how does the theory of anti gravity work?

Question

how does anti gravity work

Answer 1

It doesn't, but it can make for readable science fiction.

Our present scientific understanding tells us that the local (Newtonian) gravitational acceleration ALWAYS points towards the local direction in which time is running SLOWER. (One strong field limit is when it stops running altogether, from the point of view of a distant observer. THAT is at the EVENT HORIZON of a Black Hole.)

The local direction in which time runs slower is itself determined by the distribution of matter and energy in the Universe, and is generally dominated by the presence of one or more relatively nearby bodies. So the task facing hopeful "anti--gravitists" is to somehow reverse the local direction indicating the relative rates in the running of time! Can that be achieved somehow?

Some may wish to consider that an open question. I personally don't see how you can locally and determinatively have the control to completely turn around that direction in your own locality. For that reason, I doubt that anything like an "anti-gravity shield" or anything else being currently pursued, could ever work or be of any practical use. These general considerations seem to argue against success. It therefore seems a great pity that LARGE amounts of research funds have beeen wasted on such a fruitless search, by various U.S. government agencies, since the late 1940s.

Live long and prosper.

Answer 2

Anti-gravity is a recurring theme in science fiction, particularly in the context spacecraft propulsion. Often a special "gravity shield" or "anti-gravity force field" cancels the effects of gravity, allowing a spacecraft to accelerate. Science has, as yet, failed to find any such force, and the present laws of physics appear to rule out the possibility of anti-gravity. Nonetheless, some have studied possible methods of achieving such effects.

http://en.wikipedia.org/wiki/Anti-gravity

Answer 3

Gravity is a stress that keeps us down on the floor. explanation why we don't "pick the flow" away is by technique of the fact Isaac Newton's third regulation of motions states that there is a opposite stress equivalent to gravity, retaining us to the Earth. Now if there grew to become into one greater stress only before the single already present against gravity, then we would be going against gravity. it ought to artwork, even however forces arn't creatable, yet.

Answer 4

the opposite of gravity

Answer 5

There is no such thing in real life.

Gravity is a purely attractive force that acts on everything - mass and energy.

Answer 6

that everything floats around like in space I gues, where there is no gravity

Answer 7

Not very well at all.

That's why there's no flying cars around.

Next dumb question.

Answer 8

I'm sooooo goth and soooo cool.

Answer 9

I'm not so sure....