Комментарии •

  • @VascovanZeller
    @VascovanZeller 7 лет назад +15

    Nothing much to add, i just wanted to put in a word of encouragement, I like what you have been doing, definitely keep it up!

  • @jasonsmcd
    @jasonsmcd 7 лет назад +10

    I get the gravity assist would take much longer than shown in the episode, however to offset this somewhat there is also the fact that Alex would still be able to use the Rocinante thrusters constantly during hi travel path. Additionally, there would be periods where Alex may have been able to use the Epstein Drive for short periods when he was on the far side of any of the planets or larger moons. His speed may have been able to be much faster than gravity assist alone.

  • @sharpelbows
    @sharpelbows 7 лет назад +7

    I really appreciate that you speak in a normal voice and not a weird RUclips voice that so many people do on here.
    Quick nitpick--a cocoon is a moth and a chrysalis is butterfly.
    Westworld is a great show.
    #pizzaparty

  • @cellblock776
    @cellblock776 7 лет назад +17

    I'd be interested in seeing you go back to cover Season 1 of The Expanse.

  • @johnnyrivas2619
    @johnnyrivas2619 3 года назад +2

    OMG can you just imagine all the havoc a cat could wreak in zero g?

  • @pixelneer
    @pixelneer 7 лет назад +4

    I just wanted to add what I am seeing here and also encourage you to keep up the great work. For times when we don't have The Expanse... various aspects from movies would be cool. i.e. The theory of time in "Arrival" the depiction of black holes in "Interstellar" etc.
    Again, keep up the good work. I look forward to seeing you and your channel grow.

  • @ralphsmith2126
    @ralphsmith2126 6 лет назад

    Thanks Science Guy. I get previews of an awsome show and a science lessons/ updates. It makes the show more fun to watch knowing that (with the info we have now) that this is how it might really be environmentally out there.

  • @ross8548
    @ross8548 7 лет назад +3

    It's not a new show, but Star Trek TNG has a ton of great science worth analyzing in my opinion.

    • @vedranbileta8346
      @vedranbileta8346 7 лет назад +1

      And funnily, Naren Shankar, one of The Expanse show-runners was one of people working on TNG too ;)

  • @mattbracher4973
    @mattbracher4973 7 лет назад +2

    Thank you for a not-too-complicated look at gravity assist that wasn't as fanciful as what we saw on TV. The animation of Juno really helped. My experience with the idea began with the novelisation of 2001 (I think) and then skipped a few decades to the magical go-back-in-time aspect of a slingshot maneuver in Star Trek IV. (I know it was covered in earlier episodes of "Star Trek", but they weren't on my radar.)
    With the approach you've shown here, I'd love to see your take on movies like "Ghost in the Shell" or "Passengers". I'd probably recommend waiting until they're on disc, though, to increase potential audience and to give you the clearest ammunition possible for putting together a video. It would save you from relying on the trailer and publicity stills for video content.
    I'm curious about your take on the clones in Orphan Black, but that's a pretty limited well to draw from. Beyond that, "Doctor Who", and "The Expanse", there isn't much TV that I watch.
    And of course I'm one of the people who would also pay rapt attention if you did cover past episodes of "The Expanse". You say that you'll probably do so thematically, which makes sense, but there probably are quite a few of us out here who would come along for the ride as we revisited last season and the first half of this season.
    Thanks for your hard work! #PizzaParty!

  • @alexflores7652
    @alexflores7652 4 года назад +1

    The Expanse is a great show and get the science so right, but Babylon 5 did a great job of showing how the station produces gravity and how the ships move in space like the fighters and even the capital ships move.

  • @thepiranhawins3828
    @thepiranhawins3828 5 лет назад +2

    Talking about animals coming with us, reminds me of the rat we see on the cant.

  • @EricTrang
    @EricTrang 7 лет назад +3

    I highly recommend the novels. In the novels, they take much longer time travel between those places, more authentic than the show.

