Can Nuclear Propulsion Take Us to Mars?
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- čas přidán 16. 04. 2021
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Writer/Narrator: Brian McManus
Editor: Dylan Hennessy
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References
[1] voyager.jpl.nasa.gov/frequent...
[2] www.alumni.caltech.edu/distin...
[3] voyager.jpl.nasa.gov/mission/...
[4] voyager.jpl.nasa.gov/mission/...
[5] www.space.com/11337-human-spa...
[6] mars.nasa.gov/all-about-mars/...
[7] Rocket Propulsion Elements
[8] www.nasa.gov/centers/glenn/ab...
[9] arc.aiaa.org/doi/10.2514/1.B3...
[10] www.jpl.nasa.gov/news/nasas-d...
[11] www.nasa.gov/feature/glenn/20...
[12] www.nasa.gov/directorates/spa...
[13] www.space.com/nuclear-thermal...
[14] www.lanl.gov/science/NSS/issu... & www.sciencedirect.com/science...
[15] descanso.jpl.nasa.gov/SciTech...
[16] www.nasa.gov/directorates/spa...
[17] academic.brooklyn.cuny.edu/phy....
[18] core.ac.uk/download/pdf/10557...
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Woops. The outro audio revealed Real Sciences next video by mistake. It's gonna be a banger though, ye should subscribe.
cant wait!!
Doesn't matter. This channel has extremely high quality! Keep it up!
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Hey subject zero uploaded a similar video 2 hours ago, was this a random thing or a collab
I'm a 72 year old retired mechanical engineer and really feel lucky to have lived during the time we began to explore space with methods other than just telescopes. Just hope I live long enough to see a manned mission to Mars. Fingers crossed! Having just discovered your channel, I'm doing a little binge watching. Keep up the great videos.
2 caveats here. Nuclear propulsion only gets a bunch of doomed dudes there. There is no remotely feasible return ticket to ever get anything back from Mars surface. There is nothing to be done a robo lander hasn't already done in confirming Mars to be a boring piece of barren red rock flying through a vast nothing of space. Short of interstellar antigrav drive and antigrav shield there is nothing left worth doing in space. Chances are high that 6th mass exnstinction induced by climate crisis gives us no chance to ever sttle anywhere habitable in space. This is called the Fermi Paradoxon. Pls. stick with what we have learned from exploring space. Consider that any rocket launch blows 166 megatons of CO2 into the atmosphere. For what gain to make humanity survive and improve our lives? There Is No Planet B. We are stuck here for 150+ years until we can crack our heads for real about antigravity tech. We got to fix a gross mess in our atmosphere and if we fail we are doomed to stay and go extinct. People need to be educated about that urgently. Anything that stoops being scientific is just a cargo cult. Google it where the landing strip is levelled here and the tower raised for someone praying cargo to be delivered by some magic.
Fingers crossed for you sir, I hope you’re doing good.
youll see it for sure
I hope you stick around as long as you like, and while it's clear there are massive unresolved problems with Mars as a colony world, my attitude is pretty much that we have to do such things eventually, and given the incalculable benefits which the moon landings produced (not just tech, but most of all INSPIRING thousands of young people into becoming various types of scientist/engineer/etc --- if we could quantify the benefits of inspiring those generations I reckon it would be beyond our wildest dreams.
This sort of thing costs peanuts right now (few % for the USA, which spends trillions on stupid wars at the same time as claiming it can't afford giving people health care and education) compared to the potential.
@@teejayaich4306 Yeah, we learned about climate crisis from SpaceEx Satellite tech. When learned Moon is a dusty barren rock, where the dust is so aggressive you can't do anything on it.
We send a rover to Mars and learned it is a barren rock as well. Unless someone understands gravity and builds an interstellar faster than light antigrav drive we are on Earth as Planet A.
If you ask to waste 16 Megatons for a liftoff, you have to explain the true benefit of a manned mission to Mars over the downsides. Fact is, you can not
get back. No lander can get back into orbit w/o fuel production n Mars. A place where you have neither fossile fuel or water. Nothing Mars would be ever sustainable. Nuclear terraforming is a very remote option. It would still ask to live under substantially different gravity.
Sorry, but if you claim "science" you are not supposed to wander off into some delusionary dreamlands. People in the US always dream about a "New Frontier". That's culture mumbo-jumbo not science. The is insurmountable physics in the way where we need at least 150 years to come up with solutions. Solutions that need another league of understanding space and physics of gravity. Means if grvity is particles or rays and how fast "instantaneous" is. If gravity is a push or pull force in it's "field". What a quantum of gravity is?
