@PK nd
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What do you guys think about humans settling on the moon ?
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I don't think anything like this is going to happen before we have a way to get into orbit without using rockets. Rockets expend about 99% of their fuel just lifting their fuel. If we could develop a viable method to get vehicles into orbit without them having to carry their fuel with them, we could drastically cut down on costs and maybe, just maybe, start contemplating extravagant missions like this.@PK nd said:What do you guys think about humans settling on the moon ?
@PK nd said:we WOULD NEED SOMETHING WHICH USES LESS fuel
wht about a spaceship kind of thing which uses fuel like hydrogen to move
Hydrogen is currently a common component in rocket fuel. The problem is that chemical propellants simply don't attain velocities high enough to get around this problem. Nuclear propulsion is quite a bit more efficient in terms of comparing the thrust to the mass of the fuel, but there are some pretty serious difficulties with getting large enough thrust to launch from the Earth's surface (safe nuclear propulsion has low power but lasts a very long time). There are some pretty clear radiation concerns related to increasing the power.@PK nd said:we WOULD NEED SOMETHING WHICH USES LESS fuel, cost effective and can take more people. Such kind of technology is not available but wht about a spaceship kind of thing which uses fuel like hydrogen to move . This can be use to transport astronauts to build a bio sphere in which we humans can basic needs . BUt not in near furure .
Well, we do know of a way to extract energy from the vacuum: the Casimir Effect. Unfortunately, it's only an extremely short-range effect that likely has no possibility of use for propulsion.Garth said:Let's not forget that some 68% of the universe's mass is in the form of Dark Energy, which repulses ordinary matter causing the universe to accelerate in its expansion, it is a form of 'anti-gravity'; now if we could only 'bottle it'...
Garth
Helium is one pretty major resource that's running out on Earth but pretty abundant on the moon. There are lots of others:rootone said:It would be a lot cheaper and more productive to place habitat domes (or whatever) on the currently uninhabitable parts of the Earth, such as large deserts.
There isn't as far as we know any part of the Moon which has large amounts of resources that are not obtainable on Earth.
There is also no science goal I can think of, so this would be just one hugely expensive vanity project for whichever nation decided to do it.
A moonbase would have the same kind of profitability: the people that build the required components need to be paid.rootone said:I would certainly support your view that a project of this nature, even if not very productive, is a better idea than dedicating enormous amounts of resources to wars.
I don't think wars will end any time soon though, for some people wars are a good earner unfortunately, a moon base probably not.
Fuel costs are a small fraction of the total cost of rockets. It's the structure that holds and uses the fuel that costs. Also, with ~5% payload more than 5% of the fuel is used for accelerating payload.Chalnoth said:I don't think anything like this is going to happen before we have a way to get into orbit without using rockets. Rockets expend about 99% of their fuel just lifting their fuel. If we could develop a viable method to get vehicles into orbit without them having to carry their fuel with them, we could drastically cut down on costs and maybe, just maybe, start contemplating extravagant missions like this.
There are many ideas. Personally I like the StarTram approach, but it would be a massive engineering project. Not the biggest one, however, and not the most expensive one either.There are some ideas to get around the limitation of rockets, but I don't think any have gone much beyond sketches on paper. A big issue is that some of them, such as the space elevator, are such absurdly massive engineering projects that it's going to be difficult to ever get them off the ground.
DaveC426913 said:Everybody's concentrating on HOW to go to the Moon. What about the less obvious question of WHY go to the Moon?
As a starting point, ask an even easier question: why not settle in Antarctica? It's remote, virgin, a lot like the Moon, only thousands of time cheaper, and opening a door won;t kill everyone in under a minute.
I'mot promoting moving to Antarctica, I'm simply pointing out that there got to be compelling reasons to put up with the inconvenience and danger of moving to a remote, hostile place.
Why climb mount Everest?DaveC426913 said:Everybody's concentrating on HOW to go to the Moon. What about the less obvious question of WHY go to the Moon?
As a starting point, ask an even easier question: why not settle in Antarctica? It's remote, virgin, a lot like the Moon, only thousands of time cheaper, and opening a door won;t kill everyone in under a minute.
I'mot promoting moving to Antarctica, I'm simply pointing out that there got to be compelling reasons to put up with the inconvenience and danger of moving to a remote, hostile place.
Yeah, but this is about settling - as in: making homes, jobs and futures.Chalnoth said:Why climb mount Everest?
Right, but it's a thousand times more economical to settle Antarctica, and yet we don't start colonies there.Chalnoth said:If we could make it reasonably economical to get to the moon, the moon would be an *amazing* place to do astronomy, for largely similar reasons that quite a bit of astronomy is done in Antarctica.