  • @maxw6887
    @maxw6887 7 лет назад +3

    Love your videos! I think you could do a couple more videos on the Expanse. You already mentioned spinning up Ceres. I always wondered, while spinning up Eros seems like a huge thing to do, Ceres always amazed me, as it is way bigger. Some more ideas:
    - Lagrange stations - what and where are they?
    - Travel distance and time from inner to outer planets, and how much it can differ depending on where planets are situated
    - Terraforming of Mars
    - Asteroid Mining
    - maybe a little bio and social science - height growth of Belters and Martians, Collectivism of Mars to a common good and tribe culture of Belters
    #PizzaParty

  • @NBCodeCutter
    @NBCodeCutter 6 лет назад +2

    While we're all waiting until February, 2019 to see Amazon's production of The Expanse, I'd love if you covered season 1, also!

  • @TheBricknell
    @TheBricknell 5 лет назад +2

    I'd love to see how dogs and cats adapt to space.

  • @k.s.k.7721
    @k.s.k.7721 Месяц назад

    Regarding keeping space "clean", the international space station is already overrun with bacteria that so far cannot be eradicated, and is a cause for concern for the health of the astronaughts assigned there. So we're already creating extremely tough microorganisms that do not respond to our current antibiotics or standard sterilization methods.

  • @kedrednael
    @kedrednael 7 лет назад +4

    Really nice videos, I was looking forward to this.
    It is unfortunate that they choose Cyllene because that moon orbits retrograde in regard to the inner moons. You would encounter Ganymede with 20 to 30 km/s. The orbital period of Cyllene is two years (and six days or something)! If you would start your journey from Cyllene periapsis it would take 2 months to reach the inner moons. Just tested it in space engine. Nice blog explaining their decisions, thanks for sharing :).

  • @mikemcmillan2619
    @mikemcmillan2619 6 лет назад +1

    If they are on a smaller body and within an atmospheric bubble like a space station on the surface, firing a gun with a solid projectile would be different than on earth. If a Martian Marine was training on the surface (of Mars), that's not 1G training unless there is a device in the suit to adjust the feel. If the suit can adjust the feel, why bother with 1G at all?
    Just putting it out there. I love the show and your videos are great. In addition, thanks for explaining that it is just Sci-Fi (wft if SYFY?) and a TV show that needs to express a concept more than visual accuracy.
    Drake-Fermi. Asssume there are millions of either existing or extinct spcecies just in our Galaxy. There form of communication might be a completely unknown (different) form than radio waves or even light waves. Therefore, if we don't know what to look for, we might not recognize it as such. On top of that possibility, the distance from us or our position and angle we are looking at any given time might be wrong (the signal just passed in front or behing us as it passed. LOL Just thoughts.
    Keep up the good work.

  • @chiffmonkey
    @chiffmonkey 6 лет назад +31

    "Do you think we'll keep space clean"
    1. We haven't kept this planet clean.
    2. We haven't kept its orbit clean.

    • @spacebound1969
      @spacebound1969 6 лет назад +4

      Space is also ridiculously fucking large. So littering in space is just... incomparable.

    • @mattbrown3380
      @mattbrown3380 6 лет назад +2

      I think he meant clean as in Microbial clean.

    • @iliketrains0pwned
      @iliketrains0pwned 5 лет назад +2

      3. We even left a bunch of crap on the moon. Literally.
      ...ok that last pun was by accident, but it was too good to leave out.

  • @cacharadon7460
    @cacharadon7460 6 лет назад +1

    Giant genetically engineered Tardigrades, that's what we'll end up growing in space

  • @spacedoge3508
    @spacedoge3508 5 лет назад +1

    well the rcs of the roci seems to have a huge amount of thrust and delta v (more than 9.8km/s) as it can be used as landing/ascending thrusters.

  • @stratcat3216
    @stratcat3216 3 года назад

    fantastic show

  • @1nf0calypse
    @1nf0calypse 6 лет назад +2

    Does anyone know why the map of Ganymede in the beginning has the outline of a map of parts of England and Wales around it?

  • @neilwilson5785
    @neilwilson5785 5 лет назад

    Nicely done. subscribed.

  • @garethsmith7916
    @garethsmith7916 7 лет назад +2

    You should do an episode or two on westworld

  • @jollyrogercjf1
    @jollyrogercjf1 7 лет назад

    great shows! Do you think you might be able to tackle the time travel of the show Continuum?