If you can answer any of these you can shield a Mars Mission modules and colony ship from microparticle impact accelerating a vehicle to light speed.
There is amazing talks about the challenges of Mars missions. Maybe entertain yourself with some good science and put thought and creativity in a productive direction for humanity.
Hey Brian,
I'm just a rocket engineer telling you that you did a fantastic job on this video. You explained everything perfectly and all of the benefits and drawbacks of each approach. You should be proud of this one!
When a literal rocket engineer tells you that you did a good job, you know you are doing a good job.
@@PresidentialWinner Well, the reference to the "dark side of the Moon" made it decidedly Un-perfect---especially when it shows that side lit up by the Sun.
@@jelink22 stop nitpicking
Hey question as a sudden thought on storage. Couldn't we use water to make Hydrogen space stable and split the fuel in transit using electrolysis to split the water into its Hydrogen and Oxygen forms giving us 66.6% Hydrogen fuel and 33.3% Oxygen? Using oxygen for air or a hybrid fuel source for extra thrust, while spliting off the hydrogen to another container to be used short-term. Or something along those lines.
@@lordofashesspark6863 Electrolysis need a lot of electricity (the same reason why hydrogen powered cars aren't popular in Earth, majority of our electricity is still supplied by fossil fuels, thus negating the supposed green-ness of hydrogen), something that is rare in space
I have always dreamed about us setting up a secondary launch point from the moon. Where we use a large portion of fuel to escape the earth. But, then refuel on a base at the moon and go from there with more fuel then we've ever had and the moon has way lesser gravity so it'll make this super effective towards efficiency.
More likely we would use an assembly station in Earth-Moon orbit at L5 or L6 to assemble the spaceship from parts made on the Moon.
@@david2869 I think so, too.... Though it is a long way until then and we would probably start with a facility on the moon as it is easier to build and operate as far as I know
You might as well launch two ships and refuel the first one with the second's tank. That way you don't have to spend extra fuel to launch from the moon. That is unless you find a fuel source on the moon.
If there would be fuel on the moon it would be a great ideea. If not, transfer of fuel in orbit is obviously more efficient. And with nuclear power, it makes more sense to use gases that can be scooped from orbit of a gas giant. A nuclear refuel spacecraft could go into the atmosphere of a gas giant, compress the already freezing dense gases and bring them as liquid to an orbital refinery. Ocean voyage out there, no land if you want to traverse the space in shortest time
Yeah that's the artemis plan unfortunately it will take until like 2040
Ion propulsion looks like it is straight out of science fiction. Amazing! So cool to see that it is probably gonna be a big part of the future.
Just imagining a large space craft slowly drift with ion thrusters only to then fire up chemical combustion engines in a giant explosion in order to decelerate close to a celestial body has me creaming myself :O
ayo
HUH? 📸📸🤨🤨🤨
video proof?
I believe you could use the ion drive to accelerate continuously through the first half of any journey and then rotate the exhaust nozzles 180 deg to thrust in the reverse direction through the last half to slow it down.
It is science fiction.
Pretty amazing for a species that just figured out flight in 1903.
...and will soon make itself extinct...
@@MrSvenovitch humans have no respect for nature ...trying to rule that never gonna happen ....our planet is so complex and special still we keep abusing it .Colonizing Mars after destroying Earth ...running away from facing the destruction we have done .Well we can go to the end of the universe still as humans will fight till the end :(((
@@MrSvenovitch No, no it won't
...and all thanks to Santos-Dumont, the guy was a genius.
Rockets were invented long ago. Fireworks that is. Missile rockets were invented few hundred years back with the Mysore rockets followed by Congreve rocket.
The only engineering channel on youtube with references.
The only “real” engineering channel
@@MrGtubedude that unfair to the other guy like practical engineering XD
Do you know about Shri Acharya Prashant? He is a Vedanta teacher!
Honestly one of the only channels in general that have references for science 👏🏽👏🏽
@@USSAnimeNCC- him too lol, but hes the only "practical" engineering channel xD
They might be able to get around the leakage issue with liquid hydrogen by liningg the interior of the tanks with multiple layers of graphene and holding it at a static potential to repel the attoms although that comes with other challenges.
Me, who got a B- in Chemistry: *scratches chin* Ahh that makes sense.
I was just about to get up and actually do something today.. that’ll have to wait 20mins
Same here..
Don't go down the CZcams spiral though, it's pretty easy to waste the day
Oh, I thought it was only a 10 minute video. It was so interesting it didn't seem that long.
😂
I feel silly for not knowing ion thrusters are real. That blue glow is so eerie, but so beautiful
@sokin jon Random fact unrelated to the comment above but, neat.
