner tube to hold a liquid at temperature longer than almost any other passive method.
Therefore, despite the fact that space has practically no heat, it is also not "cold" in the same way as we think of antarctic wind.
Heat is a measure of the average speed of which the atoms move in relation to each other, and therefore cold does not really exist, it is basically a word we use when the atoms in our skin is being slowed down by whatever our skin touches.
And since space is made out of nothing, meaning no atoms, there is no heat (or cold) in space..
Well there are atoms in space but they're few and few between, relatively speaking.
There is another way to get rid of heat in space, you transfer the heat into some matter and throw it out.
I just think of the Apollo "barbecue roll" so that the spacecraft is heated evenly. Calling space cold is like saying your thermos keeps stuff cold because the vacuum in the shell of the flask is cold.
Most of the heat generated from entering into the atmosphere is due to compression not friction. You are going so fast that the air in front of you can't get out of the way fast enough, creating a super dense portion of air that gets superheated due to Charle's Law (temperature and density are inversely proportional, decreasing one increases the other and vice versa).
Hi past Jane, future Mike sent me here from a video about sexy space ladies. Future you says hi!
I can't bring myself to upvote you.
If I had a physics teacher like Jane, I'd be the next Einstein. :)
I could listen to her all day, seriously.
6:54 Shepard noooooooo!
noo!
better now than ME3
Kevin Dudgeon
we dont speak about ME3 ending O_O
That's cool. Let's (NOT) talk about Destiny now.
shropshirec the darkness is the great all mighty poo (spoilers)
I love when they break this "disscusion with the viewer" with an actual discussion with themselves back stage, its kinda refreshing having someone else talking in the background
An astronaut would hear something when he's banging with a hammer. The vibrations of the impact would travel up his arm and he'd hear a thud as it reaches his eardrum.
Also, what exactly is wrong with the alarm in Adrift? If I were asked to design a suit that warns the astronaut when the oxygen levels are running low, where do you think I would put the alarm?
Unless the astronaut had his or her helmet pressed against the metal being struck by the hammer, the sound would not travel up the astronaut. The vibration from the impact might, but it would not translate as sound to the ears.
+Dennis Francis I think they might actually. I remember seeing footage in which an astonaut performed repairs during a space walk and throughout this footage some of the vibrations made by their tools registered through the helmet mic positioned to capture their vocals for communication. So the vibrations were sufficient to propogate up their suit to their helmet and then propogate through the air in their helmet to the mic.
All sound is is vibrations. That vibration travelling through your arm and suit to your ear is sound. It's the same reason astronauts whose communications have failed can still communicate by pressing their helmets to each other and speaking.
Firefly got the no sound in space thing right.
Never forget
They got a whole lot of things right. Sadly, "How to convince Fox not to cancel you" wasn't one of them… :/
Technically, you could go out in space in just your underwear and live, even though it's cold, since there's nothing in space to transfer heat with. Your skin is also able to expand enough to handle the difference in pressure, and your blood wouldn't boil since the inside of your body is indeed still pressurized. So you'd be fine.
At least until the oxygen deprivation kills you.
Just don't try to hold your breath or your lungs will pop.
have you ever seen a biological sample in a vacuum chamber? You would be far from fine.
RainbowNoms and the liquid in your eyeballs boils
Your blood would but your sweat, saliva, bile,and whatever is in your bladder will. That sounds even worse actually.
Sadly, your lungs would collapse on themselves, causing death.
How did you not mention the gunnery chiefs speech on Newtonian motion from ME2?
A couple thoughts on the silence:
Sound needs a medium, for an explosion that medium would be the gas of the blast wave, so you would hear any explosion that you could feel.
That astronaut interviewed seemed to have forgotten his headset is US Air Force issue hearing protection, so yes, he can't hear his hammer, he would with the same headset be able to fly an A-10 and only barely be able to hear either it's jet engines or it's 30mm rotary cannon firing, and thus no, he would not be able to hear the sounds of his suit machinery as assumed.
I know it's been a long time, but this is genuinely one of my favourite videos that the channel has ever produced.