  • @JcoreUKhardcore
    @JcoreUKhardcore 7 лет назад +1

    #PizzaParty Great video as always, thanks!
    Knowing that only 2 episodes left, I'm already pretty sure I'll be missing The Expanse a lot.
    About what you could cover: Arrival, The Martian, Interstellar - still quite fresh movies with some good science in them. Also maybe The Passengers to show some bad science ;)

  • @JediCabbit
    @JediCabbit 7 лет назад +3

    I agree with your assessment of reasonable artistic license regarding the slingshot scenes right up until the last bit. Turning around suddenly that far in would require a ridiculous amount of acceleration, similar to that of the Cantebury in episode 1. Doing it with reaction thrusters alone doesn't just stretch the physics, it breaks it entirely, along with my sense of immersion. I think this is the biggest science/realism concession they have made yet and it makes me worry about the future of the show...

    • @LetsDoTheScience
      @LetsDoTheScience 7 лет назад +1

      Yea that was out of place and kind of jarring when I saw it too.

    • @ReddwarfIV
      @ReddwarfIV 7 лет назад

      Depends. You can use gravity assists to slow down as well as speed up, or to make plane change maneuvers that are highly expensive in terms of delta-v when close to a gravity well. So Alex was likely doing whatever velocity was needed to skip to the next rock, which could have a low relative velocity allowing him to move slowly.
      I'd wonder more why they put the Roci at Celine instead of somewhere closer to Ganymede if they didn't want to worry about timing issues.

    • @ReddwarfIV
      @ReddwarfIV 5 лет назад

      @@htko89 Thing is, he never used his Epstein drive to start the slingshot. It only looks fast because they chose to show the Roci passing many moons in a short period of time - fine for giving the audience a sense of movement, but unrealistic even at full Epstein thrust.
      As for "orbital speeds" that is only relative to the surface of whatever planet a spacecraft is above. The moons of Jupiter are _also_ moving at orbital speeds, the only question is what the relative velocity was between the moons and the Roci.
      A better question is why didn't the Martian destroyer spot the Roci when the Roci was able to spot the destroyer?

  • @anonymoushypersphere9093
    @anonymoushypersphere9093 7 лет назад +5

    Does Interstellar count as current? How about Arrival? Westworld?

  • @joekilker6373
    @joekilker6373 4 года назад

    Scale is a bigger problem for me than journey time. When Alex is hiding behind Europa, with the other ship in the foreground, the Roci should be a dot at most, unless Europa is so small that it couldn't possibly have the mass to form a sphere.
    It's 'Game of Thrones' level messing with weights and measures. Hmm, could there possibly be a connection..?

  • @luciddose
    @luciddose 7 лет назад +2

    great episode thank you for your hard work. quick question what program where you using to show the moons of Jupiter?

    • @LetsDoTheScience
      @LetsDoTheScience 7 лет назад +2

      Thanks for watching. Universe Sandbox 2. It's pretty cheap on steam.

  • @vedranbileta8346
    @vedranbileta8346 7 лет назад +2

    #Pizzaparty Another excellent episode. This show is becoming my weekly drug, especially as I am writing a review and asking some of the same questions. And here I am getting a proper sciencey answers. I am happy to see that you paid attention to Shankar's post on Daniel Abraham blog. But my biggest complain was incineration scene. I know that they wanted to do it in futuristic way, but is something like this even possible. With all matter into energy rulings. Would there be any residual remains after the process. Or would it be done in a different way?

    • @LetsDoTheScience
      @LetsDoTheScience 7 лет назад +2

      It was a strange scene. Fusion power is so ubiquitous in the setting I'm guessing this was some kind of plasma based cremation but the execution of it didn't really make a lot of sense to me either. No containment if so. Lots of narrative license there and I don't really know why it was needed.

  • @northshorecouple8709
    @northshorecouple8709 7 лет назад +4

    Man, I would love it if you went back to some of the earlier episodes. I'd love to hear your thoughts on the gravity well with Miller on Ero's or the slow air escape on the Donnager in the first season. One question tho. Are you sure that was Europa? I thought it was Enceladus.

