I think that there is a good arguement that gravity is a field capable of converting potential energy into kinetic energy in the direction of the source. If it is shown to be right, then one has to contemplate the possibility of finding out how to reverse the polarity of the field.
You're right. Gravity is defined as the force exerted by all objects having mass on all other objects having mass.
The only way to harness energy from gravity (or any other force) is to displace its property of influence within its field, in which case you need energy to begin with. When a hydroelectric plant generates electrical energy it uses the potential energy of water, when a nuclear plant generates electricity it uses the energy of sub-atomically unstable materials.
Last edited by Astner on Nov 15th, 2012 at 08:41 PM
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Nov 15th, 2012 03:03 AM
