How does one get time dilation, length contraction, and E=mc^2 from the spacetime metric?(adsbygoogle = window.adsbygoogle || []).push({});

Suppose all that you are given is x_{1}^{2}+ x_{2}^{2}+ x_{3}^{2}- c^{2}t^{2}= s^{2}

How do you derive time dilation, length contraction, and E=mc^2 from this?

What is the most direct way to do this?

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# How does one get time dilation, length contraction, and E=mc^2 from spacetime metric?

**Physics Forums | Science Articles, Homework Help, Discussion**