    • @warp8368
      @warp8368 6 лет назад

      It is Enceladus. Europa doesn't have cryovolcanoes.

    • @Carl_Aznable
      @Carl_Aznable 6 лет назад +2

      Enceladus is a Saturn moon

  • @genius27641
    @genius27641 7 лет назад +5

    I'm glad one of the writers addressed some of the scenes in this episode. It was a cool scene and Cas is a great actor but the scenes felt forced. It didn't fit the feeling of the show and was probably the scene that took the most liberties with science (not including magic engines of course). The author's statement however really helps to not let it spoil my expectations for the future of the show.

    • @LetsDoTheScience
      @LetsDoTheScience 7 лет назад +2

      I agree, it didn't fit. I just chalk it up to them trying a different style.

  • @leighrussell6083
    @leighrussell6083 4 года назад

    in the screen graphic at 0.25 why is there a map of the UK superimposed on the display?

  • @geraldwatts5492
    @geraldwatts5492 5 лет назад

    1:56 You mention the acceleration due to gravity is "9.8 meters per second"
    Surely you meant 9.8 meters per second squared or m/s/s, not sure if you forgot to leave that out or decided to keep it simple for the audience.
    Good video overall, thanks for sharing!

  • @chaosconspectus
    @chaosconspectus 7 лет назад

    are we taking into account, what would take our computers weeks to do would only take theirs (200 years in the future) a few minutes?

  • @apfunk42
    @apfunk42 7 лет назад

    I enjoyed this discussion and reading that blog post as well. I totally agree with compressing time for the sake of drama, and I guess compressing distance goes hand in hand with that. But whenever I see multiple planets or moons on screen at once I find it jarring. It's also common to show views from the surface of a planet or moon where another planet or moon fills the entire sky. Obviously this doesn't match my experience with the Earth and the Moon, but are there any realistic scenarios involving such apparently close proximity? I would enjoy a standalone episode discussing which sci-fi shows and movies get this right (or least wrong). #pizzaparty

  • @stefang5639
    @stefang5639 7 лет назад +2

    I think flying foxes (megabats) or small monkeys would make a lot better pet in low gravity than dogs.

  • @Generalkidd
    @Generalkidd 7 лет назад +4

    I'd suggest doing Stargate SG-1 but if you want to do something more current, perhaps a movie like Interstellar, Arrival, or even Life.

    • @varun009
      @varun009 3 года назад

      Arrival was good. Interstellar isn't about the science.

  • @Myo24
    @Myo24 7 лет назад +1

    Any star trek, star wars, or sci if movie would be cool to do. What about video games like mass effect?

  • @mbe102
    @mbe102 7 лет назад +1

    Boo ya! Back for another. I think Let's Do the Science of Arrival would be pretty fantastic! #PizzaParty !!!!

  • @RHButler22
    @RHButler22 7 лет назад +2

    I don't know about pets going along. Resources are always important and pets are just another drain on that resource. I imagine it would be, much like it was for Holden, artificial. Humans only need a perception of contact with someone/thing other than themselves for extended durations. Holden talked with the ship, and in essence, it became something real for him. Think of the robots from Interstellar, TARS, even those are something that could take the place of pets. Basic ai's might be the answer to help future explorers. #pizzaparty

    • @miles2378
      @miles2378 5 лет назад

      Didnt julie Mao have a robotic hampster?

  • @thakillman7
    @thakillman7 7 лет назад +1

    Nicely explained.
    Yea i think this is the big downside of TV, it's very visual whereas making sense of the solar system isn't possible with visuals. it's too big to show planets relative to each other (without graphs).
    Life would certainly find a way out there. We've looked at all sorts of places on earth and even in freezing and boiling water we found life. Microorganisms can survive in the harsh environment of space, so we're definitely not gonna keep it clean.
    However, advanced multicellular life would be really hard to maintain in space because they are more vulnerable to radiation etc.

  • @mjk9999
    @mjk9999 6 лет назад

    I know you're looking for current shows but I'm re-watching Stargate SGU. As I run through the episodes, I am more and more disappointed that there was only two seasons. That being said, I think this show can provide plenty of fodder to geek out on. What do you think?

