Einstein's
theory of special relativity includes electricity and magnetism in a simple, logical
extension of the relativity of Galileo and Newton. Its conclusions, including
time dilation, length contraction, and E=mc2 have changed profoundly
our ideas of time and space, matter and energy.
These
multimedia modules (click on menu above right) give a brief
overview of relativity - they present the main ideas. Inevitably,
you will have questions. So the related links (below) give more complete
explanations, at levels with ()
or without mathematics ().