author=Grumpy link=topic=3638.msg68334#msg68334 date=1529029053] OK, so buoyancy requires gravity to pull the floating object into the fluid, but it's not a source of energy. I was referring to a ball rising to the top of a column of water,but anyway Stay with me here Grumpy,and i'll show you gravity being an energy source--and your going to help me confirm it Lets say we have a tube and some other components, that weighs say 10,000KGs in total. That tube is 1 meter in diameter,and 10 meters high. On top of this tube is an ideal generator,which has an ideal propellor attached to it. Inside we have an ideal battery pack,which is drained of all it's energy<-- the other components. Now,we are going to raise this device up into space until we reach a point where the gravitational pull from the earth is only 1% of what it is here on the earths surface. We are stopping at this 1% position,so as the device will fall back to earth by it self. On the way back down to earth,the !ideal! propellor is turning the !ideal generator,which in turn is charging the !ideal! battery bank. The energy required to lift the device to the 1% gravity point is X amount. What will be the energy recaptured in our !ideal! battery bank on the devices descent back down to earth,where we assume no other losses in the descent ?. Brad.
« Last Edit: 2018-06-17, 01:20:56 by TinMan »
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