There are other stable points in the Solar System, that require only enough fuel as it takes to get there, and that is asteroids. You land on one, no more fuel needed. Just find one or two in the right orbit and a good resonance with Earth and Mars, and you have a free ride. The only hard part is that asteroids tend to tumble through space, changing their orientation constantly. Tethers could be used to slow that rotation, making a consistant orientation.
I think this would also be good for checking for brain function at all. It could be used to determine the point of brain death. Might also stop all those nasty zombie jokes...
Correct me if I'm wrong....the Earth is a closed loop system, mostly.
There is some escape to space, but mostly what we produce comes from what we consume.
So, any water we release to the atmosphere had to already come from the atmosphere. We already have evaporation that produces water vapor in the air, so how can we cool the planet more that it already would have if we had done nothing?
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There are other stable points in the Solar System, that require only enough fuel as it takes to get there, and that is asteroids. You land on one, no more fuel needed. Just find one or two in the right orbit and a good resonance with Earth and Mars, and you have a free ride. The only hard part is that asteroids tend to tumble through space, changing their orientation constantly. Tethers could be used to slow that rotation, making a consistant orientation.
Forget time travel, lets just use the Infinite Improbability Drive! There's an infinite improbability that we'll get where we want to go, but we'll probably arrive as a petunia! http://en.wikipedia.org/wiki/Improbability_drive#Infinite_Improbability_Drive [wikipedia]
I think this would also be good for checking for brain function at all. It could be used to determine the point of brain death. Might also stop all those nasty zombie jokes...
Correct me if I'm wrong....the Earth is a closed loop system, mostly.
There is some escape to space, but mostly what we produce comes from what we consume.
So, any water we release to the atmosphere had to already come from the atmosphere. We already have evaporation that produces water vapor in the air, so how can we cool the planet more that it already would have if we had done nothing?