"I brought you here to talk about Mass Effect 2, basically, and now you've started watching and you can't stop meeee"
okay but that would basically be me as a youtuber
came for space. stayed for her :3
Actually.... Lockout got it right. The station was not in a true orbit. It was being held above a stationary point relatively close to Earth. It looks like somewhere between 100 to 200 miles above the surface. It uses it's engines constantly to maintain that. Which is part of the plotline. So anything dropping from it would be at zero velocity relative to any point on earth. Now as the two dropping would be getting closer, their rotational speed would increase, but not by any significant degree. At least not before they started hitting atmo and started slowing down. Remember, Space Ship 1 drops from 70 miles with no heat shields at all. They are talking about sending it up to 100 miles up. So Lockout was a stretch, but not a huge one like you make it out to be.
this video is ancient now but i really love the bit in dead space 2 where you jump out the space station's window to float about and re-align some solar panels. it's a fairly low-intensity section but there's something about just floating out there, seeing all the stars and the surface of saturn off in the distance, and isaac's breathing that just isolates you really well.
Common misconception in number 4, the friction isn't actually what causes the majority of the heat, it's the compression of the air if front of the craft. The speed on entry is high enough that the air can't get out of the way fast enough, so it's rapidly compressed causing it's temperature to shoot up.
it is not air friction that causes heat when reentering the atmosphere. it is air compression.
^ this. It's also important to remember that re-entry temperatures are in the thousands of kelvin range...well inside plasma territory.
+Samuel Higginbottom You're partially right and partially wrong. It is air friction that causes heat and also the gasses (appearing in front of a body) compressing cause heat.
+Skull Gun You are wrong. Its way more about air compressing in front of the spacecraft, air friction has relatively little to do with the heat.
thunda I said. What does the heat is the air compressing under the vehicle *and* the friction.
Skull Gun
Air friction plays a very small role in the heat generation. Its 95% about the air compression, which heats up the air molecules to a very high degree. Friction plays basically no role in that. Read up on NASA's publications about that. Or just follow Elon Musk, he said the same thing recently on Twitter.
"I brought you here to talk about Mass Effect 2 basically" - that's how I normally start after inviting all my friends over.
You actually could parachute to the ground from low orbit, as the 'burning up' affect seen in asteroids and renegade satellites only occurs because insane buildups of speed do to lack of resistance in space contrast rather violently with the sudden friction of the atmosphere, speeds witch can't be attained simply by falling from a space shuttle.
It's like the difference between dropping a rock to the ground and firing it out of a rail gun.
Some redbull guy did that.
Felix Baumgartner
Some other dude beat his effort.
***** yes
Alex Z
I think Elite Dangerous would be my favorite because of the scale, one to one copy of our galaxy. Stations revolve around planets and planets revolving around stars with accurate speed, On top of that the size of the planet have very realistic gravity and how it effects your ship.
The muffled sound makes perfect sense when you consider you're making contact with the surface you're walking on, which is making contact with items that you're knocking around... so there is a path for the sound waves to travel from the vibrating objects to your ear drums.
I may be biased but I love brainy women. Thanks for airing several of my pet peeves about space movies.
mass effect the game with the most well thought story.
well 2/3 of it anyway.
8:36 maybe we should give planet spaceballs a portal gun and they would finally get all the air from planet druidia, it would just take a while, they could make and entirely compressed room with not a single bit of oxygen, fill it to the brim, close that specific portal and use it, and when they run out of air just fill it up again
I loved the mass effect series, haven't played it in a while though so I forgotten about the codex entries- and how much I loved listening to them all and actually learning. Having them narrated, or whatever, was a really good feature. I hate reading through walls of text. The voice was perfect. LOVED CODEX ENTRIES
(3:15) The "coldness" of space is arguable. Much as sound requires air or water to propagate, heat transfer is much more efficient in a fluid medium, which allows heat transfer by convection. You also need contact with matter for conductive heat transfer. An object floating in space can only get rid of heat by radiation, which is relatively slow. In space, getting rid of heat can be harder than taking it in, especially if there's a sun shining on you.
well if you're in space and you're walking on something the vibrations can propagate through that material to you. also explosions tend to release lots of gas, so the muffled sounds are quite plausible.
"Batman and Robin?" HAHAHAHAHAHAHA
i had no idea that massimino was a real astronaut. i thought he was a big bang theory character!
And Amy really is a neurologist (it's why they cast her as such, the casting call was just for a love interest). TBT is good about stuff like that.
Just to be a pedant... Mayim is a Neuroscientist not a neurologist, so she's even closer to her character's area of study.
