Electromagnetic currents connect the Sun's magnetic field to the Earth and to the other planets. Every star connects to the center of every galaxy and the center of each galaxy connects into the plasma fields that your avi so wonderfully depicts. Plasma in space acts as a superconductor. The universe is electromagnetically connected. The awakening into an electromagnetic universe feels like a religious experience.
Intelligence is like a blade: it is neutral. Only based on the motivation to use it determines good or evil. Intelligence with malice is self-serving and wreaks destruction. Conversely, intelligence driven by benevolence can serve mankind and beyond.
AmsterdamHeavy I think they both serve important but different purposes. Mars is the best option for a large colony (and large I mean millions) to be our second home, while the lunar space is better for mining, launches and orbital construction facilities.
I believe we are already an actual spacefaring civilization. Hell men have walked on the moon!! Men live in low orbit for months at a time. Mars is a fine place to colonize. So is the Moon. I think both should be colonized. If Stellaris has taught me anything its this... we need as many colonies and populations as we can get and as fast as we can get them.
@@AmsterdamHeavy Do you seriously think they are lying about the moon landing and space shuttles? Or do you mean to say that those achievements are meaningless? Either way I think you are wrong. There is evidence of those worthwhile achievements.
@@roblaquiere8220 No, the space shuttle was just very unsafe and hillariously expensive for somethign "reuseable". An upgraded Saturn 5 with 4 decades of experience in it would probably have beaten it hands down in every way possible. Cost. Power. Safety. So would have a shuttle 2.0, not engineered with too many ideas in mind while designing. The F9 is really the first modern rocket since the Saturn....everything else was just regugitation....expensive regurgitation. More boosters. More cost. More unsafe bodges. More hypergolics (looking at the russians here). More recycled 60s designs....
I have actually have a fridge(that is larger than the one in my kitchen mind you) for drinks and snacks right next to my desk. Just gotta roll the chair to the side a bit!
I think the most useful definition of a "multiplanetary species" is that of having a human presence on another planet which is capable of surviving and growing on its own.
I wonder how those birds are flying in that rotating station. Artificial gravity by centrifugal force keeps thing on the ground, but without an attachment to the ground, you're in microgravity, right?
No, there is no magic force that keeps the air from spinning with the structure that encloses it. If a part of the spin axis is in "open air" (contiguous with the air above the "landscape"), then the birds would be in "microgravity" THERE. Below (outward from) the axis, spinning with the enclosed air gives you spin gravity; more the further from the axis. At a moderate distance from the axis, a bird (or a drone or a vehicle) might be able to remain objectively "motionless" by flying anti-spinward against the motion of the internal air. Technically, even at the outer floor, moving anti-spinward relative to the floor reduces your "weight", and moving spinward relative to the floor, increases it, but on a torus or cylinder with a large enough diameter to produce 1 G with 2 or 3 RPM, you'd never notice this effect at walking speed.
One could only wonder how Isaac Arthur is able to create so many, such high-quality productions! One might begin to think, that Isaac is, in fact, a Jupitar Brain! :O :P :D
@@paull3278 I come across this problem when explaining I'm a transformer. But I can't tell people I'm a cisformer, because nobody have a clue what that is.
@@michaelggriffiths your comment doesn´t have any sense... your entire comment is summarized in the word "wisdom" of the sentence... Are you sure is Asimov who failed to understand...? Is a very simple sentence...
Says the guy who wrote about building an oligarchy and a hive society and made Golan choose anything but free will.... I love Asimov, but I would've done anything, anything, to choose something other than equality with apple trees or psychic shrinks. Better humanity end forever than to live under an unbreakable yoke.
"Oh, give me a locus where the gravitons focus Where the three-body problem is solved, Where the microwaves play down at three degrees K, And the cold virus never evolved Oh Home, home on LaGrange, Where the space debris always collects, We possess so it seems, two of Man’s greatest dreams: Solar power and zero-gee sex
Zero-G sex would be interesting...and more likely problematic. On Earth, gravity takes care of the momentum problem. But without it, every movement sends you spinning and/or coasting off somewhere. I guess that's what we will use padded rooms for.
@@sab1751 from the Black Pants Legion's song writer. Check out Tex talks battletech and it will come up. I could spend hours listening to that beautiful voice smooth as lunar regolith and as sweet as the dead sea.
So we are currently living inland on the plains, with some very minor settlements on the coast. We still tend to build the ships and truck them to the sea before setting sail Very close to the coast. But once we start settling fully the coasts and harbors, getting out to sea and the wider ocean becomes so much easier. Most of Human civilzation resides close to or on the coasts. I would expect space to fairly similar.
Step 1: we colonize the moon. Step 2: then colonize Lagrange points. Step 3: ? Step 4: make mobile suits. Step 5: make Gundam IRL, we may need to drop a colony on australia to do this but that is a cost I'm willing to pay.
@@bluemmy1886 I mean you are right, even in the Gundam series the Zeon Colony drop could not defeat all of australia. So the Kangaroos will be able to hold out.
@@bluemmy1886 Screw the kangaroo - fear the Emu, they won an actual declared war against the Australian Army. No vehicles, no firearms, hell not even any opposable thumbs, and they beat a modern infantry that had declared a war of genocide on them.
Thanks, Isaac for making these kinds of videos, really cool to see other people thinking about this kind of stuff. I don't get talk to people about these topics in everyday life, but every video is like a cool discussion on the future. Bonus points for helping broaden the imagination of what could be achieved for many people watching you for the first time. You never know who your videos could set on a path. Great work, keep it up!
@@isaacarthurSFIA Thanks for the video! The exhaust plume rising as the rocket passes at about 0:23 seems wrong. Wouldn't the exhaust plume be pushed downwards? Is there ever a situation - like in outer space, when a rocket is moving super fast - where a rocket's exhaust plume ends up moving in the same direction as the rocket, and still acts to increase the rocket's speed?
@@FLPhotoCatcher If the rocket is moving faster than the exhaust velocity, the net movement of the exhaust will be forward. The momentum transfer still happens because the exhaust is still travelling backwards with respect to the rocket.
@@cf453 That makes sense. It does seem strange that if a rocket zooms past, and its exhaust is moving in the same direction, that the exhaust could be providing additional speed to the rocket.
I realized something about myself while listening arthir talk about cislunar colonisation from my miniaturised speakers conected to a computer in my poket wirelessly wearing clothes made out of a fabric developed for space exploration while siting on the floor of a log cabin warmed by a fire I made rubing two stick together and carbing a flute out of a cow bone with a stone axe I made myself I am a techno barbarian
If you speak true and not a nice story or anecdote..then yes..and you are awesome xD Would like to hang out with you and make a drum from skin of that cow..so we could play some music and add to human culture xD
22:30 reminded me of an anecdote on the building of Brasilia, Brazil: there used to be an industrial size concrete-mixer that would mix concrete non-stop (yes, 24/7) until it broke & had to be replaced. the calculations showed that it was less expensive to buy a new concrete-mixer ever 30 days than turn it off for maintenance. so I can easily see companies shipping these kinds of robots to the Moon periodically & using them until it stops working (or its marginal production falls too low) & needs to be replaced.
Is anyone else getting weird video lags every ~5 seconds or so? It's happening for me in 3 different browsers, at both high and low resolutions. The audio is fine, though.
upload glitches, youtube gets them sometimes in the first 24 hours on longer videos and I had to reupload this last night, normally I put them up a week or more out
Thanks you Sir, this video has arrived at the right time. I have just finished my 1st novel set on a research station at the L2 point and this video has helped with the science. Thank you Isaac Arthur, I will give you a mention if it ever gets published.
Isaac, your videos are some of the few that I can endure watching at normal speed (instead of 1.5 or 1.75 for the really slow speakers) because it gives me more time to enjoy the ideas you share with us. Love your content, keep it up please.
I really don't get the fascination with Mars. I have little to no interest in humans colonizing Mars. Now the Moon... I'm 100% for colonizing Luna and the area around space.
Why not both? If you can colonize the moon, you can colonize Mars. The requirements really aren't very different. Arguably, the moon may be worse, due to the extreme temperature variations and extremely long days and nights.
