Question

Define relativity in brief. ​

Answer 1

Answer:

the quality or state of being relative

b: something that is relative

2: the state of being dependent for existence on or determined in nature, value, or quality by relationto something else

3a: a theory which is based on the two postulates (1) that the speed of light in a vacuum is constant and independent of the source or observer and (2) that the mathematica

Answer 2

Answer:

According to Einstein, then, time is relative to the observer, and more specifically to the motion of that observer. ... One casualty of the Theory of Relativity is the notion of simultaneity, the property of two events happening at the same time in a particular frame of reference.

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