And so weak
I only knew about them because they came up on one episode of a show on discovery channel when I a child 20 years ago. I could've easily missed that one episode and haave the same realisation that they are real.
I learned about them from ksp(a rocket building simulator)
Wait till they build a REAL ion thruster. At the moment we only have giant particle acellerators on earth. But in space it would be a new chapter.
I just wanted to let you know that your videos pulled me out of a dark place of looming midlife crisis in my early 40's. I've started using Brilliant so I can be better at Maths and use it in my current CS degree with Machine Learning and AI. Thanks a lot! Greetings from Dublin!
Awesome man!
Chin up Sublick.!! 👌💯👌😜
how is that going? I've considered using Brilliant as well; any comments?
@@canobenitez If you are struggling to understand books or lectures, Brilliant is good to make you understand things on a more intuitive and practical layer. However, I don't use any of them in isolation. I use both Brilliant and formal lectures/books.
are you the type like me that will totally refuse to start pronouncing uranus in order to not make it sound like "your anus"?
Hats off to the explanation!, All the complicated concepts in such simple explanation is an work of art... Seriously impressed by the explanation, Keep doing this...
These animations seriously keep getting better and better
No matter how finite fossil fuels are energy-dense and traded today cheaper than water, they are not plenty enough to propel humans far in the space. Thank god we still have some of them to let us driving on the ground;
"No energy system can produce sum useful energy in excess of the total energy put into constructing it.
This universal truth applies to all energy systems.
Energy, like time, flows from past to future".
I live in Karachi Pakistan and I like your comment
@yuitr loing I live in Karachi Pakistan and I like your comment if you don't mind
@@sayyamzahid7312 it's fine friend, go ahead
they have probably learned from skill share
Looking at this video now makes me wish I could have seen it when I was doing physics in highschool... just the way the equations relate to the actual real world applications is just so fascinating
All make believe Larry.
Well if you could not imagine in high school that the equations are a language to describe the real world. Physics is not your thing.
@Golden Age Creation um, what does that mean? some of it is familiar to me but why did you but this comment here?
one thing i always said is that they don't teach you useless stuff in school. they just don't often tell you how useful it is.
I agree! If this video had been out when I was in HS, I would've probably pursued a career in science. I've always loved Star Trek, growing up! :)
I'm in love with this channel. It's so easy to understand and encourage to learn more
Thank you so much
Great video. I've always wanted to put myself on a learning path to better understand these questions, so took you up on the Brilliant offer. :)
So weird to hear Gary’s name. His family lived in our neighborhood when I was much younger. I was close to the same age as his oldest child. We knew he was involved with “space”....but it was years later before I understood the true impact of his accomplishments. He was an incredible pioneer.
if you still stay in contact with him, you should try showing him this video.
He was the guy who used to bring you toilet paper. You will never forget him.
If anything, I’d be offering as much TP as he requires.
@@kennarajora6532 why would he care that his name was mentioned in a CZcams video, no offense to Real Engineering; the guy is like a rockstar in the space business.
czcams.com/video/WxYH5CXbpYA/video.html
Any problem in the world: exists
Nuclear Energy: Sounds like a job for me.
At the end of the day nuclear energy is what made this universe and still to this day keeps it moving.
@@arnavsadhu Yep even the stars burn because of nuclear energy.
@@arnavsadhu Actually that's nuclear fusion energy which is different from nuclear fission. Planet are fission reactors because they are too small for fusion and stars are fusion reactors.
Same with Starship, graphene, aerogel
@@KRYMauL the point is, it's nuclear energy. The sun is a nuclear reactor. A fusion reactor. Those of us in the know , know what's what and the differences.
Thank you for explaining how and why things are the way they are because most science videos just give a very dimmed-down explanation that I am never fully satisfied with.
Hi, I really like your proposals for propulsion. My experience was pwr. I often look back on the simplicity of the designs that made them safe. This is a new generation and I hope you have success... I'm gonna stay here on Terra Firma though.
These prequel episodes of "The Expanse" are getting really good!
Ah I see. You're a man of culture as well
I'm not disappointed to see The Expanse reference in the comments. I need a new season so badly.
When is the Real Engineering episode on the Epstein drive?
@@kelzuya Epstein drive didn't invent itself.
@@Rathbone_fan_account did u finish season 5?
1.: You got a new animator or the animator learned a lot
2.: The videos got longer
3.: I like that
(That is true for both the x-15 and this video)
Both 😉. Brought on Eli who is a legend at planes / shape shots and I learned 3D so we now incorporate more of it in the 2D stuff.
@@ekimoleksander6068 how you get such photorealistic results is beyond me and absolutely incredible
@@ekimoleksander6068
Dude
I was thinking about the fabulous animations too!