Fun fact. The friction from air resistance during reentry does not actually create the heat. It's the compression of the gas in front of the craft that creates it.
You forgot to mention Mass Effect's "If you shoot and miss, you're going to have, at some point in space and time, ruined someone, somewhere's day" quote. (Or however it goes) under the subtitle of Newtonian physics.
The moon actually has a very thin atmosphere so there would be a very small amount of pressure.
Jordan McDonald But the moon's atmosphere and pressure is so low that it essentially is negligible under any practical circumstances. That's why most people don't know it has an atmosphere.
Lee Jones The moon does not have enough mass to support a thicker atmosphere, gasses will get pulled away from it towards other celestial bodies. So basically, no, the pressure would not equalize.
Kim Stennabb Caesar It mostly gets stripped away by solar wind
Kim Stennabb Caesar The escape velocity of the moon is 2400 m/s or about 5400 mph. Given that this is ~5 times faster than a gas moves at room temperature, I think it would form into an atmosphere, and would take some time on a geological time scale for solar winds to strip it away.
9Mystere9 The reason Earth has an atmosphere is mostly because of the liquid iron core creating a magnetic field, protecting the gasses from getting swept away by solar "winds" as Jordan McDonald mentions. The moon has no liquid core and thus, no magnetic field to deflect energy waves from the sun, so everything will be swept away. And to also mention, on Earth, we are actually loosing helium because it is so light it escapes the gravitational pull and atmosphere of the earth, albeit extremely slowly. You can read about this on Wikipedia, or various other sources.
Here is the thing about explosions. An explosion is a displacement of matter at high velocity, often by creating a large volume of gas from not gas or breaking apart gas particles into lots of bigger and higher energy gas particles.
So what happens when that wave of gas being ejected hits something that make a ringy sounding. Would that not be sound?
I don't think so since the ring can't reacht you'r eardrum
@@mathewvanlonden8310 Well, it would drum off the suit is what I hypothesize.
@@MarkusReese wouldnt that only work if you where touching the thing the air hit. But I guess your wright of the air hit your suit tlit would rimgnmakimg the air inside your suit will vibrate so I guess you would hear it
So no one can hear me fart in space... That's it I'm moving to the moon
starelmgaming but people would be able to hear it on the moon
If your fart is in your spacesuit, then your ass will still be contained in a medium for sound to travel.
Actually, the only person who would hear it is you.
Also, if you fart in a spacesuit, then the gas has nowhere to go, aside from in your own suit.
Worth noting, it's not friction that causes heat on reentry, but actually the way that an object entering an atmosphere rapidly compresses the air under it. This causes the air to heat up. This is why if you just drop an object from orbital altitude it won't burn up. It has to be travelling at orbital velocity to generate that kind of pressure.
For the purposes of this video that all really down to semantics, but it's a huge misconception about how physics and space flight work.
"If you send someone twirling off into the void, then they'll keep going further and further into the soul crushing abyss, like George Clooney in that one movie."
"Batman and Robin."
"Bit harsh."
5:53
I thought Asteroids was pretty accurate. You get hit by a big (or small) rock in space, your ship blows up. 16 bit ftw.
KnightOfGaea asteroids runs on a 6502. It barely qualifies as 8 bit
I love that she called Commander Shepard a "She" without a second thought, we all know that Jennifer Hale is way better than Mark Meer and thus the only logical canon choice.
Yeah. It didn't occur to me for one second to choose male Shepard when I started that game. I see enough dudes in other games that don't let me choose.
I love Mass Effect. Love love love it. But it breaks Newton's first law (#3 on the list) when traveling between planets as you have to constantly consume fuel in order to move forward in the same direction. Should be that you use fuel to go forward then drift in one direction for a long time until you want to stop.
Maybe they use fuel because they're accelerating and decelerating the entire time.
Apparently CoD: Infinite Warfare's explanation for why you can hear things during the zero-g sections is the helmets worn by SCAR pilots have the ability to create artificial noises so when in combat outside of a pressurized, atmospheric environment it's still possible to maintain awareness of one's surroundings.
Regarding the hearing explosions in space, there's been some speculation that you would hear an explosion large enough or near enough to you because explosions produce a large amount of gas, you'd probably only hear it for a split second before the gas dissipated too much. Also if you're firmly planted down on the surface of something, say with mag boots, then you could possibly hear vibrations through that if they were close enough, think sticking your ear up against a wall to hear what someone's saying in the next room.