The appeal of Mars is long term, it would make a better permanent home than Luna. That said, we have to learn to walk before we can run, thus we need test beds close to Earth to figure out the kinks of long term space settlement, so a few spacesteads in Earth's orbit and stations on Luna are the best near term ideas.
@@sidgar1 Uhm, no. Transphobes have been making the same "can i identify as attack helicopter" joke for at least a decade now and it's just tiresome for those of us that live our lives having to witness such ignorance on a daily basis that people use as a justification to disregard my life as a human being. As for the handle, I got it from a Puerto Rican gang member. Started calling me Trikki and then just Trikk. Then I see him again on the streets of Philadelphia slinging coke and heroin some months later. He was a cool guy. Always nice to me. I hope he's doing well.
@@PerfectAlibi1 i think in a wheelchair when a wheel makes full circle is counted as a step, that is if you mark a point on a wheel and how much wheelchair moves untill that point returns to its starting place. But you can call it first roll...i guess... One should never let anything stop him/her.. if steps are not possible..then roll..if not roll..then crawl... but always there can be movement.. xD
@@PGGraham Theoretically, if we have nuclear propulsion, we can accelerate at 1G for the first half of a trip and slow down at 1G for the second half. However, those are short trips of less than 100 light-years. There is a maximum speed for the engine, and once we hit it, are stuck at that speed until we reach the slow-down window.
Practically speaking, only with a spaceship drive that consumed basically no fuel. Not "perfect conversion of matter to energy" no-fuel, "probably violates conservation of energy and/or momentum" no-fuel. If fuel is a concern, people are going to point out that you could get superior or equivalent performance from short burns and lots of coasting.
Hi Isaac, have you ever read a Japanese sci fi novel series called Crest of the Stars? Maybe it's just me not reading enough novels, but this one is the first I read in which a galactic empire doesn't care for planets. Its first class citizens are all transhumen who live their entire life on space habitats. When the empire "invade" a planet for land marking purpose, they just have their millions of star ships do a drive by without firing on anything on the planet and announce to the planet that they have conquered the planet. In terms of scale this novel is quite good.
Wouldn't this be creative.... If we built a 12 by 48 mile Titanium O neil cyc in lagrange four called it Babylon 4, and one in lagrange five and called it Babylon 5.... Two massive cites built from IRU from the moon.
Wouldn't it make more sense for rotating space stations to use the momentum from the catapulting of space vessels to maintain their rotation or even to assist with station-keeping instead of having to counteract that momentum transfer with the burning of fuel to create yet another momentum transfer?
Railguns on the Moon. One of Heinlein's most perfect predictions. And, while she might indeed be a harsh mistress, Luna is also so important to everything we need to do going forward; sort of like the crazy, hot girlfriend who is also incredibly rich . . .
The formal stuff needs to be regulated... atm the only thing you own in space is whatever you put up there (and orbits, which are leased). You can land equipment and start extracting resources, but if it's profitable, other company or nation can do the same on "your" land. Or idk, build a fence around your rover. Technically they'd not damage or steal that rover so it's legal according to "space law".. No sane company would invest billions without owning the land underneath and having a guarantee (from their govt or G20 or whatever) that this land and their equipment/ houses will be protected.
Eh. By the time you get to space-based Manufacturing the notion of monetary value erodes to something unrecognizable. We as humans kind of need to prepare for that. Heck. Being in manufacturing myself... The value of everything is pretty much already made up as is. Arbitrary and not based on effort or quality. This is because we have yet to future proof our global and local economies. Its actually a big BIG problem that will eventually collapse all our economies. Everything right now is literally a shell game.
@@allhumansarejusthuman.5776 That has less to do with resource availability and more with the advent of fully automated labor. Just like horses, the engines of industry wiped out the need for animal labor, as such the need for human labor will disappear. Wealth as a concept will be about entertainment, sports, art, and pleasure. Four things horses are used for in the modern world, will be our existence. It is likely that this automation will happen before independent Lunar colonies become a thing.
Colonizing Cislunar space is not very LGBTQ+ inclusive. I’m offended. I’m triggered. Off to twitter to complain and accidentally promote a very well made video.
That’s definitely one piece of technology we could use as a ship in orbit with arms on the outside and as the ship orbits its arms can grab pieces of space just. The arm puts it in I call the mouth where inside is technology that dismantled everything down to individual stuff. Then can melt it down and stored for pickup with another ship that can take the materiel and 3D print parts for space infrastructure or ships. With a small fleet we could clean earth orbit up and reuse it all
It's a shame that the only motive for space development & exploration most people can imagine is population pressure, which is unlikely to play much of a role in the future. But even after humanity (or post-humanity) is freed from the prehistoric breeder mentality there will still remain curiosity and thirst for knowledge, which are sufficient motives -- for humans, AIs, or any syntheses.
To me this video makes the case that it is a good thing that the earth has an "overpopulation" "problem," if we are moving toward becoming a spacefaring species or civilization, I would think having billions of people on Earth, would be a good thing, because we would have numerous people to colonize other places, like the Moon, Mars, or space stations in various locations around any of those celestial bodies. So why do we see any negative feedback about the worlds population by the news media or scientists? I have my theories, but don't want to go into a multiple chapter comment here, so I'll leave it at that for now, and only plant the seed of that thought in the minds of those who read this comment. Question everything!
Great video! So how soon can we expect all this to occur? I'm guessing not in my lifetime unfortunately. I think I'll be lucky if I make it into space at all! In any case, I'm glad to see that some folks are still seriously considering our prospects as a space-faring community.
Came for the 'cis' gender comments, wasnt disappointed.
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Not too many comments actually, lol. Probably because most people over 30 dont even know what 'cis gender' means. Its just something Gen Z'ers and younger Millennials know, for the most part. And even some of them don't.
No such thing as renewable. The future is nuclear. Solar will be more affordable, but it is the waste photon ejection of the sun's fusion core. If we build a space elevator, we could add solar panels the size of a city on it and probably run the nation that it is tethered to, though.
@@NoobNoobNews your thinking a bit too long term on the parameter definition of "renewable" by a couple billion years. Have you seen Isaac's video on space based solar power generation? If not if highly recommend it
@@allhumansarejusthuman.5776 i know what you are talking about, but at that point it is less about renewable and more about what is cheapest and easiest to run.
I have yet to read the NSS report, but I'd like to know what we're going to do with the Van Allen radiation belts if we're going to colonize cislunar space.
What do you think about mining He3 on the moon, and using that for fusion, compared to power satellites? - I've heard that losses from beaming the energy though atmosphere will be rather large...
We could likely use satellites for power using current technology. Fusion on the other hand is still out of our reach. Has been "a decade away" for 60 years now lol
@@reichrunner1 That's true about Deuterium fusion. I think He3+He3 fusion is already feasible, but He3 is incredibly expensive(= rare on Earth). However: There are loads of it on the moon from solar wind, fully replenished every month (= lunar day). - We just don't pursue He3 fusion much, because it seems uneconomic (we don't have fuel for it), _but_ if we could mine it on the moon, it would actually be very economic even with importing it all the way here. - Also, it produces protons, not neutrons like 'classical' fusion. You cannot control neutrons with with magnetic fields, and they 'corrode' the reactor over time and make things radioactive. This problem disappears with protons.
@@reichrunner1 In theory (from what I've heard) it actually turns out cheaper and much more efficient, than huge losses from beaming energy through air, which, btw: those losses would warm up the atmosphere (although, rather little, compared to all normal sunlight, but if we had many such satellites...) - Landing huge tanks of He3 would also produce heat, but it should be relatively easy to manufacture them on the moon, so at least, we wouldn't need to launch the empty tanks to the moon. This would still produce less heat than beaming through atmosphere... (I think)
He3+Deuterium is also a possibility. Also aneutronic. By normal Deuterium fusion before, I meant Deuterium + Tritium (what ITER uses, and most conventional attempts)
@isaac, can you do an episode on the possibility of singular living or artificial entities the size of galaxies or larger(galaxy to local cluster and each step up) eventually reaching the possibility of organic, artifical and/or synthetic creations so large that it's beyond clusters possibly taking up whole voids or even filament and wall sized taking up significant chunks of our know visible universe? Kinda dipping into the lore of marvel comics and trying to assign a physical scale to their manifestation. Thanks!