  • @Yora21
    @Yora21 4 года назад

    Partially right, but actually wrong:
    Yes, as you are getting closer to a planet or a moon, it pulls on your ship and gives it extra speed. But once you pass the planet and start to move away from it again, it still pulls on your ship and slows you down. All the speed you gained from moving towards the planet is lost as you move away from it again. That's basic conservation of energy.
    But, planets also move around the sun at incredible speed, and moons move around planets at very considerable speed. While the planet or moon is grabbing you (both as you approach and move away from it), it is dragging your ship along on its orbit. At the same time, your ship is slowing down the speed of the planet. What you do is to take away a little bit of the planet's orbital momentum and add it to your ship's momentum. Since a ship is much much smaller than a planet, the amount of momentum that the planet loses leads to a loss of speed that is basically undetectable. But the same amount of momentum gives your tiny ship a really big boost in speed.
    Throw a ball against the windshield of a truck that is standing in a parking lot, and the ball will bounce back with only as much energy as you used to throw it. Bounce it off a truck that is going at highway speed and it will get an incredible kick.

  • @roberthaase3173
    @roberthaase3173 7 лет назад +3

    The movie Arrival!

  • @TheDetailsMatter
    @TheDetailsMatter 3 года назад

    I'd like to hear a plausible take on how the incinerator/crematorium chamber used in the #pizzaparty scene could have functioned as depicted.
    As far as recommendations go, maybe you could science the $h*t out of The Martian (2015). Specifically, how does an airlock that has been giving imminent failure warnings for the whole time it takes to grow a crop of potatoes, fail to fail until the instant the director of NASA back on Earth expresses the hope that nothing else should go wrong? Also, how does one Mars Ascent Vehicle, fully laden and carrying an entire crew minus one, lift flawlessly, in the middle of a hurricane, no less, while the next MAV can barely get to low orbit carrying one passenger and having been stripped of all excess weight including its door and windows? And how do you plant a dozen Yukon Gold potatoes and harvest a crop of hundreds of reds, russets, and Peruvian purples (which aren't, strictly speaking, even actual potatoes but yams)?

  • @ouroboros2727
    @ouroboros2727 7 лет назад

    In Aurora, Kim Stanley Robinson argues that bacteria/microbial organisms will evolve faster and will represent an increasing stress on the ecosystem.

  • @hmurdock
    @hmurdock 7 лет назад +2

    #PizzaParty I guess cockroaches would be a popular pet.
    I bet they can survive an hour in vacuum.

    • @LetsDoTheScience
      @LetsDoTheScience 7 лет назад

      There were some studies that put them in the upper atmosphere and surviving for 40 minutes or so. I couldn't find a study of actual vacuum. I'm not sure they'd survive long in vacuum. They don't have lungs and absorb oxygen through their skin, that has pours. I suspect in a vacuum though, it wouldn't be able to keep the water in their body from boiling away.

  • @dennisphelan
    @dennisphelan 6 лет назад +1

    Will we keep space clean? I believe we will take all of our "things" into space with us. We have done a terrible job of maintaining Earth; why would we do any better in Space.

  • @CHMichael
    @CHMichael 3 года назад

    You know there will be cats. Cats are everywhere.
    Look's like the channel didn't go anywhere.

    • @laurenanderson61
      @laurenanderson61 3 года назад

      I know, I wonder what happened to him? These are great.

  • @thorntinio
    @thorntinio 7 лет назад +1

    Space Pets: I'd love the idea of pets in space, and think companionship will always be desired. In The Expanse's universe though, definitely not. Mars is a strict 'all resources into the atmosphere effort' and the Belters being either too far and/or too expensive to get any large animals that far out. (cont.)
    Gravity Assist: I'ts a true shame they couldn't rewrite the scene as he stated in the blog that Shankar posted [goo.gl/YVhE7i], however in reading their thoughts on the "preposterous" mistake, I don't feel agrivated by it at all, so thank you for bringing the post to my attention.
    #PizzaParty

  • @jeffersonian000
    @jeffersonian000 6 лет назад

    Have you considered the show Dark Matter? I found it to be very ground sci-fi with an odd focus on real physics.