That was amazing, well done!
@Jorge Diaz
🤦🏻♂️
@Jorge Diaz 🤡
I love it when your videos are just pure science and not the pet theories of someone - great job!
If you love them, surely you want more science-channel, yeah?
What's not to love?
"We, as a species lieft eur meurk on Meurs" God i love his accent! :D
🤣😂😂
First Subject Zero's video and now this, both in the same day, am I dreaming?
I was thinking the same thing
Same. Very interesting...
total conspiracy!
@@Feefa99 your mom is a conspiracy
@@Accept_Any_Bribe ur odd
The 3D models for the Mars spaceship look gorgeous
they do!
The iss is connected to it so i think its really funny
@@joaquinvillanueva2314 oh noes they stealin iss😥
I believe is based in the Hermes spacecraft from The Martian.
@@GBA811 the hermes is just beautiful and cool
Was hoping to see some discussion on Nuclear Explosion Drives, where a small fission reaction explosion is the source of the thrust. Pretty interesting if not exceptionally challenging.
How would that work? you need to eject a lot of mass to create thrust. There is no enough uranium to simply explode and shoot out. Also won't it spread radioactive waste?
@@Ghost_of_Gaby Details, Details...
@@Ghost_of_Gaby It was called Project Orion, and it was cancelled in the 1960s for your reasons and every other reason you can think of. It was a fantastically horrible idea, done before the stronium-90 tooth surveys.
Great job on the video you didn't only show the pros of the nuclear propulsion engines but also the cons which gave me a very good perspective on the situation.
These graphics and sound effects are out of this world (no pun intended).
I really wish I could’ve taken Nuclear Propulsion at my school, but the professor retired the year before I could take it.
you could try to go in the more conventual energy (production) classes and use that as a stepping stone.
oof
Brian, 1st, I love your accent & narration on all your videos. As a former broadcaster, I am attuned to the importance of speech delivery & tone to hold an audience's attention. You've succeeded in giving me an acute interest in engineering that I really never had. So thanks for that. Pure dead brilliant! Lang may yer lum reek!
I like that faster transfer times to Mars efforts are going to make the moon seem just around the corner. Lunar settlement just makes so much more sense. Even an extinction event like an asteroid strike are 1. More easily fought from the moon. 2. Earth more easily repopulated from the moon than from mars. 3. We won't feel so psychologically abandoned being able to see the earth from the moon & vice versa.
Wonderful as always sir!
Do you know about Shri Acharya Prashant? He is a Vedanta teacher!
Check out his channel on CZcams!
@@Hereicome. no
Poda panni
@@earumamaadu aysheri
Hi
I have no idea what this guy is talking about but it was entertaining. This is similar to my infant staring at me in awe as I talk to him about random things.
Me 2
Modern day rockets use fuel(stuff that makes most tracked or wheeled vehicles go room room), hes explaining how this won't be fast enough for us to colonize Mars. Since it may take more than 35+ years, But if we started to make new types of engines(propulsion) its not only faster but less time making it more possible for us to bring life to the planet mars.
@@sinisterisrandom8537 thanks
@vladimir putin is andrei panin jfk is jimmy carter can't even tell if your joking or your being serious if so your an idiot.
@vladimir putin is andrei panin jfk is jimmy carter WAT
Cool video! Although I feel you might have undersold Nuclear Thermal video a little - I get the point, since it's more about the potentials of NER, but NERVA is quite an early design that very much in the lower end of what can NTRs do (even for solid cores!). Not to mention that I feel like if we were indeed going with a nuclear thermal, it'd likely be an NTER instead of a simple NTR, as that can push the exhaust velocities much further into the 10+km/s range, or even NERVA-like performance using more easily storeable propellants.
Timberwind was supposed to be a lot better than the OG NERVA designs. What a shame we never built it.
Really great presentation. I keep coming back to watch this one over and over. In the near future, we'll be adding thermonuclear propulsion to the mix. What a great time to be alive.
These missions captured my imagination as a kid. Now I have 7 interplanetary mission under the belt. You just gotta go for it.
@JD Russell You mean project Starshot?
@JD Russell Do you have slightest idea how massive Deimos is?
Also right now we have 0 space mining tech.
@@ImieNazwiskoOK Ya it'd way more realistic to just try and construct a rotating habitat in Earth orbit and fly it to mars.
@@lurkag2672 But this creates fuel problem (as shown in video)
@JD Russell What?
Stayed 1 year indoors, can definitely handle that trip.
Minor correction: Radiation is not the means of dispersing heat in space. Ablation can also be used, although you'd need an impractical amount of ablative for the purpose you're talking about.