While I know space junk was covered a lot in Orbital Infrastructure I think it's more important than a passing mention when it comes to Colonizing Cislunar Space and the Lagrange Points. Not sure if it warrants an entire episode but giving an update on the kind of technology that could be used for cleaning up space junk. Drones for sure but how they could go about it would be interesting to know.
"Cost" is a relative term in this context! Should we even be thinking of $ value in a product or should it be a function of manpower to produce the system that produces the system that eventually produces the product? Obviously we are in a cash economy here on Earth but other models become available and may even be preferable in a post scarcity economy ...... which is what this is creating! We may even get a dualistic model like we see in Star Treak where interactions can be entered into on a monetary basis but general living within the system is cash free!
I think talking about cost is still valid. Even in post-scarcity, you want to discourage certain behaviors (like ordering 1000 hamburgers at once from the replicator). If you use a quota system, then the currency might be quota credits. (Example: I'll give you 2 kJoules of my energy quota if you say "Make it so".) What the currency IS matters less than the ability to signify value. In a post-scarcity world, influencers might finally get the "exposure" currency to catch on.
Dollars are what we've got. Considering the number of political thinkers who can more easily imagine the end of the world than the end of capitalism...well, it's a cost factor that's easy to research, share, and understand.
There is a $ cost element to set up for sure .... but once you get past 1st generation production it becomes availability rather than cost! The 10,000 burger order at the replicator could be stopped by peer pressure or even summary execution ... or anything in between! It is a bit like the free chocolate biscuits available for workers to eat in the chocolate biscuit factory. At first they scoff them down but it soon pales and people only take what they want/ need!
Star Trek didn't invent anything. It was only practical execution of ideas already debated on Earth, though I would not mention the name as Americans get diarrhea in the ignorance.
@@timothymclean It shouldn't be surprise, because capitalism is absolutely natural like gravity. Problem are only extreme interpretations if not worship of something what is just simple logic. Even in Star Trek there was a trade between civilizations and local exchange on Earth (mostly handmade goods). It is just that people have guaranteed Social Welfare as resources and production was so cheap, that you didn't need keep competition to keep costs even lover.
Soon... As Soon as the funding for the internationally funded projects come to fruition. Getting funding to these projects is the touchy issue. Politicians are rather short sighted they don't like approving funding for things that take years to build, and experimental fusion reactors take a long time to build. Call your government representative and impress on them the importance of fusion power.
The joke is fusion power is 30 years away..next year it will still be 30 years away. Can't keep something as hot as the sun contained without energy hungry electro magnets. More energy than is actually produced by what they are fusing. This is the main stumbling block so far.
@@QarthCEO I think Thorium is worth exploring, at least the physics behind it are easier to engineer and from what I know the basic design(s) are much safer than PWR's. Fusion may one day be the prime source of energy for all things.. but when is another matter. It could be some time and if the costs so far are any indication it will also be some time before it pays for itself.
I think by the time we get to moon bases mars colonies, orbital stations the cost of going up in space witll be 10% of what it is now, lunching things from the moon will cost even less, sheilding will be imporved to protect people from radation and maybe even artifical quaifty will be invented so that there will be no need for spinning a ship,
Translunar cycler picks up KE through continual Lunar slingshots then transfers this via a 1000 km zipline to suborbital capsules lofted from Earth that then take mag-break rides at 3Gs. You could build 1300 of these for a interplanetary trip at suborbital launch cost every half hour. After a decade's operation this is a mere million humans roaming around Sol system. The same system helps lift cargo from your station on Luna's trailing edge.
I think Lagrange points push outwards, like antigravity, instead of attracting, like regular gravity... it's a vortex made of 2 gravitational fields opposing each other
How do you arrange designations of LaGrange Points? That is, would L4 between Earth and the Moon be called "Earth/MoonL4?" Would "Sun/EarthL4" be the LaGrange point between the Sun and the Earth?
SPACE MIRRORS!!!! an incredibly good idea. must do. sea water aerosols, switching the global economy to fission caseload, carbon engineerings carbon capture platform, and banning beef and chemical fertilizers. a "carbon coin" based on blockchain(digital currency) backed by central banks as a speculative commodity for rapid investment in decarbonization as highlighted in Kim Stanley Robinson's book "Ministry of the Future" is a good idea as well. gotta try to prevent climate catastrophe! not much time left.
could put all the people on the moon and still have places to grow food and other stuff, make a 3 or 4 story building around just 1/3 of the moon could house all the people on Earth
Issac for pres 2020. Or however you beaver haters do thst. A snack and drink for all. You may decide to decline them though pres Issac only SUGGESTS you MAY want them.
I agree! I believe that everybody has gotten space exploration wrong since the inception of the "Space Age." Channeling imperial explorers of ages past we have treated the Moon and Mars like they were islands upon which we must plant our boots (and flags). To me this is, in the case of Mars, just romantically-driven target fixation. And what are we trying to achieve here? Colonization? Whatever that means? A few scientists occupying a small base with nothing much to do is a ridiculously expensive and ultimately unsustainable indulgence! The unspoken assumption in all these space dreams is the creation of a self-sustaining space-faring civilization. We need to re-set our thinking with this correct objective in mind. Forget Mars for now. For the foreseeable it will be a ruinous financial burden that will almost certainly fail. Phobos? First you don't "land" on an asteroid you dock with it! Any activity there will throw rocks and dust off of its near zero-G surface. We need to first develop cis-lunar industrial infrastructure - asteroid mining, manufacture and construction. Systems that log and manipulate asteroids will also give us planetary protection. Moon mining will give us fuel and other useful by-products and we can build large habitats and space-based telescopes on the dark side and the L-Points. Once we "digest" these opportunities the rest of the solar system, including Mars, is wide open to us. The objective should be the creation of a self-sustaining space-faring civilization. The mistaken assumption is that a vague multi-billion dollar programme of Mars "colonization" will give us that. It's far more likely that a landing on Mars will end up being an Apollo-style "flash in the unsustainable pan" that however momentarily impressive, will be terminated the minute there is a real shock to the world's budgets that are its only support. The only way we will ever have a self-sustaining space-faring civilization is if its finances and infrastructure are carefully marshalled and not dissipated by romantically-indulgent billion-dollar long-shots. In a field where billion-dollar budgets can be blown with not much to show for it we need to be rational about what our objective is!
I was born in 1958 and have grown up with the entire world's efforts to reach space, the moon, other planets and their moon, asteroids and comets, the very Sun, and even beyond our system. I have been filled and thrilled with wonder at the achievements, and carry the tears and pain of the disasters. I have watched Milestones 1 & 2, and now dread Milestone 3. This is where it all becomes about money and fucking profit. Watching Musk speak about the wonders of Space is like watching Trump talk about the suffering of... well anybody, he simply doesn't care. Once it became about stockholders, profits, and sociopaths stroking their "egos" in front of the world I lost all interest. I hope that future generations have something noble to strive for other than find a cure for the next profit inspired virus. Please God forbid that sociopathic billionaires become the next generation's heroes.
Hello Isaac, I enjoy your posts. I seldom write because I don't get responses. A bit bored now, is there a way you could post something on gravity, no not the spinning spaceships keeping the 1 gravity measurement. Something like gravity flooring, maybe something that pushes you down as-if you had Earth type atmosphere above you. I think the lack of gravity is a real big deal. So much on the internet I think is false. Whoever comes up with a gravity something would go down in history like Einstein or Tesla. I still have your post on O'Neil cylinders. I also feel the best way to move anything from Earth to space would be that satellite that spins and hooks onto planes outfitted with engines for propulsion in atmosphere and space. Could work, Don't think the elevator will ever work. You're the smartest guy I know in this area, bet you can do well. Thanks in advance.
