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Space is the boundless three-dimensional extent in which objects and events have relative position and direction. Physical space is often conceived in three linear dimensions, although modern physicists usually consider it, with time, to be part of a boundless four-dimensional continuum known as spacetime. In mathematics, "spaces" are examined with different numbers of dimensions and with different underlying structures. The concept of space is considered to be of fundamental importance to an understanding of the physical universe. However, disagreement continues between philosophers over whether it is itself an entity, a relationship between entities, or part of a conceptual framework. Modern Physics:Gravitation:http://youtu.be/STrXFteB66Y How The Human Mind Was Born:http://youtu.be/-9_Mo8Pxq-s The Voyage To Pluto:http://youtu.be/ls7LWOcQfi8 Athene`s Theory of Everything:http://youtu.be/-JoaBSI0OhU String Theory:Theory of Everything:http://youtu.be/asd617P6i2Q Universe or Multiverse:http://youtu.be/Nuz5EtbzlUc