"Jacques" wrote in message
...
| Hi everybody,
|
| I have a question which bothers me since long time and maybe with your
help
| I can find the answer at last. Since I heard the formule E=mc^2 for the
| first time it struck me that there seems to be no logical relation between
| the energy contained in a mass and the speed of light. I have no
| difficulties to understand that the energy contained in a mass is
equivalent
| to that mass.
|
| My problem is: what the hell has this to do with the speed of something
else
| (an electromagnetic wave). I cannot see the connection between them. These
| two things: mass and energy on one side and the speed of light on the
other
| side seem too disparate to me to allow a logical link between them.
|
| I wonder, if someone can explain this connection. I wouldn't have been
| surprised if the Joule (the unit for energy) had been established in
| consequence of this formula, but I think both Joule, kg, m/s were already
| existent before E=mc^2.
|
| I learned from Wikipedia that James Joule died in 1889, thus before
Einstein
| discovered his famous formula, which I think happened in 1905.
|
Nothing remarkable about it all.
http://www.androcles01.pwp.blueyonde.../DeriveMC2.htm
http://www.androcles01.pwp.blueyonder.co.uk/MC2.htm


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