Board Thread:Off Topic/@comment-17897872-20160527012320/@comment-29133680-20160602133323

In  physics,  spacetime is any  mathematical model that combines  space and  time into a single interwoven  continuum. Since 300 BCE, the spacetime of our  universe has historically been interpreted from a  Euclidean space perspective, which regards space as consisting of  three dimensions, and time as consisting of  one dimension, the " fourth dimension". By combining space and time into a single  manifold called  Minkowski space in 1905, physicists have significantly simplified a large number of  physical theories, as well as described in a more uniform way the workings of the universe at both the  supergalactic and  subatomic<span style="color:rgb(37,37,37);font-family:sans-serif;font-size:14px;font-weight:normal;line-height:22.4px;"> levels.