NASA deep space exploration: Jeffrey Rusick at TEDxElonUniversity
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- Опубликовано: 30 июл 2024
- In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x = independently organized TED event. The TED Conference provides general guidance for the TEDx program, but individual TEDx events are self-organized.* (*Subject to certain rules and regulations)
Jeff Rusick currently works at the NASA Glenn Research Center in Cleveland Ohio for the NASA Radioisotope Power System program that provides advanced power generators for deep space science missions, including the Mars Science Laboratory, which landed the Curiosity rover on Mars in 2012. The Curiosity rover is powered by a Radioisotope Thermoelectric Generator (RTG), which provides approximately 110 Watts of power to the rover day and night, using heat from the natural decay of (Plutonium) Pu- 238. Jeff is working on an Advanced Stirling Radioisotope Generator (ASRG), which will be 4 times more efficient than the current rover RTG for future NASA missions. He is also the NASA Product Assurance lead for the ASRG project. Jeff graduated from Miami University in 1974 with a BS in Physics and went on to Ohio State to receive his MS in Nuclear Engineering.
jeffery has an awesome tie!!
Great information. I am glad some people are trying to figure out how we will go deeper into space!
I think this was a GREAT talk. He was really informative.
2020 bois
John Glenn's orbit; I was in 6th grade too. Moon launch, 22? So we saw all the historic early landmarks. (Saw Sputnik fly over age 10.
Would freon make for a good propulsion? I know that when an air conditioner is broke open, the freon seems to take forever to empty.
NO. The impulse would be less than 100 seconds while SpaceX's engines get around 350 seconds. NTR's can get 900s and ion engines are weak but get over 2000s.
woud a water lock work where there is water in between space and the crew
thehystericalpancake , yes.
Water has lots of lovely hydrogen, which is good at absorbing radiation.
@@massimookissed1023 heavy water specifically or deuterium
It's Not If ,"It's When !
I can't wait till 2020
Branch out . Incorporate Now ! offer incentives .
well here it is
@@bigguy6718 and it's going pretty bad. We cant fight one damn virus, leave those technologies which seem far fetched for us to even make.
Might just be me but the problem of deep space travel seems to be 'too much energy' in the form of radiation and 'not enough energy' in the form of propulsion ...
check conversations
Personally I feel if we were able to master some sort of laser beam/light propulsion system, or even something like the EMDrive that uses microwaves to generate thrust, we'd be good to go for "deeper" space exploration. I can't say how far exactly or how quickly, but I do think that we shouldn't push these ideas aside, and really look into these as sources. If we could get some sort of light propulsion especially, it was drastically change the game. Light is something very easily generated , quickly replenish-able, and really help send us further into space. Of course, now comes in all the other hundreds of thousands of set backs and concerns, lol. Even if this was perfected and proven to work and get us further and faster, we'd be just getting started and no where near going. We'd first have to test a ton of research, engineering, and testing, then those would basically be sacrificed, but at least we'd then get a glimpse at what we need to do to safely proceed. What obstacles, etc.
+Brianna Gordy EM waves have no measurable mass, therefore they provide no thrust. With no propulsion you are just a satellite sputtering out waves that CANNOT make you move anytime soon.
+Jacob Gibes I think Briana is referring to that odd propulsion system that has been proven to provide trust ... I guess you are referring to the low amount of actual trust produced from it... I think that it may not work for ppl.... but ratter for cargo.... so this cargo could be sent ahead of the mission where the ppl go... yet they all get to the destination at roughly the same time
Polycarbonate has a glass transition temperature of about 147 °C (297 °F). Keeping in mind that radiation travels best in a vacuum, please explain how the sun's radiation doesn't melt the polycarbonate visor on the astronaut's helmets.
Norma Rae , because space is f_ing cold.
For something to be heated by the sun's radiation, it needs to *absorb* that radiation.
Visors typically transmit or reflect radiation, so don't absorb that much.
Radiation is not as much of a big deal as Jeffrey makes it out to be. You actually get less radiation on the surface of Mars then on the ISS. It's just that the ISS numbers were shown for only 180 days and Mars for 500 days.
+SpaceSapian This is true, but I think he might be referring to the actual journey to Mars.
+SpaceSapian Please tell me you're not serious right now. The ISS is within Earth's magnetic fields which provide it with much more protection than the surface of Mars. Mars, on the other hand has no magnetic field left after , what NASA has confirmed as the sun diminishing the atmosphere and magnetic field.