6:08 I think it would be important to animate the charge neutraliser to, otherwise the positive ions would get pulled back and there'd be no thrust
Hohmann Transfer is not the fastest way, BUT the one with minimum energy requirements.
In this context it is since the alternative could take years instead of months to travel
*Me acting like I perfectly understand what's going on but I'm actually a bumbling idiot*
monke
just play KSP, you'd be surprised how much you can learn from it (although fuel storage isn't a real problem in the game)...
Go play some Kerbal Space Program, thatll teach you! :D
(also its one of the best games ever made and everyone should give it a try)
edi: I legitimately didnt see someone else said the same xD
It really isn’t that complicated, nuclear energy makes spaceship go fast. Get it now?
@@thatbuckmulligan do physics in highschool and algebra in maths,you will understand
Well done. I almost understood everything. Will watch again to absorb for further understanding I did receive an A in Physics at Wayne State University Pharmacy school but hey that was 1978. I need a moment to get that part of my mind up to speed. Thanks for your efforts
Propulsion is not the only thing to take care. UFO are using a distorsion and two gravitational waves variable in phase to create a protection field around the ship , which is necessary to go faster than light speed and provide projectile and radiation protection.
It is hard for me to comprehend how brilliant these people are!
I used to feel the same way before I went to university to get an engineering degree. I'm still no rocket scientist, but I can fathom how people are able to develop these technologies. Much is often said about the uselessness of a college degree, but I believe they are still very valuable.
@BlackholeTtson452 It would be possible, if such a project was funded. I doubt it will be, though.
@@Cyberspine, I would say it is not a question of if, but of when. It will be funded, perhaps by private corporations, but it will happen, baring a Earth shattering nuclear war.
Awesome video bro. I would like if youtubers of my country produced videos like yours
I wonder if you could use supercapacitors alongside a ion engine to make a ionic afterburner of a sort. If it's possible it might open up the possibly of being able to use small burn windows with I-engines.
"Nuclear spacecraft."
Ah he's gonna talk about Orion.
"Nuclear-powered ion drive."
I have underestimated you once again, good sir.
Orion: Still worth talking about.
Explain, how anything can break, navigate or steer in a Vacuum. Likewise, explain how the air we breath, is not escaping into said Vacuum. Please, don't spit out the 'Theory Of Gravity', clues in the title, never been proven & only exists in Mathemagics, a non Science 'Abstract'. A Language manipulated to suit their ends. Deal with Objective Reality, use your senses. No rotation, no earth curve & no water bending around a rock, you do not live on the exterior of a Space rock. Grow up 'Condemnation without investigation, is the height of ignorance.
@@uppercut2246 “Explain, how anything can break, navigate, or steer in a Vacuum.” Well, breaking is quite easy. A few explosives here and there and boom. However, I assume you actually meant to say braking, as one would brake a car. Now, spacecraft in Earth’s orbit never really stop moving, as orbiting is essentially falling, except you are moving sideways fast enough to miss the ground. However, they can certainly slow down, and they generally do this by turning around so that the fiery end of the thrusters is pointed at the direction they are moving in, and then turning on the thrusters, accelerating propellent backwards and producing an equal and opposite reaction that pushes them forwards, in this case slowing them down. As far as navigation goes, it’s mostly just a lot of math to calculate how much and when you need to accelerate in what direction to catch up with any given object at some given time, and then waiting for that exact moment and accelerating by that exact amount. Steering in space is relatively simple. On Earth, an aircraft would tilt its control surfaces, using the flow of air to push the aircraft. However, there is no air in space, so instead spacecraft typically use small thrusters located in various positions around the craft to turn and stop turning. They’re called reaction control systems, look them up, they’re semi interesting.
“Likewise, explain how the air we breath, is not escaping into said Vacuum.” Actually, it is escaping into the vacuum. According to phys.org, along with many, many organizations of all shapes and sizes, “Every day, around 90 tonnes of material escapes from our planet’s upper atmosphere and streams off into space.” Of course, your question would then likely shift to “Why isn’t all of it escaping?” I would then answer that question with gravity. Yes, shock, horror, I have listed a theory as evidence! Evidently, you do not know the meaning of a scientific theory, given your comment following immediately after the air escaping one. I believe the word you are looking for when describing something that is entirely hypothetical is, well, a hypothesis. However, the theory of gravity is a scientific theory, and, according to dictionary.com, a scientific theory is “a coherent group of propositions formulated to explain a group of facts or phenomena in the natural world and repeatedly confirmed through experiment or observation.” As such, I feel it acceptable to bring forth the idea that perhaps an entire planet the size of Earth would have a rather large amount of mass, and therefore a sizable gravity well, strong enough to keep most, but not all, of the various gases surrounding it close to it.