  • @Kaneisback2
    @Kaneisback2 7 лет назад

    Check out Dark Matter. Similar to this but lower budget, still good though.

    • @LetsDoTheScience
      @LetsDoTheScience 7 лет назад +1

      Thanks. I hear great things about that show. Will give it a view.

  • @seankavanagh3742
    @seankavanagh3742 6 лет назад

    Keep up the good work # Pizza Party

  • @robmuzz
    @robmuzz 4 года назад

    A pet Dolphin would be great in zero G!

  • @DroneMee
    @DroneMee 5 лет назад +1

    Imagine cats evolved to be optimized for low g.

  • @lamer5799
    @lamer5799 5 лет назад

    think birds or some other flying animals will be best suited for space pets.

  • @mjsoukup
    @mjsoukup 6 лет назад

    Dave Lister’s cat. That is all.

  • @R4Y2k
    @R4Y2k 6 лет назад

    Well, in fact, Roci did that herself :P

  • @freeisalwaysme
    @freeisalwaysme 7 лет назад

    How about dark matter?

  • @BenFredericson
    @BenFredericson 7 лет назад

    Could it a pizza now. A party pizza.

  • @Subhazard
    @Subhazard 7 лет назад +1

    Pizza party!

  • @boobookittifukk
    @boobookittifukk 6 лет назад

    #pizzaparty ^_^

  • @LordCalidor
    @LordCalidor 7 лет назад +1

    Yeah this episode is probably the least scientifically accurate so far in the show, but still awesome nevertheless. What it lacks in Science, it makes up for in Fiction.
    I'd like to see your analysis of Life, Arrival and Interstellar, recent big movies that are probably most scientificaly friendly.

  • @neilwilson5785
    @neilwilson5785 5 лет назад

    Oops, #pizzaparty

  • @DavidOlver
    @DavidOlver 5 лет назад

    pizzaparty

  • @peterkindermann3590
    @peterkindermann3590 Год назад

    Ü

  • @istvankundi1297
    @istvankundi1297 6 лет назад

    I am taking it back to the argument betwenn that belgian priet and the real scientist and its like this: the universe was created by a huge black hole or white hole so black won because why we stopped expanding right?

    • @istvankundi1297
      @istvankundi1297 6 лет назад

      do if it would be a whit and a blacck than

    • @istvankundi1297
      @istvankundi1297 6 лет назад

      would mean the antymater collapsed back so thars when fisrst full above ligtspeed stopped

    • @istvankundi1297
      @istvankundi1297 6 лет назад

      so we still have weight rigt?

    • @istvankundi1297
      @istvankundi1297 6 лет назад

      im like yea but its not what we think of az strange

    • @istvankundi1297
      @istvankundi1297 6 лет назад

      because we descovered higgs first

  • @dXXPacmanXXb
    @dXXPacmanXXb 7 лет назад

    The Slingshot scene was bullshit

    • @Mcboss-bw4rh
      @Mcboss-bw4rh 7 лет назад

      ok its called science fiction

    • @Pandzikizlasu80
      @Pandzikizlasu80 7 лет назад

      dxxPacmanxxb Scheme of slingshots is bad, but idea is ok. Far from Jupiter just a small burn could low periapsis into wellwalla of inner moons, then some decelarating slingshots - in front of big moons and only what is left is sitting down on Ganymede - a real problem for thrusters. Another problem is time of jurney, it will probably take earth months. (sorry for bad beltalanga ;)

    • @ReddwarfIV
      @ReddwarfIV 7 лет назад

      "Welwalla" means "traitor", perhaps you meant "gravity well"?

    • @Pandzikizlasu80
      @Pandzikizlasu80 7 лет назад +1

      ReddwarfIV Sabaka! Taki beratna ;)

  • @mihugong3153
    @mihugong3153 7 лет назад

    Go breed some space dogs already!

  • @JinKee
    @JinKee 6 лет назад

    Will there be herpes in space? Inquiring minds want to know.

  • @connorhalleck2895
    @connorhalleck2895 6 лет назад

    I don’t like pizza