The “speed limit” of gravity, so to speak, is thought to be the speed of light.
Gravity was first scientifically explained by Isaac Newton in the late 1600′s. He thought that gravity existed as a force between two objects, and that gravity traveled instantaneously across space – that, for example, Earth immediately “felt” the sun’s pull, and that, if the sun disappeared, Earth would instantly fly out of orbit into the void of space.
But when Albert Einstein developed his special theory of relativity in 1905, he concluded that no signal in the universe could travel “instantaneously.” He believed that nothing could travel faster than the speed of light – about 300 thousand kilometers, or 186 thousand miles per second. Not even the tug of gravity.
Gravity, Einstein proposed, is not a force that travels out from a massive object to tug instantly on everything around it. Rather, gravity is a “field” that bends space and time.
Today’s scientists theorize that gravity may be mediated in space by a particle called a “graviton.” According to this theory, this particle is massless, and transmits gravity at the speed of light.
Work in discovering and testing this particle is still ongoing.
But under gravity we fall at 9.8 m/s2?
The speed of the Earths gravity is 9.80665m/s2(meter per squair second)
I think you guys are confused. This article is about the speed of gravitational influence, or how fast gravitational information travels through space. Not how fast an object falls in earth’s gravity.
Yeah jack, You are right. This is about the speed of gravity. M-theorist believe that gravity travels at the speed of light and it is a particle called graviton. Now, There is a problem, according to black hole theory, no particle can come out of a black hole even it is moving with the tremendous speed that is why light can not come out then how does gravity comes out? This truly corresponds that if gravitons exists, the black holes should not exist and v.v. Which one is right, no one knows the answer.
there is no speed for gravity,no gravitons either. if a collasped star had no weight to it then there wouldnt be a black hole.picture this, put an orange on a pillow and look at the surrounding indentation. thats gravity.if you had to discribe it,. black holes prove gravity exists and has mass,and is probably an electrical-magnetic field.it was always present in the universe before the big bang . if it was part of the big bang then the universe could not exist. there would be nothing to slow everything down to what it is now and we are still expanding.enough for now. tj
This has long been proved since the time of discovery of black holes that the speed of light is not the fastest. Black holes do not allow even light to escape. It means the escape velocity at the black holes is much higher than the speed of light. Black holes are the infinitely dense ball of gravitation force. All creational forces of the universe have originated from the gravitational force field and will end up in it. The speed of light is no doubt fastest in our solar system. The source of light is Sun in our solar system. But how this light is originated? We should study the various stages involved in the formation of a star. Our Sun is also a star.
The starting material for the formation of a star is mainly hydrogen gas and helium gas. If the hydrogen cloud contains a very large number of atoms, each atom feels the gravitational pull of all the atoms in the hydrogen cloud. (Here is NO LIGHT)
The gas cloud becomes a permanent entity, held together by the mutual attraction of all the atoms present in it. The cloud then begins to contract under its own gravity setting off the process which will convert this huge condensed gas cloud into a star. Such a tight contracting cluster of atoms held in the grip of its own gravity, is called a protostar. The protostar is not yet a star and does NOT emit LIGHT. The temperature of this star is as low as -173 degree C.
The force of gravity acting on different atoms in the protostar draws every atom towards centre. As a result, the protostar shrinks in size and its density increases. As the atoms in the protostar fall towards the centre, they pick up speed. Because of the high speed and greater density of atoms, the atoms in the gas cloud collide with one another more frequently, thereby raising its temperature from -173 degree C to about 10 ^7 degree C. At these extremely high temperatures the proton (hydrogen nuclei) at the centre of the protostar collide together and undergo a nuclear fusion to form helium nuclei. In this reaction a tremendous amount of energy is released. This further raises the temperature and pressure. The release of nuclear energy marks the birth of the star. The protostar now beings to GLOW and becomes a STAR. Here at this stage LIGHT is ORIGINATED. Thus light is NOT ETERNAL. It has a beginning and an end. So LIGHT cannot be claimed as Cosmic Constant. However, Gravitation Force is eternal.
It is evident from the above description that light is latent before the birth of star. Light originates and become kinetic only after the action of gravitation force. So the speed of light can never exceed the speed of gravitation force. It cannot be ruled out that the speed of gravitation force is infinitely greater than the speed of light at black holes.
Kind regards
Anirudh Kumar Satsangi
P.S.
1. Gravitation Force is the Ultimate Creator
2. In Scientific Terminology Source of Gravitational Wave is God