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Prasun-rick
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I was studying electrostatics when I came across an idea if gravity just like electrostatics be repulsive in nature with something..Is there such things which repel gravity?...Thanks in advance
Loosely: gravity is the force attracting masses so "repel gravity" makes no sense. Forces may be repulsive, but you cannot repel forces.Is there such things which repel gravity?...
Sir @Simon Bridge thanks for the comments,I would definitely surf for the "anti gravity" discussion !.Simon Bridge said:Loosely: gravity is the force attracting masses so "repel gravity" makes no sense. Forces may be repulsive, but you cannot repel forces.
You'll see that with electromagnetic charges, like charges repel ... whereas, if we treat mass as the gravitational charge then we see like charges attract (and we only ever find positive charges).
This, I suspect, is the idea you have come across.
All this means is that it may not be useful to think of gravity as a force like the electromagnetic force between charges.
(This is pretty much the standard way to understand gravity: as a pseudoforce arising from geometry vaguely analogouse to centrifugal force arising from rotation. A negative gravity would be like postulating an inwards-pointing centrifugal effect.)
Still, there is quite a lot of discussion about a possible physical basis for antigravity ... ie. see "cosmological constant" and "exotic matter".
Please do not post nonsense here at the PF. Please re-read the PF rules under INFO at the top of the page. Thread is closed.Prasun-rick said:Sir @Simon Bridge thanks for the comments,I would definitely surf for the "anti gravity" discussion !.
No, to the best of our current scientific knowledge, nothing can repel gravity. The force of gravity is always attractive, meaning that it pulls objects towards each other.
There is currently no evidence or scientific basis for anti-gravity technology. The concept of anti-gravity goes against our understanding of the laws of physics, particularly the law of gravity.
No, there are no known substances or materials that can naturally repel gravity. All objects, regardless of their composition, are subject to the force of gravity.
There is currently no technology or scientific evidence to support the creation of a force field that can repel gravity. The force of gravity is a fundamental force of nature and cannot be easily manipulated or controlled.
No, gravity cannot be cancelled out. Gravity is a fundamental force and cannot be eliminated or neutralized. However, its effects can be countered or reduced through other forces, such as the force of lift in airplanes or the force of magnetism in magnetic levitation.