However, I am listing all of these explanations with disregard to the fact that you seem disinterested in actual facts and science, as you soon declare that “Mathemagics, a non Science ‘Abstract’” is “A Language manipulated to suit their ends. Deal with Objective Reality, use your senses. No rotation, no earth curve % no water bending around a rock, you do not live on the exterior of a Space rock. Grow up ‘condemnation without investigation, is the height of ignorance.’” Shockingly, the flat Earther who proclaims that all should use objective truths and their senses, condemning all their enemies for “Condemnation without investigation”, believes that math, or as you call it “Mathemagics”, is some part of a conspiracy, hand crafted by some mysteriously powerful yet strangely incompetent They. It is also equally shocking that he believes that our senses contradict the Earth’s curvature, when really they only serve to prove it. For instance, were I to stand on the top of a nearby mountain, and then plant a decent telescope upon it, I would not be able to see the skyline of New York or Los Angeles, and most certainly would not see Beijing or Moscow. However, were I to visit the ports of one of the former and watch the ships by the horizon with said sufficiently powerful telescope, I would see that as they go over the horizon they would disappear bottom up, and vice versa, almost as if we were both on a curved surface, and now the surface of that spheroid was obstructing my view.
@@uppercut2246 I love you people you ask a question and then you say don’t answer with the answer your quite idiotic and ignorant you think that you are so intelligent when people who spent their whole life studying, confirming, and finding new results are wrong. Maybe you should stop being ignorant so legitimate tests yourself understand the mathematics and science behind these things and then you can start acting smart
I prefer nuclear weapons powered spacecraft
Thanks for giving me a rudimentary understanding of this subject without making me feel stupid. I've been alive for the entirety of human space exploration, and wish to be alive for the first humans to Mars. I'm already 62, though, so I guess we'll see how that plays out.
Misterrickschannel,
I’m a retired Engineer, and 81y. Imagine my problem at living long enough to see this through.
we really need to finish figuring out fusion, alot of this could be solved by that kinda power
in fact the next steps in our journey amoung the stars probably rely in fusion power
Another great video to put me to sleep, very quiet music in places, no sounds of any sort and very dull speaking with absolutely no excitement or enthusiasm. Perfect
You know the videos are good when your engineering teacher recommends them to you
Is CZcams your engineering teacher?
Ya - you wanna believe everything your Teacher says. You were taught by Teachers - who were taught by Teachers - who were taught by Teachers - who were taught by Teachers - who were taught by Teachers - who were taught by Teachers - who were taught by Teachers - who were all taught what and what not to Teach you.
@@altheeathoone that’s the beauty of language and education baby!
u are the Apix preadator? our would is o fire, that is why they have wars?
Ok enough inspiration for today, now back to circuits analysis.
Thanks for the video! The Flandro dude started the most effective space exploration program in human history. Thanks!!!!
Humanity is amazing! Crazy how we can get this kind of education by just CZcams.
Yes it can, I confirmed this in Kerbal Space Program 😁😁
You mean only with mods.
In vanilla it takes you to Duna
@@ilikeyourname4807 use RSS+RO then
@@ilikeyourname4807 haha you got me there, duna it was
Can't wait until KSP 2 is released
@@martiddy me toooooo. I think about it a lot
13:20 problem with Helium is that until we literally start mining gas giants it is far to precious to use in such applicatons, as opposed to commonplace hydrogen.
There is Helium on the moon and a lot of it is Helium 3, fusion reactor fuel.
@@MichaelClark-uw7ex How much of He-3 exists on mars?
@Andre Hpunkt The moon is not hollow, it is made if light silicates, aka rock, not much metal.
It would be pretty tough to wreck a 2100 mile diameter rock ball.
@@pranavkondapalli9306 Not much, less than the moon, it would be easier to skip Mars and just skim it from the upper atmosphere of Jupiter.
Dosen't the moon have a large amount of helium deposits?
The funny thing is that the highest possible specific impulse is an engine that most people have at home, a laser pointer for example, unfotunatly the flow rate is of course pretty low as well, but at least its efficient
wow i totally forgot how essential the planet alignments were to the gravity assist of the voyagers lmao
love yr videos thx 4 sharing
How do you put out so high quality content in just 2 weeks!? I love these videos, they are so informative but still interesting. Keep up the great work!
It’s more like a month. While the video is in production I’m writing the next one.
Many of the more educational oriented channels have insane video output, kinda making me jealous about their work ethics ^^
@@RealEngineering I read this with your voice in my mind.