I don’t think this was the first time watching this video, but he talks about space expansion to orbiting habitats. In my comments on videos about the expansion of human beings to space, I had to point out the need for Earth grade gravity, and the use of Hyper Gravity Vehicle Habitats. In this video, Issac talks about the fact that we will have our first Large Scale Space Habitats not too far from Earth… He doesn’t tell us about how we will get thousands of people to want to go through the agony of getting to orbit or wanting to stay there other than overpopulation. Of course, there will be the few who want to be there just because it’s outer space and fewer who are in shape and trained to go to orbit. Yet, in hundreds of years, humanity will need to expand to orbit just as we will run out of land on Earth for more land in space, man-made lands, habitats… Issac talks about what resources we’ll need from space, as I have commented that we will need a reason to mine the Moon and asteroids more than science experiments. Relativity Space will most likely be one of the first to start space mining to make the 3D Printing done in space more affordable, but that is done in space for space use… What we need is something to mine and bring back to earth like rare Earth elements and the Helium 3 for our future power stations, but I’ve heard about cheaper and less effective nuclear power stations. Cheaper nuclear power plants brought to us by Tech for Luddites; th-cam.com/video/C6BGLgJY0Wg/w-d-xo.html Will the new cheaper power plants be cheaper than mining the Helium 3? The use of Helium 3 in the Moon's power plants because we mine the Helium 3 there, but the Moon is radiated from space radiation, so will it be easier to use the spent nuclear waste that we already have? We need a rich billionaire to fund the development of the mining of Helium 3 before we move to Mars… As I’ve commented about the need to travel through space faster is needed before we start the big space projects. It sounds as if we will be using Nuclear Thermal Propulsion soon so that within ten years we can get these projects moving faster through space… I copy all of my comments to; thenewmars.wordpress.com/ for your easy reading…
Re: Solar sails. Silver is 5% more reflective than Aluminum and, due to it's high ductility, can be made into a very thin foil. Also, the moons regolith contains more silver than high grade ores on Earth so it can be sourced and delivered to a ship's in-space construction site cheaply. Silver should be considered for solar sails as an alternative to Aluminum.
I wouldn't waste the fuel on welding for a welding robot. Keep it for propulsion. In the vacuum, you could arc weld without flux or shielding gas. All you need is filler metal. Power the welder with a solar panel and batteries. 12kW with a 30% duty cycle for welding will do just about any structural joint you are likely to require.
Space mirrors!!! Mini modular thorium reactors,!!! Beam the sunlight back at the moon base for additional energy!! Lowell wood novacene James lovelock Google it
I want to build my own country in space and colonize it with like-minded people from all over the Earth. Earth is just too crazy for me and many people do not like my beliefs or my values (plus the current taxes are too expensive IMO.) I want to go to the moon, mine the moon, build a "space stead" (like a seastead but in space,) park it between Earth and the moon, and move there. One of the biggest reasons the New World was colonized was because people wanted the freedom to pursue their beliefs and later because there was the potential to make a huge profit. Once it becomes possible for people to live in space as easily as they do on earth (but with a lot more freedom) then people will flock to space in droves.
you are talking about us colonizing the earth and leo until its full - but arent we peaking earth population around 9-10 billion people before it goes down again, not because of lack of space, but because more educated people have fewer children? So, while i would love to see space colonization, im kinda doubtful we can spread all over space, with ever dwindling numbers...
As a metallurgist, I scoff at a robot lugging around an aluminium refinery in a vacuum. Check out the electrochemistry of aluminium and how it needs electrorefining in a reducing molten salt environment.
Until we get rid of any form of Rocketry and develope other means of exotic propulsion technologies. Just forget about any type of colonization. Nothing is impossible to us. Original thinking will take us to the Stars.
What might a possible business case for industrialization of the Trojan Lagrange points be? There are no natural mineral deposits to extract & process. The only feasible business case for such buildup which I can see would be placement of solar mirrors or pushing lasers at a point which does not require expending energy on equally expensive active support. Pushing lasers from one or both of these points may be able to boost lunar orbiting satellites or slow low energy cargo vessels. Orbiting the moon for extended periods of time is very difficult and will require constant boosting and course correction. If enough satellites are in lunar orbit for communications and light relay to truly warrant this business case, it is likely that the lunar industrial complex will be so well developed that it will make more sense to simply launch new satellites or more fuel rather than create expensive pushing lasers at one of the Trojan points. Much later on I could see this area develop for assisting interplanetary transport and much like in the 'interstellar highways episode', but I do not see why the development of this particular region of space directly aids any immediate further development toward lunar industrialization or commerce.
I'm not religious.
But videos like these give me something to believe in.
I have faith in mankind, we'll screw it up, somehow.
Electromagnetic currents connect the Sun's magnetic field to the Earth and to the other planets. Every star connects to the center of every galaxy and the center of each galaxy connects into the plasma fields that your avi so wonderfully depicts. Plasma in space acts as a superconductor. The universe is electromagnetically connected. The awakening into an electromagnetic universe feels like a religious experience.
Intelligence is like a blade: it is neutral. Only based on the motivation to use it determines good or evil. Intelligence with malice is self-serving and wreaks destruction. Conversely, intelligence driven by benevolence can serve mankind and beyond.
@@GeneraluStelaru No the opposite.
@@GeneraluStelaru Um, are you alright dude?😬😬😬
Ive always said the yammering about Mars was stupid. This is the first step in becoming an actual spacefaring civilization.
AmsterdamHeavy I think they both serve important but different purposes. Mars is the best option for a large colony (and large I mean millions) to be our second home, while the lunar space is better for mining, launches and orbital construction facilities.
I believe we are already an actual spacefaring civilization. Hell men have walked on the moon!! Men live in low orbit for months at a time.
Mars is a fine place to colonize. So is the Moon. I think both should be colonized.
If Stellaris has taught me anything its this... we need as many colonies and populations as we can get and as fast as we can get them.
@@roblaquiere8220 Until we can settle at L4 or L5, the rest is all bullshit - like the space shuttle was.
@@AmsterdamHeavy Do you seriously think they are lying about the moon landing and space shuttles?
Or do you mean to say that those achievements are meaningless?
Either way I think you are wrong. There is evidence of those worthwhile achievements.
@@roblaquiere8220 No, the space shuttle was just very unsafe and hillariously expensive for somethign "reuseable". An upgraded Saturn 5 with 4 decades of experience in it would probably have beaten it hands down in every way possible. Cost. Power. Safety. So would have a shuttle 2.0, not engineered with too many ideas in mind while designing. The F9 is really the first modern rocket since the Saturn....everything else was just regugitation....expensive regurgitation. More boosters. More cost. More unsafe bodges. More hypergolics (looking at the russians here). More recycled 60s designs....
Oh, what a coincidence! It's about 31 steps from my room to the fridge for a snack and a drink!
I have actually have a fridge(that is larger than the one in my kitchen mind you) for drinks and snacks right next to my desk. Just gotta roll the chair to the side a bit!
Legendary comment
What drink and snack do you prefer??
"Maa, bathroom!"
@@rickandelon9374 I prefer some cashews and my fav beer.... Bud light
I think the most useful definition of a "multiplanetary species" is that of having a human presence on another planet which is capable of surviving and growing on its own.
I wonder how those birds are flying in that rotating station. Artificial gravity by centrifugal force keeps thing on the ground, but without an attachment to the ground, you're in microgravity, right?
True haha
No, there is no magic force that keeps the air from spinning with the structure that encloses it. If a part of the spin axis is in "open air" (contiguous with the air above the "landscape"), then the birds would be in "microgravity" THERE. Below (outward from) the axis, spinning with the enclosed air gives you spin gravity; more the further from the axis. At a moderate distance from the axis, a bird (or a drone or a vehicle) might be able to remain objectively "motionless" by flying anti-spinward against the motion of the internal air. Technically, even at the outer floor, moving anti-spinward relative to the floor reduces your "weight", and moving spinward relative to the floor, increases it, but on a torus or cylinder with a large enough diameter to produce 1 G with 2 or 3 RPM, you'd never notice this effect at walking speed.
One could only wonder how Isaac Arthur is able to create so many, such high-quality productions!
One might begin to think, that Isaac is, in fact, a Jupitar Brain! :O :P :D
Clever beginning to the video.
I know some people who'd prefer to go translunar rather than cislunar.
I see what you did there..,
LoL
This unfortunate linguistic issue also comes up whenever we're talking about transhumans, which are distinct from, you know, trans humans.
@@paull3278 I come across this problem when explaining I'm a transformer. But I can't tell people I'm a cisformer, because nobody have a clue what that is.
Bravo Sir. Clap! Clap!
Hahahaaha etc.
