Is there such a thing as negative gravity?

Question

So there's matter and antimatter, black and white, light and dark. The universe seems full of opposites. However is there such a thing as negative gravity? Is gravity the only constant force in the universe?

Answer 1

As far as physicists there is no such thing as anti-gravity.

Answer 2

Anti-gravity can not exist classically. But if we take quantum mechanics into account then a region of space can have a negative energy density. This would have a repulsive gravity field.
Negative energy densities are hard to produce. The Cassmir Effect is one way to make a little bit of negative energy. The space between two parallel metal plates very close together has less virtual particles in it than ordinary free space.

Answer 3

nicely there's a theory that dark potential has a sort on anti gravitational effect the explanation for it is that astronomers have got here upon that the universe is increasing quicker and quicker. If gravity replaced into the only rigidity, different than for electromagnetic, interior the universe the growth could have slowed down by skill of now. in addition they beleave that there are extra “dark potential " partials interior the universe then any over type of mater (each element on the periodic table). dark potential partials push each and each over away and in turn push on each element ells. As for magnetism, it particularly is the main effectual rigidity interior the universe yet works on a deferent way then gravity. that's what I comprehend. I study a e book by skill of Pedro G.Ferreira - The State Of The Universe. very stable e book in case you have an interest in that style of element.

Answer 4

Distance - you can walk four miles North or four miles south, they are opposites, for example, but there is no negative for distance.
Speed - obviously you cannot travel a negative rate.

You cannot give birth to a negative number of children ( hahaha)

You deposit a negative amount in your account ( you either deposit or withdraw).