## Einsteinean Relativity

## and SpaceTime Coordinates

Einstein's postulate of Special Relativity:

Allthe laws of Physics are the same for all observers moving with consant relative velocity.An important corollary:

All observersin inertial frames measure thesame valuefor the speed of light (in vacuum),c = 3.00 x 10

^{8}m/sWhat is a reference frame?

Synchrosize all the clocks.

Return to Ch 27, Special Relativity(c) Doug Davis, 2002; all rights reserved