Because some people have more money and spare time than they know what to do with and would rather do something selfish instead of helping others.Chalnoth said:Why climb mount Everest?
Running out of room or resources will never be a reason to settle on the moon or anywhere else outside of the earth. There just won't be any way to transport enough people to make any difference. The only reason that will ever make sense is adventure.DaveC426913 said:Yeah, but this is about settling - as in: making homes, jobs and futures.
Right, but it's a thousand times more economical to settle Antarctica, and yet we don't start colonies there.
Again, I'm simply pointing out that the reasons we don't settle the Moon are the same as the reasons we don't settle any other less-than-hospitable place. We just haven't run out of room or resources here yet.
When I think of a moon base I don't think about ordinary people living and working there at all, I just think of it as the next step after the ISS , why do we go to ISS ? to do research on the effects zero of gravity etc on the human body etc and to conduct many other experiments . It can also serve a stepping stone to go to Mars. Martian geology and history is far more interesting for scientists now compared to the moon , we can learn how to manage the technical difficulties in a mission that can take years to complete, Mars might offers some unique challenges that the moon can't prepare us for , there are also discussions on the possibility of making rocket fuel on the moon using the water and other stuff available there but I don't think we have profitable methods for extracting them yet. http://www.dailymail.co.uk/sciencet...n-craters-help-signal-presence-lunar-H2O.htmlDaveC426913 said:Everybody's concentrating on HOW to go to the Moon. What about the less obvious question of WHY go to the Moon?
Yes, but this thread is about reality and actually, not fictionally, colonizing the moon. What does sci-fic have to do with that?HomogenousCow said:In most sci-fi universes, the Moon is either terraformed or possesses some unique natural resource that requires a large colony for extraction.
Perhaps I'm just putting emphasis on the OP's choice of the word 'settling'. I interpreted it to mean a place ordinary people could visit, or scientists could have as a home, not just a few months' rotation, like the ISS. Perhaps marry, and have children.Monsterboy said:When I think of a moon base I don't think about ordinary people living and working there at all,
Maybe the OP was a little vague, anyway if we build an ISS on the moon (LSS) given the amount of money and resources it will take, it will be a permanent base on the moon although it's inhabitants will be moving in and out.DaveC426913 said:Perhaps I'm just putting emphasis on the OP's choice of the word 'settling'. I interpreted it to mean a place ordinary people could visit, or scientists could have as a home, not just a few months' rotation, like the ISS. Perhaps marry, and have children.
More like ILS.Monsterboy said:... if we build an ISS on the moon (LSS) ...
Monsterboy said:Maybe the OP was a little vague, anyway if we build an ISS on the moon (LSS)
Janus said:Shouldn't that be ILS for "International Lunar Station"? Or maybe even ISS-2 (where the first S stands for "Selenic")?
Hmm.. Yes ILS will sound better.DaveC426913 said:More like ILS.![]()
@PK nd said:What do you guys think about humans settling on the moon ?
Most regions and even many countries on Earth are doomed without trade with others - at least if you don't want to fall back to pre-industrial levels.DrStupid said:It would be doomed if the supply stops for some reason.
Yeah. I don't think the raw materials would be nearly as much of a challenge as all of the infrastructure required to maintain a self-sustaining environment. You'd need a huge colony to contain all of the necessary manufacturing infrastructure just to maintain the habitat.mfb said:Most regions and even many countries on Earth are doomed without trade with others - at least if you don't want to fall back to pre-industrial levels.
Lunar regolith samples show up to 100µg/g for H, C and N. Source: Lunar sourcebook, page 444 (88 in the pdf). Not much, but a moon base would certainly try to avoid losing those elements, so a small supply can be sufficient. I guess (!) simply heating the rocks sufficiently in an oxygen atmosphere would extract a significant amount of those elements.
Certainly. I still say that the OP's question takes into account our current predilection for exploration, and is asking when do we make a home?@PK nd said:BUT human nature is to explore. One day we will reach on moon and the infrastructure for now can be for 5 - 8 people right ...
@PK nd said:What do you guys think about humans settling on the moon ?
@PK nd said:THanks for ur replies and ideas ...
2 yr back i participated in NASA AMES SPACE SETTLEMENT CONTEST 2013 and got an international rank 3 on my ideas on an orbital setllement but damn thts not possible as it requires loads of money , unbelievable number of materials and some big engineering sikils
GUY ! WE are talking about a city floating in space ...