+Jacob Gibes good question. There are two major types of space radiation: that which comes from the Sun and that which comes from the cosmos. The radiation that comes from the sun is very low energy and relatively easy to shield with a small amount of aluminum. The radiation which comes from the cosmos is incredibly hard to shield and is much higher energy. The reason for this is simple, cosmic radiation are the leftover bits of supernova other highly energetic things that happen throughout the Universe. The Van Allen belts barely block the cosmic radiation. it takes the full density of our atmosphere to block the cosmic rays. in fact itis cosmic rays that are responsible for things such as Carbon 14 dating as even our atmosphere lets some of that radiation hit terrestrial carbon on the surface of the Earth. NASA astronauts do not get shielded from cosmic radiation but do get shielded from the solar radiation by the Van Allen belts. Feel free to ask more questions.
The sun only emits keV to MeV scale radiation. Galactic cosmic rays are around 1000 times more energetic in the GeV scale.
Is cosmic radiation so small it just passes through the body? Has there been experiments on animals with cosmic radiation and if so what was the results over time?
Why do the pictures of the planets always look fake???
how should they look? how would you know the proper look from outer space?
@@rogue277 ummm I would think they look real like the ones of the moon and earth... helllooo... you want to act sarcastic well there's your sarcastic answer... people are so wack these days... so negative... you had to answer like that huh... wooowww... wonder how many negative comments youve left not only here but anywhere you possibly can in cyberspace... you probably talk like that to your family too... Your screwed up haha... you can tell im fed up with negative huh haha... sorry I just had to speak my mind and let this off... peace love and happiness to whoever you are and those around you... spread joy and if you have a question or answer that your gonna be rude or just sorry about try to think twice and be nice playa... haha
*If we cannot travel into deepspace because van allen radiation belt - dangerous particles, so why astronauts 1969-1972 has no problem with it ??*
The deadly dose per year is 5 rads, the Apollo astronauts only received between .16 and 1.14 rads. Not sure what your point is or why you are implying there is some conspiracy about the Apollo program…
I think developing some sort of force field will be the answer. Is there a way of altering a magnetic field in ways that could deflect certain particles? Can a magnetic field be altered to control paths of particles? I feel the key is finding the particle of interest and finding ways of deflecting the particles or absorbing. If particles could be absorbed at a different part of the ship they could be discharged in a different direction. Not only if there is a way to generate some sort of field could it help protect a ship but also could be a vital tool countering a Nuclear attack reflecting particles toward space. One problem with this I feel would be the needed power source to generate the energy needed to do this.
Ok Greg. Ok.
you know magnetic in all planets are so different the G force and molecular are over G=30.M to M=0.00 is the same ^here earth * us vulumen .
if wee can separate vulumen G00 with M4.8 /3 wee even able to make fly cars or anything wee wan
Staying under ground can help against radiation. 1-st send self replicating machines with a couple of people to an asteroid. People can supervise machines until they build big ships with reactors and good protection against radiation. Then further travel to giant planets are possible.
തെങ്ങിന്റെ ഓല ബെസ്റ്റ് ആണ് റേഡിയേഷൻ കൊറക്കാൻ
I know what we should do to solve the problem of not enough solar power in the outer solar system; however it involves sacrificing the beautiful gas giant Jupiter, and of course its moons. Though if we found a way to do this we could multiply the lifespan of our star. The idea is to somehow relocate some hydrogen from the sun and place it in Jupiter until it becomes a brown dwarf. Yeah it's impossible at the moment, but there's no reason to think that it will be in the future; as long as our civilization and its technology progresses. Or we could harvest a sh!t load of solar power and precisely lazier it from and to satellites using the correct frequency of electromagnetic radiation. It would be less efficient, but would work with a lot of time and power from the sun.
exploration enough. stop.
collect debris.
restart with space rules.
NASA: _We need kids to teach us how to space, 'cos we spent all the money on the ISS which taught us nothing._
Sweet star wars tie
When it comes to the radiation problem, what about mimicking the Earth. Magnetic field just like the Earth! Won't that work?
this topic is interesting but i'm sorry i cannot listen to this guy talk. this is literally how i must looking when i speak in public bc that scares the shit out of me lol
9:15 BREAKING NEWS: New Starship for Mission To Sirius Requires Vehicle To Be Encapsulated By A Heavy Water Blob At Least 20 Meters Thick, Says Scientists From NASA.
great talk but,why bother going on mars?mars doesn`t have magnetosphere,we can not colonize mars
All Lies 👎
They should never tell him that even the ISS is fake. He is sooo into deep space...
POS