I like how the mars vehicle shown is literally just a Martian Hermes attached to the end of the ISS
Hey Brian,
I had always wondered why we didn’t have nuclear propelled rockets as well since I work as a nuclear operator and see the huge benefits of a long lasting fuel for space exploration. But working in the industry for a few years now and seeing how the US designs and operates its reactors, I don’t think this would ever be possible. I’m not going to get a whole lot into it just because what I’ve learned is technically classified, but there’s a lot of good information put out by the department of energy. Especially when it comes to material sciences, studies on brittle fracture and thermal limitations of materials if you’re interested. But the video itself was super informative and really got me thinking. Plus wasn’t boring. You made science look cool!
Science is cool!
@4:10 - The diagram indicate raw oxidizer and fuel being fed into the turbo pump assembly with no indication of combustion taking place... but then venting exhaust. kind of a basic miss there.
Only 20 seconds in and already blown away by the graphics in this one
Is that Spaceship a original creation? If yes damn you definatly nailed that!
I thought it looked a lot like how the Hermes from The Martian is portrayed in the film. At least the back half does.
@@kerbalaerospacelabs3445 The front is literally the ISS sideways.
@@kerbalaerospacelabs3445 so far I have only read the book. Is the movie good aswell?
@@birbstrike2085 its one of THe best space movie you should definitely watch it...
It's a kit bash with a few real and a few fake ships.
Way back in the Gemini program, rockets were launched into orbit before the Gemini capsule so the in-orbit capsule could dock with the rocket and achieve a higher orbit by firing the rocket. A similar concept could provide a way to give more thrust for departing from earth orbit and to slow down at Mars.
If there's one thing I've learnt about modern rocket development is that you really don't know till you try. It would be great if there was more funding for ideas like this
I think what the world lacks is IDEAS
Not money
People need cheap and original ideas.
These guys do a great job. The way they explain and give references make their videos so complete. People like me need this channel. 🚀🚀🚀
You can explain these topics so clearly, I wish my school teacher was half as skilled as you. I haven't even studied this part of mechanics that well yet, but was still able to understand most of what you said reasonably well.
We need to setup and standardize orbital refueling. Use traditional rocket fuel to lift ships up and into orbit. Then switch to a more efficient propulsion system for zero resistance thrust in space.
We also need large ship warehouse/repair facilities that stay in orbit to service ships, rockets and shuttles. Bring back the space shuttles but keep them in orbit as workhorses. Will make repairs on space stations, satellites and ships easier. Use rockets to bring astronauts to space. In emergencies the shuttles can still guide back down to earth.
Faster transport times means traveling closer to the sun and not utilizing free return trajectory. If you have a propulsion breakthrough, use it for increased mass.
What a great video! Thanks so much for this.
I love how you explain and illustrate in easily understandable terms, and show the actual equations involved with these complex issues!
So very nicely done! Thanks so much for this!!
Happy I am subbed to this channel for quite some time again. I notice you put a lot of work into this video and I expect nothing less. Great quality: keep it coming!
Just casually wondering how pairs of flywheels would compare to battery’s/ fuel for long distance space travel.
As I expect the mass would double up as reasonably effective radiation shielding, the gyroscopic effect would assist with navigation, the weightlessness would eliminate storage losses while not accelerating & it would be easier to hold a vacuum in space
I just saw my electronic rocket ship, from Christmas 2016, it can hover, cloak, coast around on vtol mode, and fly to the moon and back in a couple hours. Its just permanent magnets, in a torus, with some mercury, with holes opening into a rocket nozzle.
For earth to the moon, it's perfect, but I've made a few other designs since then, made for atmosphere, interplanetary, interdimensional, and time traveling.
My favorite are the throwback combustion based atmosphere craft... you can hardly see the spaceships because we have to ascertain their safety... I had to upgrade the power grid because the ionic discharge causes power surges if the grid is weak....
Literally just started thinking about ideal non-chemical space propulsion methods these past few weeks, great timing to whet my mental appetite, and with such superb detail and panache. Another great video 👍
Love your videos I gain so much knowledge and I appreciate your work
I have some general impression that exploring space evolves into exploring cool presentations of possible future missions.
Excellent work. Can't imagine how long this took too make.
you explain these confusing topics with such simplicity and accuracy. thanks so much great video
I’m blown away from the quality of this video... hats off to you Irish sir !
Dumbing down rocket science to the point where a simple guy like me can understand it is a feat on its own !
Could a hybrid chemical/nuclear thermal rocket be feasable if you just burned the hydrogen with liquid oxygen after it leaves the reactor? Or maybe a mixture of liquid hydrogen and oxygen could be pumped into the reactor instead, which will ignite when it gets hot enough?
