What is general relativity simple definition?
General relativity is a theory of space and time. The central idea of general relativity is that space and time are two aspects of spacetime. Spacetime is curved when there is matter, energy, and momentum resulting in what we perceive as gravity. The links between these forces are shown in the Einstein field equations.
What does general theory of relativity say?
Einstein’s 1915 general theory of relativity holds that what we perceive as the force of gravity arises from the curvature of space and time. The scientist proposed that objects such as the sun and the Earth change this geometry.
What is Einstein’s theory of gravity?
GETTING A GRIP ON GRAVITY Einstein’s general theory of relativity explains gravity as a distortion of space (or more precisely, spacetime) caused by the presence of matter or energy. A massive object generates a gravitational field by warping the geometry of the surrounding spacetime.
What is Einstein special theory of special relativity?
Special relativity is an explanation of how speed affects mass, time and space. As an object approaches the speed of light, the object’s mass becomes infinite and so does the energy required to move it. That means it is impossible for any matter to go faster than light travels.
What does relativity mean in physics?
Relativity is the word for how things only have importance in relation to other things. In physics, relativity refers to Einstein’s theory that time and space are not absolute. For example, time partially depends on our perceptions of it: time is relative.
What is importance of theory of relativity?
The theory explains the behavior of objects in space and time, and it can be used to predict everything from the existence of black holes, to light bending due to gravity, to the behavior of the planet Mercury in its orbit.
Why is General Theory of Relativity important?
General relativity has developed into an essential tool in modern astrophysics. It provides the foundation for the current understanding of black holes, regions of space where the gravitational effect is strong enough that even light cannot escape.
Who is great Newton or Einstein?
Both agreed Newton did more for science and humanity. 86.2 per cent of scientists preferred Newton’s science and 60.9 per cent of them acknowledged his greater benefits to mankind. Einstein had to stand on Newton’s shoulders to reach for his own scientific ideas.
Can you explain Einstein’s theory of relativity?
Albert Einstein, in his theory of special relativity, determined that the laws of physics are the same for all non-accelerating observers, and he showed that the speed of light within a vacuum is the same no matter the speed at which an observer travels, according to Wired.
What is relativity motion?
Relativity in motion assures us that the laws of Physics don’t vary depending on how much inertia an object has. This is important because everything has some amount of inertia. Standing on the surface of the earth, we feel that we are not in motion, but because the earth is moving, so are we.