What if the human population stops growing and starts shrinking before we start colonizing? Will there still be the push to colonize?
yes because no matter what its always safer to spread out rather than keep all our eggs in one cosmic basket ya know
Great presentation. Not easy to hear you though.
“The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom.”
― Isaac Asimov
No it's that science has been politicized and curtailed when it doesn't bow.
What Asimov failed to understand is that Science is a _part_ of Society.
Without society there can be no science.
@@bryanclark7608 ... "wisdom" is a reference to that...
@@michaelggriffiths your comment doesn´t have any sense... your entire comment is summarized in the word "wisdom" of the sentence... Are you sure is Asimov who failed to understand...? Is a very simple sentence...
Says the guy who wrote about building an oligarchy and a hive society and made Golan choose anything but free will....
I love Asimov, but I would've done anything, anything, to choose something other than equality with apple trees or psychic shrinks. Better humanity end forever than to live under an unbreakable yoke.
"Oh, give me a locus where the gravitons focus
Where the three-body problem is solved,
Where the microwaves play down at three degrees K,
And the cold virus never evolved
Oh Home, home on LaGrange,
Where the space debris always collects,
We possess so it seems, two of Man’s greatest dreams:
Solar power and zero-gee sex
Sung with melody from Home on the Range... dude you made a space cowboy song!
I wish I could like this comment more than once.
Zero-G sex would be interesting...and more likely problematic. On Earth, gravity takes care of the momentum problem. But without it, every movement sends you spinning and/or coasting off somewhere.
I guess that's what we will use padded rooms for.
@@sab1751 from the Black Pants Legion's song writer. Check out Tex talks battletech and it will come up. I could spend hours listening to that beautiful voice smooth as lunar regolith and as sweet as the dead sea.
That was fabulous, thank you.
Quality science discussions as always. 3D illustrations are just icing on the cake. 🍰
Thank you kindly!
So we are currently living inland on the plains, with some very minor settlements on the coast. We still tend to build the ships and truck them to the sea before setting sail Very close to the coast. But once we start settling fully the coasts and harbors, getting out to sea and the wider ocean becomes so much easier.
Most of Human civilzation resides close to or on the coasts. I would expect space to fairly similar.
Interesting analogy.🤔🤔
Step 1: we colonize the moon.
Step 2: then colonize Lagrange points.
Step 3: ?
Step 4: make mobile suits.
Step 5: make Gundam IRL, we may need to drop a colony on australia to do this but that is a cost I'm willing to pay.
You honestly think a Gundam could handle the might of a Kangaroo?
nah nah, he said colony drop. We'd be dropping space australia onto australia. No gundams necessary.
@@bluemmy1886 I mean you are right, even in the Gundam series the Zeon Colony drop could not defeat all of australia. So the Kangaroos will be able to hold out.
@@bluemmy1886 Screw the kangaroo - fear the Emu, they won an actual declared war against the Australian Army. No vehicles, no firearms, hell not even any opposable thumbs, and they beat a modern infantry that had declared a war of genocide on them.
@@humiecrusher "Neo Australia" would be the proper term.
Thanks, Isaac for making these kinds of videos, really cool to see other people thinking about this kind of stuff. I don't get talk to people about these topics in everyday life, but every video is like a cool discussion on the future. Bonus points for helping broaden the imagination of what could be achieved for many people watching you for the first time. You never know who your videos could set on a path. Great work, keep it up!
My pleasure!
Seconded... ^^
@@isaacarthurSFIA Thanks for the video!
The exhaust plume rising as the rocket passes at about 0:23 seems wrong. Wouldn't the exhaust plume be pushed downwards? Is there ever a situation - like in outer space, when a rocket is moving super fast - where a rocket's exhaust plume ends up moving in the same direction as the rocket, and still acts to increase the rocket's speed?
@@FLPhotoCatcher If the rocket is moving faster than the exhaust velocity, the net movement of the exhaust will be forward. The momentum transfer still happens because the exhaust is still travelling backwards with respect to the rocket.
@@cf453 That makes sense. It does seem strange that if a rocket zooms past, and its exhaust is moving in the same direction, that the exhaust could be providing additional speed to the rocket.
I realized something about myself while listening arthir talk about cislunar colonisation from my miniaturised speakers conected to a computer in my poket wirelessly wearing clothes made out of a fabric developed for space exploration while siting on the floor of a log cabin warmed by a fire I made rubing two stick together and carbing a flute out of a cow bone with a stone axe I made myself
I am a techno barbarian
If you speak true and not a nice story or anecdote..then yes..and you are awesome xD Would like to hang out with you and make a drum from skin of that cow..so we could play some music and add to human culture xD
All these jokes about 'colonizing translunar space,' and I'm just like: "Yes, that's when we get to the Jupiter system. It will be awesome."
Only if ""translunar" meant "interlunar". Even then Mars has two moons and is closer.
22:30 reminded me of an anecdote on the building of Brasilia, Brazil: there used to be an industrial size concrete-mixer that would mix concrete non-stop (yes, 24/7) until it broke & had to be replaced. the calculations showed that it was less expensive to buy a new concrete-mixer ever 30 days than turn it off for maintenance.
so I can easily see companies shipping these kinds of robots to the Moon periodically & using them until it stops working (or its marginal production falls too low) & needs to be replaced.
@@levetbyck well, if you want to build a new capital in 5 years, you don't replace parts, you replace the whole thing just after it breaks down.
@@jgr7487 News Flash, our Capital is already broken!
@@Ramiromasters I'm from there, & it's been broken for quite a long time.
@@Ramiromasters therefore, a new one is needed!
@@jgr7487 My country's capital is broken, but I don't think making a new one would help much. The broken parts would just come with.
Everytime i watch one of your videos i end up playing KSP the whole day...
Ha ha ha
For me it's Endless Space 2 :P Gotta assimilate those aliens
Is anyone else getting weird video lags every ~5 seconds or so? It's happening for me in 3 different browsers, at both high and low resolutions. The audio is fine, though.
Yeah, I see it too. Mostly noticeable closer to the end
They're render glitches
upload glitches, youtube gets them sometimes in the first 24 hours on longer videos and I had to reupload this last night, normally I put them up a week or more out
Today is my birthday and Isaac’s video came out yay :)
Happy birthday man
Happy cake day!
@Sal Vastola don't go thinking it's going to be easier after the 31st of December just because the year is out^^
Happy birthday!
I also have a birthday this year.
The lagrange points form a giant peace sign, got it!
An interesting parallel. Coincidence, if you believe in such a concept.
The hippies were actually just aliens! They were trying to teach us
Peace is the way to prosperity.
Seeing you mention "your friend Joe Scott" makes me inexplicably happy
Thanks you Sir, this video has arrived at the right time. I have just finished my 1st novel set on a research station at the L2 point and this video has helped with the science. Thank you Isaac Arthur, I will give you a mention if it ever gets published.
This video is clearly transphobic with its explicit focus on "cislunar" space!
heh.
What?
@@abhiprakash74999 No. It is derogatory.
Isaac, your videos are some of the few that I can endure watching at normal speed (instead of 1.5 or 1.75 for the really slow speakers) because it gives me more time to enjoy the ideas you share with us.
Love your content, keep it up please.
I really don't get the fascination with Mars. I have little to no interest in humans colonizing Mars.
Now the Moon... I'm 100% for colonizing Luna and the area around space.
Why not both? If you can colonize the moon, you can colonize Mars. The requirements really aren't very different. Arguably, the moon may be worse, due to the extreme temperature variations and extremely long days and nights.
Oh well, thanks for letting us know. We can rearrange everything for you.
The appeal of Mars is long term, it would make a better permanent home than Luna. That said, we have to learn to walk before we can run, thus we need test beds close to Earth to figure out the kinks of long term space settlement, so a few spacesteads in Earth's orbit and stations on Luna are the best near term ideas.
I want to vacation on the moon in a glass high-rise tower and I want to go swimming in a pool on the top floor!!🤙😁
@@michaelcox1071 I know right? It's a little late now! Wish he spoke up about 15 years ago...sheesh.
The last time I optimized paper clips this early they were papyrus clips.
broke: colonizing cislunar space
woke: colonizing translunar space
UwU
+1 internet for you
:Rubs away snack crumbs from under my nose: I can quit Isaac‘s channel any time I want.