I-War (dunno who might remember that) had Newtonian flight physics, possibly one of the earliest 3D games to do so.
I-war/I-war 2, developed initially as a Startrek game (Voyager, i believe was the ship model)
Yes, i remember it well. Played it and a friend got a job with them when they were working on i-war2 (possibly why I remember that one so well).
Star Citizen is also working on Newtonian physics for space flight and it works quite well, too. 6 degrees of movement is tricky to manage, though, but some people are producing some amazing footage of space flight using the alpha.
I clicked on this purely for ME2. Great game, neat it about 30 ish times.
It had to be said. Thanks jane
Indeed!!
She is also rather clever and witty
I choose to believe that the "sounds" in space we see in sci fi movies and games are a kind of virtual reality heads-up display. It's plausible that it might be added to help spacefarers keep track of what's going on in directions other than where they're looking.
I’d like to add the old computer game Space Rogue. It’s revolutionary approach to space flight simulation was incredible, especially when piloting around the numerous gravity wells one encounters within various solar systems.
the girl knows her work
That "I'm okay" was gold
But sound can travel as vibrations between parts: put a finger in your ear, and then tap on your arm (preferly on one of your bones) and you can then hear the sound it produces on your ram, in your ear.
I do not own a ram sir, where may I purchase one to perform this experiment? ( ͡° ͜ʖ ͡°)
Atomic Robo Tesla Rams can be found quite readily on mountain and hillsides, ready and waiting for just such an experiment.
MK3424 Sorry to burst your bubbles....it would be quite impossible to put your finger in your ear in space because...y'know....helmets
GRiM What if you put on the helmet instead?
Atomic Robo Tesla Your helmet would be on, your in space :|
THANK YOU for saying what games/movies have spoilers in the video! No one's done that before, and it always really bugs me.
I never EVER get tired of hearing the drill instructor saying "That is why Sir Isaac Newton is THE deadliest son of a bitch in space" or "That is why we do NOT eyeball it". Physics was never so much fun. :) (Oh in case you haven't played it I'm referring to Mass Effect 2. The Sergeant is instructing two recruits on "The Citadel" and along the way we get a really good explanation of Newton's First Law of Motion. It's worth just standing there listening to him just for the comedic Southern States accent he talks in while dispensing what is absolutely accurate information)
What would eventually happen if the moon took a sizable amount of the earth's atmosphere, would it have it's own atmosphere? Sure the moon has less gravity so it wouldn't have the best atmospheric pressure, but enough to have a basic atmosphere right?
Unlikely, more likely that something large enough eventually fly's towards it and gets lodged/covers the hole, the suction eventually deforms whatever it is depending on what the things are made of and forms an airtight seal. The moon would need a thicker atmosphere to actually keep in the air it's taking, the pressure of all that air being portaled in would just start forcing the air out into space, gotta build up the shell before you can fill the void.
The moon *could* have an atmosphere with the same air pressure as Earth, its just that it probably wouldn't hold onto it for very long. The moon does not have a magnetosphere which would help it stop solar winds stripping it away over time. The weaker gravity adds to that. It does make its own atmosphere at (lunar) night though but its very weak and is pretty much completely gone at sunrise.
Even Andy how at the same pressure? Isn't air pressure a calculation of air volume and gravity?
Amy Payne Exactly, but the volume that the atmosphere would have to fill on the moon would be 1/8th less than Earth. Gravity is also 1/8th as strong as the Earths. As they are on different sides of the equation, they would cancel each other out. (Roughly)
Unless the moon have a magnetic field like earth, it wouldn't be able to sustain an athmossphere.
Mars might have been inhabitable if not for the destruction of its magnetic field. Although Mars still has a thin athmossphere, most of what it had "washed" away over time. That's a process still in action.
I know this is an old video, but Jane looks really good in this outfit. I hope she sees this comment. XD
i wonder what would happen if the portal gun missed the moon and kept going until it hit another planet filt with life of you know deadly gasses or lava
To paraphrase what Data had to explain to Riker in "The Naked Now", you don't get sucked into space, you get blown out with the outrushing atmosphere.
Fun-Fact: reentryheat isn't due to friction, but compressed air turning into a plasma, in front of the spacecraft.