Or maybe it could be like an afterburner, where a small amount of liquid oxygen is carried on the ship, and burned when high-g manoeuvres are required?
Magnets accelerate subatomic Particles
It sure is fun looking at Model T and Model A rigs as the futuristic crafts they are.
It's a huge feat for us right now, but it is funny to think we'll look at these like the first motorized carriages compared whatever comes in the future (hopefully)
Fantastic content, love the humanist optimistic approach, being positive about our species. Too easy to find negative regressive attitudes from those declaring they're doing the opposite.
In book Mission Saturn, they cooled reactor core by transfering the heat into molten metal. After that they started releasing metal in thin rolls into space to radiate heat away and catch it after all heat was released
liquid metal cooling system could also be conductive so moving it through magnets will create a charge that you can run your hair dryer with, or whatever blows your hair back
I was on an airline flight in the 70s and an engineering student showed me that the senior class project was a magnetically contained Uranium fission reactor with gaseous Hydrogen flowing past it to absorb thr radiant heat. I don't know what casing would survive the neutron flux; maybe Niobium.
Also the Nerva engine can triple its heat transfer by pulsing pressure in the boiling, pressurized Hydrogen. Published in Analog around 1970.
for the ion only approach: why not just take longer to perform the capture burn? slowing down before reaching Mars such that you *can* capture?
Subject Zero Science uploaded a video on exactly the same topic too today.
Both videos are phenomenal!
Please do more engineering videos about space, your work is amazing!
Many cover Space. Wnat to know some names of youtubers?
@@nenmaster5218 i would like to know some
@@spinodino9563 Cool.
@@spinodino9563 Sci Show, Sci Man Dan, Veritasium, Professor Dave, Hbomberguy, i know many.
Say if you want more and/or something specific.
Would a hybrid engine work, where you use incomplete combustion to generate high mass heavily charged particles (instead of pure ions, e.g. carbon-monoxide) which then can be accelerated by an ion drive/rail gun type system to generate thrust (could even thrown in an after burner step to complete the combustion if it helped...)?
great stuff. we really need to examine humans in space beyond the moon. time and distance and velocity and gravity mean nothing if living things can’t live beyond our protective atmosphere.
Great video. Gives a very good bird's eye view of the problem of propulsion in space. I like the hybrid ion/ntr idea. Assuming the long-term hydrogen storage problem can be solved, how long would a non-gravity assisted flight that would go into orbit around Sedna take using such an ion/ntr hybrid? Assume a payload mass of ~1,000 kg. I'd love to see a calculation of a mission like that. Mars is not the only game it town.
hey can you make a video discussing the Northrop YF-23 prototype and explain why till this day people think it was the better than the F-22
The F-23 was faster, has a radical look, and with its complex thrust vectoring just as maneuverable.
I like the F-23 because as a teenager I correctly concluded that the wing shape would reduce drag over that of a conventional swept wing and drew fighter jets with it and would have preferred the F-23 to win but have to admit that the thrust vectoring system probably would not have made it past the cost cutters.
Like a huge flywheel getting a slap to,keep it speed of rotation constant. But in no gravity it would take very lir
1G accel to midway point, turnaround, 1G decel to destination
You should check out the Tintin comic *Destination Moon,* it imagined what a moon mission would look like before the real moon mission happened in real life, and has some neat engineering in it.
I remember now
Do you know about Shri Acharya Prashant? He is a Vedanta teacher!!
@@Hereicome. @Ayush Sinha I'd rather not, either this is some bot or just another account that person is using to advertise their channel, spamming replies is rather annoying and will make people dislike that channel even more.
This message will now repeat.
I was about to quote this comic. Of course, We'll need this tournesolite matter to build the engine next.. Maybe the JPL should contact Sydalvian space agency..
Yes, my kids are reading this at the moment. The rocket is nuclear-powered, and accelerates at 1G towards the moon, turns around halfway and decelerates at 1G the rest of the way. It's a neat idea that lets the crew enjoy earthlike ”gravity” but I imagine the ship's speed would be pretty ridiculous halfway along. A ship able to achieve thrust over a long period of time (subject to supplies of Xenon, I guess) would be able to jump between planets quickly because of high average velocities.
This video is amazing.
I learned a lot from it.
Thank you very much!
Congrats with 3 mill :)
So much of this goes over my head but damn is it fascinating!
Maybe a solar sail would be an option. It would use the power of the sun directly and as it can at least in theory be made very thin, it could cover a large area after being deployed while before that being stored on a space small.enough to fit into a spacecraft.