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Special Theory of Relativity

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The Special Theory of Relativity is one of Albert Einstein‘s theories developed in 1905 which, in its most basic form, says:

  • in non-accelerated (i.e. inertial) frames of reference, physical laws always and everywhere apply regardless of the frame of reference and
  • the speed of light (in a vacuum) is constant independent of the speed of the observer

Because the speed of the observer is a frame of reference, the above statements seem to conflict. To resolve these apparently conflicting statements, complex equations were developed, leading to the famous e=mc², where ‘e’ is energy, ‘m’ is matter, and ‘c’ is the constant speed of light.

English: USSR stamp dedicated to Albert Einste...

USSR stamp dedicated to Albert Einstein (Photo credit: Wikipedia)

According to this equation, mass increases with velocity and decreases with a loss of energy.

The implications of this theory are profound. In essence, space and time are interwoven, and not separate entities. Wikipedia says:

Time and space cannot be defined separately from each other. Rather space and time are interwoven into a single continuum known as spacetime. Events that occur at the same time for one observer could occur at different times for another.

What follows from this is hard for many to understand. But it has been experimentally supported:

We are each in our own, individual spacetime because we have each moved in unique directions and velocities in our lives.

So, according to this theory (and the evidence that supports it), while it appears that many events happen at the same spacetime among us, they do not. The reason it appears that things happen at the same spacetime is due to the extremely tiny spacetime differences among us.

Related Posts » General Theory of Relativity

 

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2 thoughts on “Special Theory of Relativity

  1. The first statement is correct, except that the quality of relationship between reference frames is either degraded or enhanced.

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