點解E=MC^2 ????

Einstein published his Theory of Special Relativity(特殊相對論，或名狹義相對論) in 1905. The equation E=mc2 was published in a short paper later in the year as a supplement to the Special Relativity Theory. This short paper (original version is in German, but English translation is available) titled "Does the inertia of a Body Depends on its Energy Content" can be read on the following link:

http://www.fourmilab.ch/etexts/einstein/E_mc2/www/

In that paper, Einstien derived this famous equation.

There is a simple derviation of the equation E=mc^2, written by some other authors, to be understandable by high school physics students. You may refer to the following web-page:

http://www.adamauton.com/warp/emc2.html