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Originally Posted by Sani5
Is it really this simple to demonstrate the potential EM nature of gravity?
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In three words, yes and no.
The levitating coil, and other wire acts, usually involve one of two principles:
1) A very big coil will create a large magnetic field that will interact with any nearby magnetic fields. If you took that same coil and ran underneath a very high voltage power line, you could fry just about every thing. - It is a very dangerous thing to do, because it could just as easily burn up the wiring in your house, which might be supplying the lifting moment.
2: The 'lifter' has been talked about on BA before. You build a kite-like structure with the opposing poles of a TV high voltage circuit on two triangles of wire - one above the other. This one is also very dangerous, and quite cleaver: It works by the acceleration of ions from one wire towards the other, with a small insulator inbetween - the charges accelerating downward miss the second wire - so what you effectively have is an unefficent ionic drive!
On the other hand, I am of the opinion that ALL static (tribo) electric charges are related to extremely small perturbations in gravimetric fields. This is why finely divided insulators, like nylon carpet and cat fur, generate static so easily: Whenever anything moves, the gravitational fields must be realigned. With all of the independant motion in fury objects, the potential for reducing the frequency of these gravitation activities to a level that they will interact with an electron is very high.
It is exactly like radar and a swarm of insects. 1m radar will not bounce off of one locust, but 1m radar can easily detect a swarm. Likewise an electron is oblivious to a gravitational field...unless the field is severly aggitated, producing much lower frequency harmonics that an electron can sink its teeth into.
Suggesting gravity is electromagnetic in nature doesn't make it any easier to defeat the effects of gravity. We can electromagnetically defeat gravity now - even rocket fuel is electromagnetic at fundamental levels.
Remember, this is the ATM board, and these answers will not fly in your science or physics class...but they might in another decade or so, as more researchers realize we need a better explanation for lightning and other static effects.