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[–] think500 [S] ago  (edited ago)

You know about gravity, right? Wrong. Gravity is a 'Force' we observe.. but have almost no understanding of.
Force = Energy. Not much of a stretch from there.

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[–] TeranNotTerran ago 

Force has to come from energy, yes. When you drop a ball, it hits the ground and it's done. Maybe it'll bounce, but always to less than as high as it started. Say you could drop it an infinite distance and collect power along the way. You'd add drag. Yes, the gravity is fairly constant but does vary with elevation and you could gain some energy, but it would always be a loss vs getting the ball back up. Unless it could be doing some kind of perpetual motion, which is simply impossible. Gravity is the force between two masses. Our big earth has quite a bit of mass and has a force that acts on matter around it. We feel that as gravity.

Gravity is like a voltage charge in that it is a difference. That difference is what creates the potential (the force). Once the potential is balanced (you land), you can't get much more out of it. You're better off sticking with nuclear and calling it a day. It's about as free energy as we'll likely ever see in our lifetimes.

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[–] think500 [S] 1 point -1 points (+0|-1) ago 

Your information is obsolete, at best. And nuclear was a cheap profitable blunder that still threatens the population of the world. Just allowing these plants to be built demonstrated a total lack of regard for the well being of the human race.