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Originally posted by DalairTheGreat
actually not as much as u think. bring it up im pieces put it together in space . an then it wont need huge amount of fuel. once it gets moving things like sprits of co2 can keep it facing the right way
1. Cheap, Small and Powerful energy source. I favor Ground based lasers personally as it doesn't require you to haul heavy, complex and potentially dangerous reactors on board.
2. Devising a way of manufacturing and refining in Zero-gravity vacuum environments.
This will be needed as such a large wessel will have to be built in orbit.
This would force us to re-invent the wheel in many instances because we just don't have the know-how.
3. Efficient transport of Materials to the Space "Dry Dock." The best way to do this is Lunar mining using rudimentary maglev slingshot to deliver refined ore payloads to the building site.
Again this will require us to invent a whole new host of technologies to deal with the problem at hand.
4. Devising a way of creating uniform artificial gravity. Centrifugal force is not enough and creates G imbalances throughout your body which could be detrimental to the health of the "Colony Ship."
Originally posted by pepsi78
I dont know how lasers would make propultion work, I only chose nuclear power because it would be a soulution for the propultion as well as a solution of powering the whole ship, remember it's a big ship.
Can there be a way to reduce zero gravity effect ? or a solution like magnetic boots.
Not really , if it's such a big place then why not make componets for it on the ship.
Being a big place would permit the implementation of a asembling factory.
I dont think that would work, the shell of the ship would be in orbit, how do you plan on going to the moon and mining for days with all that radiation around you, I would agree if there would be unmaned space flights to the moon , an automatic program.
The shell, and only the shell can be built out of the fuel container from the space shuttle, it dumps it any way , so why not use it, you would have material every time a space shutle go's in space.
some one would need to glue them every time a shuttle go's in space, one at the time, just glue the containers toghether until they add up ,I would design a new container more flat that nassa can cary fuel in it and once it dumps it then use it for the building of the shell, so nasa would not have to carry extra stuff at least for this fase.
next fase would be to build artificial life suport inside the shell, now that can be done it 2 diferent ways , either you cary plants and little trees or even one medium tree at a time can fit in the space shuttle, or you can grow them by planting seeds inside the shell.
I think it would be a good idea to just take them from here and get them up there, I think 3 meeter trees would fit in the space shuttle, this can be done each time nasa go's up.
Next would be the asembly of a small factory inside the shell once life suport is present, if nasa can cary satelites inside it's shuttle then I dont see the problem of carying such things one by one to asemble something automated up there.
That would be a problem, isnt there any other way?, like I said before magnetic boots.
How do you propose to accomplish that with current technology? Manufacuring in an Artificial Gravity or Zero Gravity environment needs specialized equipment(which doesn't exist as of yet).
It would be much cheaper to mine, refine and possibly manufacture components on the surface of the moon and then ship them up via Maglev slingshot in a tragectory which will have it intercept the "Drydock" facility at a managable speed. Gravity is really usefull in manufacturing processes as it saves energy(letting the gravity do the work for you is drummed into you in first year engineering school ).
The shuttle tanks are made of aluminum-lithium, it is one percent lithium, four percent copper, 0.4 percent silver, 0.4 percent magnesium, with the remainder being aluminum. Good for a fuel tank and possibly some internal components, bad for the outer shell.
Artificial Life Support will not be sustainable for a long haul journey to another solar system.
You can't just plant trees up in a colony ship and expect it to provide for us.
All of our efforts to achieve this feat on Earth have all met with failure
Natural Life Support is still too primitive to attempt. Look up the Bio-Sphere projects. A Third project is needed soon though just to see if we can create a self-sustaining biosphere here on earth first. We have yet to do that you know...
Magnetic boots won't pull help you excersize muscles and bones. Magnetic boots would help for ease of travel, the only other way is centrifugal force, and as I said before, that doesn't provide even gravity fields. On a centrifugal bycicle on the ISS, they've measures G in excess of 1.5 near the feet and 0.3 near the head(the feet were pointing outwards). On earth, it's 1.0 from head to toe at sea level.
We are talking about ship plating, can a forge work in space,
as for the engine you dont neserarly have to construct it, asembeling the parts caryed on the station and building them on the station is diferent.
Anything as esential parts can be taken on the space station and asembled there, people fix things while they moon walk.
Even making a simple moon base on the moon with out mining is a serios problem, I have been over this, it's simply imposible to protect against gamma on the moon, we are talking about months on the moon, nasa has it's own issues witht the moon, but I would agree if it were posible.
previos space stations were build from this material, they were build from fuel tanks and they lasted for a long time, the idea is that it wont have to be in motion while it has only that type of shell, the station would be stationary , the idea is to be able to host people in orbit , further ship plating would be reqired in orther for it to travel and to become a ship.
it does not even matter we dont have the tec to go out of the solar sistem, no viable propulsion sistem, if it can get us on mars, it would be something, see the other plantets in the solar sistem, check out europa , check out mars and the other planets , maybe we could fint other tipe of resurses on other planets that can open up dors, the solar sistem that we live in has alot to show, the first step is to start traveling at least to closer planets.
That is because it has not been tried on a larger scale
I'm not talking about 100% life suport from the plants, just makig it last a bit more, a solutuion for traveling in our solar sistem, something that would extend life suport for a while.
While there is no way yet for sustaining life with a bio sistem, there is proof that it will sustain it to an amount of procent making it last longer.
then no matter what ship we send small or big, it would face the same problem, if astronauts spent around an year on space stations then why not pull out of the bag a trip to mars and back