In my readings a new concept came up, that of a space siphon. The idea is to get water from the earth’s oceans to the moon, then Mars and Venus all without external energy. Object is terraform and providing resources at those places in the meantime.
So this breaks into 3 parts:
1 - Possibility of the ‘free’ trip to space (at the expense of the earth slowing). This is not a ‘true siphon’ as in it’s not just a tube of water pulling itself along. The concept is that the water moved up beyond geosync would generate a force pointing away from the earth, that force would be used to pull the water behind it, including the water all the way from the surface. The siphon is long enough that the claim is that the outward beyond geosync is greater then the total inward to the surface. The means of this force transfer is not mentioned, but it seems to be individual cars perhaps on a conveyer belt (though that last part is not mentioned), and not a continuous stream. Does the energy equation work out (which i assume it would)? Is there a known theoretical way to have this work?
2 - (regardless of part 1) Getting that water to the moon and beyond? Could it be just released to be flung accurately to it’s target?
3 - What happens on the moon, mars assuming the water does make the trip, does it snow, rain, get pounded by a great big ice rock, get a atmosphere of humidity?