Einstein's Theory of Relativity proposes that gravity, time, energy and matter are all tied together. Changes in one affect the others. Each must be viewed relative to the others. Among other effects it supposes that:
1. The faster you go the slower time passes. If you put a clock on a fast rocket which eventually curves around and meets you, the clock will be running "slow" against a standard clock that you kept with you. Strangely enough an observer on the moving rocket would see his clock acting normally and the stationary clock as moving faster.
2. The faster you go, the shorter an observer standing still would see you. The reduction of length happens in the direction you are traveling. Anyone moving at the Hugh sped would see his length staying the same.
3. Energy and mass are equivalent and can be swapped one for the other at a rate shown in Einstein's famous equation (E = mc2). This can be shown to demonstrate that the faster you go the massier (heavier) you get. That is another math heavy story.
Humorists have made light of the definitions of the Theeory (e.g. Einstein once said," ... It's like when you sit next to a pretty girl for one hour, and it feels like an minute, as opposed to when you sit on a hot stove for one minute, and it feels like an hour. That is relativity.") mainly because understanding it cannot be done in anything but math-speak.
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General relativity is a theory of gravitation developed by Einstein in the years 1907-1915. The development of general relativity began with the equivalence principle, under which the states of accelerated motion and being at rest in a gravitational field (for example when standing on the surface of the Earth) are physically identical. The upshot of this is that free fall is inertial motion: In other words an object in free fall is falling because that is how objects move when there is no force being exerted on them, instead of this being due to the force of gravity as is the case in classical mechanics. This is incompatible with classical mechanics and special relativity because in those theories inertially moving objects cannot accelerate with respect to each other, but objects in free fall do so. To resolve this difficulty Einstein first proposed that spacetime is curved. In 1915, he devised the Einstein field equations which relate the curvature of spacetime with the mass, energy, and momentum within it.
Some of the consequences of general relativity are:
Technically, general relativity is a metric theory of gravitation whose defining feature is its use of the Einstein field equations. The solutions of the field equations are metric tensors which define the topology of the spacetime and how objects move inertially.
Albert Einstein's biggest discovery was the theory of relativity, which revolutionized our understanding of space, time, and gravity. This theory is comprised of two parts: special relativity and general relativity. It has had a profound impact on physics and cosmology.
Albert Einstein's theory of general relativity was published in 1915.
the theory of relativity & quantum mechanics.
Special Relativity 1905 General Relativity completed 1915 published 1916
The theory of relativity was created by Albert Einstein in the early 20th century. It consists of two parts: the special theory of relativity, published in 1905, and the general theory of relativity, published in 1915.
The theory of relativity. There are actually two - the special and the general.
Albert Einstein is the developer of the theory of relativity. His groundbreaking work consisted of two theories: the special theory of relativity, published in 1905, and the general theory of relativity, published in 1915.
Albert Einstein's theory of relativity consists of two parts: special relativity and general relativity. Special relativity describes the relationship between space and time, while general relativity explains how gravity is a result of the bending of spacetime by matter and energy. These theories revolutionized our understanding of the universe and have been confirmed through numerous experimental observations.
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general theory of relativity!
The theory of relativity was introduced by Albert Einstein in 1905 with his special theory of relativity, and later expanded with the general theory of relativity in 1915.
Theory of general relativity - Albert Einstein (1916)