This is where Jeff Bezos, not Elon Musk, has the right idea. Jeff Bezos plans spacesteads in Earth's orbit and colonies on Luna.
Can I identify as Cislunar? 🌙♂️
Looks like you'd be cismartian, from your emoji
Can you identify as an original joke?
Cislunatic.
@@trikkinikki970 It was original. More original than your username, if nothing else
@@sidgar1 Uhm, no. Transphobes have been making the same "can i identify as attack helicopter" joke for at least a decade now and it's just tiresome for those of us that live our lives having to witness such ignorance on a daily basis that people use as a justification to disregard my life as a human being.
As for the handle, I got it from a Puerto Rican gang member. Started calling me Trikki and then just Trikk. Then I see him again on the streets of Philadelphia slinging coke and heroin some months later. He was a cool guy. Always nice to me. I hope he's doing well.
Get to the lagrange points. That's where the von neuman probes are located
“The journey of a thousand miles begins with a single step.”
― Lao Tzu
Lao Tzu: 😏
Me: what if you're wheelchair bound? How do you make that first STEP? XD
@@PerfectAlibi1 i think in a wheelchair when a wheel makes full circle is counted as a step, that is if you mark a point on a wheel and how much wheelchair moves untill that point returns to its starting place. But you can call it first roll...i guess...
One should never let anything stop him/her.. if steps are not possible..then roll..if not roll..then crawl... but always there can be movement.. xD
@@DreamskyDance
Fair enough
@@PerfectAlibi1 Gundam.
@@adaeptzulander2928
I think I got that reference, though not entirely sure... It's been a VERY long time since I last saw that Anime... XD
I love this channel but it is the science equivalent of "this could be us but you playing".
Isaac, can we have gravity for long trips by purely accelerating and decelerating during the trip?
Yes, but that takes a lot of fuel, or propulsion tech that we don't have - yet.
@@PGGraham Theoretically, if we have nuclear propulsion, we can accelerate at 1G for the first half of a trip and slow down at 1G for the second half. However, those are short trips of less than 100 light-years. There is a maximum speed for the engine, and once we hit it, are stuck at that speed until we reach the slow-down window.
Realistically probably not, even with a better drive system it isn't very efficient
To moon yes mars Venus Hard interstellar no
Practically speaking, only with a spaceship drive that consumed basically no fuel. Not "perfect conversion of matter to energy" no-fuel, "probably violates conservation of energy and/or momentum" no-fuel.
If fuel is a concern, people are going to point out that you could get superior or equivalent performance from short burns and lots of coasting.
Arthursday is the best day. Thank you for giving us your wisdom.
Oh, hey, Joe Scott shoutout!
Hi Isaac, have you ever read a Japanese sci fi novel series called Crest of the Stars? Maybe it's just me not reading enough novels, but this one is the first I read in which a galactic empire doesn't care for planets. Its first class citizens are all transhumen who live their entire life on space habitats. When the empire "invade" a planet for land marking purpose, they just have their millions of star ships do a drive by without firing on anything on the planet and announce to the planet that they have conquered the planet. In terms of scale this novel is quite good.
Cislunar sounds like a way for SJWs to describe something from the Moon.
Wow, your speech have improved so much over the years! All that hard work paid off ^_^
step 1. colonize the moon.
step 2. weaponize the moon.
Crash the moon on earth-society.
Ah, a fellow violent crazy person. That makes you active competision. I'll see you in space war
@@jonahisparanoid1767 And here's me just waiting for Evil Genius 2.
I keep getting flashbacks to Anno 2205, it amazes me how perfect the game imitates this real-life systems.
Great game.
Great video, thank you!
Wouldn't this be creative.... If we built a 12 by 48 mile Titanium O neil cyc in lagrange four called it Babylon 4, and one in lagrange five and called it Babylon 5.... Two massive cites built from IRU from the moon.
Wouldn't it make more sense for rotating space stations to use the momentum from the catapulting of space vessels to maintain their rotation or even to assist with station-keeping instead of having to counteract that momentum transfer with the burning of fuel to create yet another momentum transfer?
Railguns on the Moon. One of Heinlein's most perfect predictions. And, while she might indeed be a harsh mistress, Luna is also so important to everything we need to do going forward; sort of like the crazy, hot girlfriend who is also incredibly rich . . .
The formal stuff needs to be regulated... atm the only thing you own in space is whatever you put up there (and orbits, which are leased). You can land equipment and start extracting resources, but if it's profitable, other company or nation can do the same on "your" land. Or idk, build a fence around your rover. Technically they'd not damage or steal that rover so it's legal according to "space law".. No sane company would invest billions without owning the land underneath and having a guarantee (from their govt or G20 or whatever) that this land and their equipment/ houses will be protected.
Guns. Guns in space will be a thing.
Eh.
By the time you get to space-based Manufacturing the notion of monetary value erodes to something unrecognizable.
We as humans kind of need to prepare for that.
Heck.
Being in manufacturing myself... The value of everything is pretty much already made up as is. Arbitrary and not based on effort or quality. This is because we have yet to future proof our global and local economies.
Its actually a big BIG problem that will eventually collapse all our economies.
Everything right now is literally a shell game.
@@allhumansarejusthuman.5776 That has less to do with resource availability and more with the advent of fully automated labor. Just like horses, the engines of industry wiped out the need for animal labor, as such the need for human labor will disappear. Wealth as a concept will be about entertainment, sports, art, and pleasure. Four things horses are used for in the modern world, will be our existence. It is likely that this automation will happen before independent Lunar colonies become a thing.
Yup. Property right in space will have to be resolved.
Colonizing Cislunar space is not very LGBTQ+ inclusive. I’m offended. I’m triggered. Off to twitter to complain and accidentally promote a very well made video.
The only one triggered here is you, kinda cringe
@Settlerking
Cringier when one doesn’t get the joke...
That’s definitely one piece of technology we could use as a ship in orbit with arms on the outside and as the ship orbits its arms can grab pieces of space just. The arm puts it in I call the mouth where inside is technology that dismantled everything down to individual stuff. Then can melt it down and stored for pickup with another ship that can take the materiel and 3D print parts for space infrastructure or ships. With a small fleet we could clean earth orbit up and reuse it all
It's a shame that the only motive for space development & exploration most people can imagine is population pressure, which is unlikely to play much of a role in the future. But even after humanity (or post-humanity) is freed from the prehistoric breeder mentality there will still remain curiosity and thirst for knowledge, which are sufficient motives -- for humans, AIs, or any syntheses.
To me this video makes the case that it is a good thing that the earth has an "overpopulation" "problem," if we are moving toward becoming a spacefaring species or civilization, I would think having billions of people on Earth, would be a good thing, because we would have numerous people to colonize other places, like the Moon, Mars, or space stations in various locations around any of those celestial bodies. So why do we see any negative feedback about the worlds population by the news media or scientists? I have my theories, but don't want to go into a multiple chapter comment here, so I'll leave it at that for now, and only plant the seed of that thought in the minds of those who read this comment. Question everything!
Elon Musk watching this video:
"😡 cislunar? Cis is a SLUR libtard"
Great video! So how soon can we expect all this to occur? I'm guessing not in my lifetime unfortunately. I think I'll be lucky if I make it into space at all! In any case, I'm glad to see that some folks are still seriously considering our prospects as a space-faring community.
It's not Thursday until the SFIA video is uploaded.
Happy Arthursday
This might just be a me thing, but I apply a lot of these principles when I am starting new worlds on Minecraft. Lol
I'm not sure what went wrong but a lot of those animations are pretty janky where they keep skipping every few seconds.
It must be at your end. was fine for me.
Can’t wait to lament central bank QE compelling me to live off-world in order to make ends meet.
Came for the 'cis' gender comments, wasnt disappointed.
Not too many comments actually, lol. Probably because most people over 30 dont even know what 'cis gender' means. Its just something Gen Z'ers and younger Millennials know, for the most part. And even some of them don't.
It seems obvious to me that the first use of space should be cheap renewable energy production to replace fossil fuels.
No such thing as renewable. The future is nuclear. Solar will be more affordable, but it is the waste photon ejection of the sun's fusion core. If we build a space elevator, we could add solar panels the size of a city on it and probably run the nation that it is tethered to, though.
