Theory of relativity is a combination of two different theories or says two different combinations. First, one is Einstein’s special relativity theory and second one is general relativity theory. Concepts included in theory of relativity consider space-time as a single unified entity. According to concepts of theory of relativity, following are the elements of unified entity of space-time:

  • Space and time (of course)
  • Relativity of simultaneity
  • Kinematic
  • Dilation gravitational time
  • Length contraction

Term of relative theory was firstly used by Max Planck in 1906. The whole theory of relativity is based on this term. Max Planck described how the principles of relativity theory could be applied on practical events and various theories. Later on, in the same discussion term Theory of relativity was used by Alfred Bucherer.

Would you like to read the full article?