Thread: Space Time
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Dec29-11, 01:28 PM
P: 248
Quote Quote by nitsuj View Post
Maybe I need to ask it differently,

Why does c have to be squared (why are the terms squared in the first place)?

I'm pretty sure I've heard it has to do with the units (physical units I assume). Im just trying to piece that together.
Nope, it's just the pythagorean theorem. The distance between any two events in a two-dimensional world is √(x2 + y2). In a three dimensional world with an "imaginary" time dimension being measured in seconds, it's √(x2 + y2 + z2 - (ct)2)