Monday, June 29, 2015

Spacetime and Time Dilation in Science Fiction (part 1)


What is the fourth dimension? It is generally referred to as “spacetime,” the unification of time and space as a four-dimensional continuum. More and more science fiction these days involves spacetime in some form, and it is an intriguing concept. The Yahoo space comedy “Other Space” and the recent movie “Interstellar” both come to mind as examples of how time might behave differently in other parts of the universe. It is a complicated concept, one that involves “special relativity” and other theories advanced in physics, but there are some basic tenants that we can grasp without holding a degree in quantum physics. To put things very simply, time is relative to velocity and the strength of gravity.

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