Question

what is the concept of Artificial Gravity? Is it Possible?

Answer 1

Usually it means using electromagnetic forces -- electricity flowing through some kind of superduper weird circuit -- to eliminate or cancel gravity on *uncharged* objects. No, this is not possible, even theoretically.

There are number of ways to provide a force to replace gravity, e.g. if you are on a space station you can spin the station to provide a centripetal force that mimics the force of gravity for people inside the station. You can provide a (momentary) increase in the apparent gravity people feel by accelerating them up in an elevator, and you can (briefly) remove the effect of gravity they feel by letting them fall freely (e.g. in an elevator with the cable cut, or in a diving airplane).

You can provide more compact sources of gravity in principle, e.g. black holes or tiny amounts of neutronium (although how you keep these stable and under control is an interesting question). In some sf stories these are used to provide gravity or cancel other sources of gravity (lke the masses of planets).

In principle any concentration of energy equals a concentration of mass, and therefore exerts gravity. So, for example, a capacitor at full charge exerts a tiny bit larger gravitational force on nearby objects than the same capacitor uncharged. If you could gather electromagnetic energy in sufficient amounts, you could in that way provide a source of gravity, but the amount of energy needed is substantial: E = m c^2, where c = speed of light, gives the energy E needed to add up to the equivalent mass m. So this isn't really practical.

Answer 2

Thank dear...