A lunar space elevator is possible with current materials. It would probably need several rocket launches to get the material up (it cannot be too thin as it needs some resistance against micrometeorites), but then it would save a lot of launches as getting to the surface and back gets easier.marcus said:Better than moon, I think. Moon too much dry rock. Too much gravity. Big deal to land and take off.
I agreenewjerseyrunner said:We went to the moon the first place for the sole purpose of getting there before the Soviet Union
I disagree. I don't think the American people are up for another one of those pissing contests. The cold war was one thing but I don't think it translates well to today's global economy., we will do the same thing with China
More succinctly: He who controls the High Ground controls the battlefield. We'll see propaganda of missiles raining down on Americans.newjerseyrunner said:"If we don't do it, the Chinese will. Let's make american great again and beat the Chinese threat. God wants us too."
Much easier to launch them from the Earth's surface - with a shorter flight time and harder to detect.DaveC426913 said:More succinctly: He who controls the High Ground controls the battlefield. We'll see propaganda of missiles raining down on Americans.
Agreed. But we are talking about what will motivate Westerners to join the race. And no mere facts are going to do what the image of raining missiles will do.Garth said:Much easier to launch them from the Earth's surface - with a shorter flight time and harder to detect.
Monsterboy said:Whatever ! A space race is better and mindless military expenditure , I am looking forward for Space race 2 , although with wrong motivations it will still turn out to be useful in the future, I want to see people on Mars and a functional ILS. There is no gold mine on the moon, so very little possibility of a direct conflict. We will also see some private players like SpaceX etc. Believe it or not this is the only way major technological breakthroughs happen , through national pride and jingoism , arms race and space race.
marcus said:You are talking about permanent settlement, with some kind of economy---e.g. manufacturing fuel, chemicals, material, equipment needed elsewhere---and self-sustaining. Well-shielded from radiation, vacuum, meteorites, cosmic rays. Growing its own food. Plenty of water and mineral elements.
I think the best prospect is in the subsurface ice layer of Ceres.
People on Ceres would manufacture stuff that is in effect already in orbit, because of low gravity. Could trade at a premium.
So that is a good site for human habitat, permanent habitation with a growing population. Deep enough in the ice to be well shielded.
Artificial lighting and heating would be needed. Nuclear reactor fuel have to be imported from Earth probably. Still a good economic prospect.
Better than moon, I think. Moon too much dry rock. Too much gravity. Big deal to land and take off.. And Mars even worse.
You would make your own atmosphere and contain it in domes or underground tunnels.15characters said:It does not even have an atmosphere... and everything would have to be "shipped in" from the "Mother Planet" at great expense.
That's because national pride and jingoism is about " here is something I can do and you can't" attitude and planting your flags, collecting soil samples and not much more .After the competition is over people lose interest but the technologies developed will help the industry and future missions. Space settlements will take much longer time, money, dedication and a much better reason.marcus said:Why can't national pride and jingoism motivate something more intelligent than a camp on Mars? .
http://spacecolonization.wikia.com/wiki/Colonization_of_Ceresmarcus said:A settlement on Ceres, with its thick ice layer, could be productive (in low gravity) and make economic sense.
I think NASA's primary objective on Mars is to find out if life is/was present on it. Sending humans there might get the job done quickly compared to robots which are extremely slow , NASA doesn't seem to have any plans for a human colony anywhere right now.Jess H. Brewer said:But NASA is embarked on an insane dead-end politician's fantasy of going to Mars BEFORE setting up a station on the Moon. This is a scheme guaranteed to sour everyone on the idea of putting humans into space. It is a suicide mission for NASA as well as the astronauts who go to Mars. What are they THINKING?!
DaveC426913 said:You would make your own atmosphere and contain it in domes or underground tunnels.
Not everything has to be shipped in. The idea behind settling the Moon is to mine as many essentials as possible from the Regolith.
You just finished saying that it would have to be shipped to the Moon at great expense.15characters said:Yes but surely we can mine the rock here on Earth much more cheaply.
That's why you build underground.15characters said:Also the radiation on the moon could be a problem possibly?
We discovered large deposits of ice in some of the polar craters. That was a big deal a few years back, because water is one of the critical resources for a colony.15characters said:Finally, where would they get water and petrol from?
Which is why you build underground.15characters said:Also, any moon colony would spend 2 weeks in total darkness and 2 weeks in brutal solar radiation.
We're not going there for the view.15characters said:there is nothing to see there on the Moon - its just a big lump of inorganic rock.
Of course it is. But this thread is about settling the Moon.15characters said:Earth is so much better than the moon/rock.