@@NoobNoobNews your thinking a bit too long term on the parameter definition of "renewable" by a couple billion years.
Have you seen Isaac's video on space based solar power generation? If not if highly recommend it
@@allhumansarejusthuman.5776 i know what you are talking about, but at that point it is less about renewable and more about what is cheapest and easiest to run.
You don't need to go to space for cheap energy..
I have yet to read the NSS report, but I'd like to know what we're going to do with the Van Allen radiation belts if we're going to colonize cislunar space.
To first order, I suppose we are not going to put space colonies in the Van Allen Belts.
What do you think about mining He3 on the moon, and using that for fusion, compared to power satellites?
- I've heard that losses from beaming the energy though atmosphere will be rather large...
We could likely use satellites for power using current technology. Fusion on the other hand is still out of our reach. Has been "a decade away" for 60 years now lol
@@reichrunner1 That's true about Deuterium fusion. I think He3+He3 fusion is already feasible, but He3 is incredibly expensive(= rare on Earth). However: There are loads of it on the moon from solar wind, fully replenished every month (= lunar day).
- We just don't pursue He3 fusion much, because it seems uneconomic (we don't have fuel for it), _but_ if we could mine it on the moon, it would actually be very economic even with importing it all the way here.
- Also, it produces protons, not neutrons like 'classical' fusion. You cannot control neutrons with with magnetic fields, and they 'corrode' the reactor over time and make things radioactive. This problem disappears with protons.
@@reichrunner1 In theory (from what I've heard) it actually turns out cheaper and much more efficient, than huge losses from beaming energy through air, which, btw: those losses would warm up the atmosphere (although, rather little, compared to all normal sunlight, but if we had many such satellites...)
- Landing huge tanks of He3 would also produce heat, but it should be relatively easy to manufacture them on the moon, so at least, we wouldn't need to launch the empty tanks to the moon. This would still produce less heat than beaming through atmosphere... (I think)
He3+Deuterium is also a possibility. Also aneutronic.
By normal Deuterium fusion before, I meant Deuterium + Tritium (what ITER uses, and most conventional attempts)
I always wondered if it was a bad idea to remove mass from the moon. A billion large habitats being okay puts it in perspective.
@isaac, can you do an episode on the possibility of singular living or artificial entities the size of galaxies or larger(galaxy to local cluster and each step up) eventually reaching the possibility of organic, artifical and/or synthetic creations so large that it's beyond clusters possibly taking up whole voids or even filament and wall sized taking up significant chunks of our know visible universe? Kinda dipping into the lore of marvel comics and trying to assign a physical scale to their manifestation. Thanks!
Imagine joining an online match and the game places you with a team that's literally on the dark side of the moon.
14:45 The whole US GDP before or after the pandemic? >:)
Elon has mentioned getting 100mt to LEO for $2M USD with Starship. For Kalpana, 100,000 launches would cost $200B USD.
I'll do anything for your channel to reach a mil subs.
He'll need someone who talks properly to do the voiceover.
While I know space junk was covered a lot in Orbital Infrastructure I think it's more important than a passing mention when it comes to Colonizing Cislunar Space and the Lagrange Points. Not sure if it warrants an entire episode but giving an update on the kind of technology that could be used for cleaning up space junk. Drones for sure but how they could go about it would be interesting to know.
Maybe the space junk could be salvaged
Fox News wants to cancel this channel because -cis- is in the title. :D
"Cost" is a relative term in this context! Should we even be thinking of $ value in a product or should it be a function of manpower to produce the system that produces the system that eventually produces the product?
Obviously we are in a cash economy here on Earth but other models become available and may even be preferable in a post scarcity economy ...... which is what this is creating! We may even get a dualistic model like we see in Star Treak where interactions can be entered into on a monetary basis but general living within the system is cash free!
I think talking about cost is still valid. Even in post-scarcity, you want to discourage certain behaviors (like ordering 1000 hamburgers at once from the replicator). If you use a quota system, then the currency might be quota credits. (Example: I'll give you 2 kJoules of my energy quota if you say "Make it so".)
What the currency IS matters less than the ability to signify value. In a post-scarcity world, influencers might finally get the "exposure" currency to catch on.
Dollars are what we've got. Considering the number of political thinkers who can more easily imagine the end of the world than the end of capitalism...well, it's a cost factor that's easy to research, share, and understand.
There is a $ cost element to set up for sure .... but once you get past 1st generation production it becomes availability rather than cost!
The 10,000 burger order at the replicator could be stopped by peer pressure or even summary execution ... or anything in between! It is a bit like the free chocolate biscuits available for workers to eat in the chocolate biscuit factory. At first they scoff them down but it soon pales and people only take what they want/ need!
Star Trek didn't invent anything. It was only practical execution of ideas already debated on Earth, though I would not mention the name as Americans get diarrhea in the ignorance.
@@timothymclean It shouldn't be surprise, because capitalism is absolutely natural like gravity. Problem are only extreme interpretations if not worship of something what is just simple logic. Even in Star Trek there was a trade between civilizations and local exchange on Earth (mostly handmade goods). It is just that people have guaranteed Social Welfare as resources and production was so cheap, that you didn't need keep competition to keep costs even lover.
orth
is joke i liked video
There's a Cis-Lunar joke in here somewhere. I hope we can find it!
Is fusion power going to be a reality anytime soon??
Soon... As Soon as the funding for the internationally funded projects come to fruition. Getting funding to these projects is the touchy issue. Politicians are rather short sighted they don't like approving funding for things that take years to build, and experimental fusion reactors take a long time to build.
Call your government representative and impress on them the importance of fusion power.
The joke is fusion power is 30 years away..next year it will still be 30 years away. Can't keep something as hot as the sun contained without energy hungry electro magnets. More energy than is actually produced by what they are fusing. This is the main stumbling block so far.
Not any time soon.. Even ITER which is going to be another decade and a half and 20+ billion Euros will only be a test..
@@TheEvilmooseofdoom So then how are we going to power the future? Are thorium reactors real or just another pipe dream like cold fusion?
@@QarthCEO I think Thorium is worth exploring, at least the physics behind it are easier to engineer and from what I know the basic design(s) are much safer than PWR's. Fusion may one day be the prime source of energy for all things.. but when is another matter. It could be some time and if the costs so far are any indication it will also be some time before it pays for itself.
I think by the time we get to moon bases mars colonies, orbital stations the cost of going up in space witll be 10% of what it is now, lunching things from the moon will cost even less, sheilding will be imporved to protect people from radation and maybe even artifical quaifty will be invented so that there will be no need for spinning a ship,
Translunar cycler picks up KE through continual Lunar slingshots then transfers this via a 1000 km zipline to suborbital capsules lofted from Earth that then take mag-break rides at 3Gs. You could build 1300 of these for a interplanetary trip at suborbital launch cost every half hour. After a decade's operation this is a mere million humans roaming around Sol system. The same system helps lift cargo from your station on Luna's trailing edge.
I think Lagrange points push outwards, like antigravity, instead of attracting, like regular gravity... it's a vortex made of 2 gravitational fields opposing each other
How do you arrange designations of LaGrange Points?
That is, would L4 between Earth and the Moon be called "Earth/MoonL4?"
Would "Sun/EarthL4" be the LaGrange point between the Sun and the Earth?
SPACE MIRRORS!!!! an incredibly good idea. must do. sea water aerosols, switching the global economy to fission caseload, carbon engineerings carbon capture platform, and banning beef and chemical fertilizers. a "carbon coin" based on blockchain(digital currency) backed by central banks as a speculative commodity for rapid investment in decarbonization as highlighted in Kim Stanley Robinson's book "Ministry of the Future" is a good idea as well.
gotta try to prevent climate catastrophe! not much time left.
could put all the people on the moon and still have places to grow food and other stuff, make a 3 or 4 story building around just 1/3 of the moon could house all the people on Earth
Val-yume
Val-yume
Val. Yume.
Issac for pres 2020. Or however you beaver haters do thst. A snack and drink for all. You may decide to decline them though pres Issac only SUGGESTS you MAY want them.
