Naked Science Forum

General Science => General Science => Topic started by: theCoolScientist on 04/03/2015 02:13:39

Title: Do we travel at the speed of light in the dimension of time?
Post by: theCoolScientist on 04/03/2015 02:13:39
We travel at the speed of light in the dimenson of time.what is the meaning of this?i am referring to minkowsky space
Title: Re: Question for relativity specialists
Post by: PmbPhy on 04/03/2015 07:07:31
We travel at the speed of light in the dimenson of time.what is the meaning of this?i am referring to minkowsky space
The concept of speed as you're using it is a misnomer because speed is distance traveled per unit time and in this context "distance" does not have the same meaning that you're used to, hence the confusion. The distance isn't a distance at all. It never should be called that in fact. When people use that notion they're thinking of the magnitude of something called the metric. In Euclidean geometry the expression for the metric is

6a377852f4eeb247cb4d2f330d3435e2.gif

For two closely spaced points. In this case the "distance" between the points is c269831971eee08a97469fb93611d015.gif .