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Originally posted by Liberal1984
It's an idea I've had myself, so I'll tell you the problems that caused me to give up on it...
1. At sea level you need 1Meter3 of Helium to lift 1kg. By the time atmospheric pressure has halved you need 2 M3 to lift 1kg.
If the rocket fuel weighs as much as water... then
1litre of water = 1kg, one Meter3 of water = 1000kg = 1 tonne.
2. Also helium would not work as it's too expensive for something that gets destroyed by take of. So this means you need to use hydrogen, which although providing 1.1kg of lift, per meter3 is explosive.
Originally posted by LifeIsEnergy
Not to burst your bubble, just a couple of thoughts. Human's are not ready to have personal spacecrafts, even if this was possible, which i'm sure it is. But if we cannot get along on earth, can you imagine what would happen if we were 'hanging out in space', lol. Sorry, i feel your point, but I think the smarter move would be to create a free form of energy that everyone could use, then we could grow out of our fears and begin to think about collectively enjoying what's beyond earth.
Originally posted by JIMC5499
The most economical way to get large amounts of people and material into space was Project Orion. It is a shame that it wasn't too environmentally friendly.
The dream of a Space Elevator is a monumental one. A vision that will not only further space exploration and knowledge, but has the potential to shape the existential future of the human race for centuries to come.
For the first time since it was initially conceived, this dream is now within our reach.