I agree! I believe that everybody has gotten space
exploration wrong since the inception of the "Space Age." Channeling
imperial explorers of ages past we have treated the Moon and Mars like they
were islands upon which we must plant our boots (and flags). To me this is, in
the case of Mars, just romantically-driven target fixation. And what are we
trying to achieve here? Colonization? Whatever that means? A few scientists
occupying a small base with nothing much to do is a ridiculously expensive and
ultimately unsustainable indulgence! The unspoken assumption in all these space
dreams is the creation of a self-sustaining space-faring civilization. We need
to re-set our thinking with this correct objective in mind. Forget Mars for
now. For the foreseeable it will be a ruinous financial burden that will almost
certainly fail. Phobos? First you don't "land" on an asteroid you
dock with it! Any activity there will throw rocks and dust off of its near
zero-G surface. We need to first develop cis-lunar industrial infrastructure -
asteroid mining, manufacture and construction. Systems that log and manipulate
asteroids will also give us planetary protection. Moon mining will give us fuel
and other useful by-products and we can build large habitats and space-based
telescopes on the dark side and the L-Points. Once we "digest" these
opportunities the rest of the solar system, including Mars, is wide open to us.
The objective should be the creation of a self-sustaining space-faring
civilization. The mistaken assumption is that a vague multi-billion dollar
programme of Mars "colonization" will give us that. It's far more
likely that a landing on Mars will end up being an Apollo-style "flash in
the unsustainable pan" that however momentarily impressive, will be
terminated the minute there is a real shock to the world's budgets that are its
only support. The only way we will ever have a self-sustaining space-faring
civilization is if its finances and infrastructure are carefully marshalled and
not dissipated by romantically-indulgent billion-dollar long-shots. In a field
where billion-dollar budgets can be blown with not much to show for it we need
to be rational about what our objective is!
I was born in 1958 and have grown up with the entire world's efforts to reach space, the moon, other planets and their moon, asteroids and comets, the very Sun, and even beyond our system. I have been filled and thrilled with wonder at the achievements, and carry the tears and pain of the disasters. I have watched Milestones 1 & 2, and now dread Milestone 3. This is where it all becomes about money and fucking profit. Watching Musk speak about the wonders of Space is like watching Trump talk about the suffering of... well anybody, he simply doesn't care. Once it became about stockholders, profits, and sociopaths stroking their "egos" in front of the world I lost all interest. I hope that future generations have something noble to strive for other than find a cure for the next profit inspired virus. Please God forbid that sociopathic billionaires become the next generation's heroes.
Hello Isaac, I enjoy your posts. I seldom write because I don't get responses. A bit bored now, is there a way you could post something on gravity, no not the spinning spaceships keeping the 1 gravity measurement. Something like gravity flooring, maybe something that pushes you down as-if you had Earth type atmosphere above you. I think the lack of gravity is a real big deal. So much on the internet I think is false. Whoever comes up with a gravity something would go down in history like Einstein or Tesla. I still have your post on O'Neil cylinders. I also feel the best way to move anything from Earth to space would be that satellite that spins and hooks onto planes outfitted with engines for propulsion in atmosphere and space. Could work, Don't think the elevator will ever work. You're the smartest guy I know in this area, bet you can do well. Thanks in advance.
United Federation of Planets, here we come!
I don’t think this was the first time watching this video, but he talks about space expansion to orbiting habitats. In my comments on videos about the expansion of human beings to space, I had to point out the need for Earth grade gravity, and the use of Hyper Gravity Vehicle Habitats. In this video, Issac talks about the fact that we will have our first Large Scale Space Habitats not too far from Earth…
He doesn’t tell us about how we will get thousands of people to want to go through the agony of getting to orbit or wanting to stay there other than overpopulation. Of course, there will be the few who want to be there just because it’s outer space and fewer who are in shape and trained to go to orbit. Yet, in hundreds of years, humanity will need to expand to orbit just as we will run out of land on Earth for more land in space, man-made lands, habitats…
Issac talks about what resources we’ll need from space, as I have commented that we will need a reason to mine the Moon and asteroids more than science experiments. Relativity Space will most likely be one of the first to start space mining to make the 3D Printing done in space more affordable, but that is done in space for space use… What we need is something to mine and bring back to earth like rare Earth elements and the Helium 3 for our future power stations, but I’ve heard about cheaper and less effective nuclear power stations.
Cheaper nuclear power plants brought to us by Tech for Luddites; th-cam.com/video/C6BGLgJY0Wg/w-d-xo.html
Will the new cheaper power plants be cheaper than mining the Helium 3? The use of Helium 3 in the Moon's power plants because we mine the Helium 3 there, but the Moon is radiated from space radiation, so will it be easier to use the spent nuclear waste that we already have? We need a rich billionaire to fund the development of the mining of Helium 3 before we move to Mars…
As I’ve commented about the need to travel through space faster is needed before we start the big space projects. It sounds as if we will be using Nuclear Thermal Propulsion soon so that within ten years we can get these projects moving faster through space…
I copy all of my comments to; thenewmars.wordpress.com/ for your easy reading…
Re: Solar sails.
Silver is 5% more reflective than Aluminum and, due to it's high ductility, can be made into a very thin foil.
Also, the moons regolith contains more silver than high grade ores on Earth so it can be sourced and delivered to a ship's in-space construction site cheaply.
Silver should be considered for solar sails as an alternative to Aluminum.
I wouldn't waste the fuel on welding for a welding robot. Keep it for propulsion. In the vacuum, you could arc weld without flux or shielding gas. All you need is filler metal. Power the welder with a solar panel and batteries. 12kW with a 30% duty cycle for welding will do just about any structural joint you are likely to require.
Space mirrors!!! Mini modular thorium reactors,!!! Beam the sunlight back at the moon base for additional energy!! Lowell wood novacene James lovelock Google it
CANCEL Isaac Arthur RIGHT NOW! This is hate speech! Waht about non binary Lunar space? CANCEL Isaac Arthur NOW!
love this series so much
I want to build my own country in space and colonize it with like-minded people from all over the Earth.
Earth is just too crazy for me and many people do not like my beliefs or my values (plus the current taxes are too expensive IMO.)
I want to go to the moon, mine the moon, build a "space stead" (like a seastead but in space,) park it between Earth and the moon, and move there.
One of the biggest reasons the New World was colonized was because people wanted the freedom to pursue their beliefs and later because there was the potential to make a huge profit.
Once it becomes possible for people to live in space as easily as they do on earth (but with a lot more freedom) then people will flock to space in droves.
you are talking about us colonizing the earth and leo until its full -
but arent we peaking earth population around 9-10 billion people before it goes down again,
not because of lack of space, but because more educated people have fewer children?
So, while i would love to see space colonization, im kinda doubtful we can spread all over space, with ever dwindling numbers...
As a metallurgist, I scoff at a robot lugging around an aluminium refinery in a vacuum. Check out the electrochemistry of aluminium and how it needs electrorefining in a reducing molten salt environment.
Typical.... a Cis, white ball in the sky is the first we focus on!
(please dont take is seriously, anyone :D )
Until we get rid of any form of Rocketry and develope other means of exotic propulsion technologies. Just forget about any type of colonization. Nothing is impossible to us. Original thinking will take us to the Stars.
What might a possible business case for industrialization of the Trojan Lagrange points be? There are no natural mineral deposits to extract & process. The only feasible business case for such buildup which I can see would be placement of solar mirrors or pushing lasers at a point which does not require expending energy on equally expensive active support. Pushing lasers from one or both of these points may be able to boost lunar orbiting satellites or slow low energy cargo vessels. Orbiting the moon for extended periods of time is very difficult and will require constant boosting and course correction. If enough satellites are in lunar orbit for communications and light relay to truly warrant this business case, it is likely that the lunar industrial complex will be so well developed that it will make more sense to simply launch new satellites or more fuel rather than create expensive pushing lasers at one of the Trojan points.
Much later on I could see this area develop for assisting interplanetary transport and much like in the 'interstellar highways episode', but I do not see why the development of this particular region of space directly aids any immediate further development toward lunar industrialization or commerce.
11:00 hey the LaGrange points make a peace symbol ☮️. I wonder if there's anything connection there?
🌍
How will these spacecraft survive long distance, long duration journeys in deep space? With materials that don't exist yet I'm guessing.