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Topic: Who discovered the equivalence of energy and mass?
Replies: 4   Last Post: Jun 11, 2013 1:34 PM

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Existential Angst

Posts: 28
Registered: 11/13/11
Re: Who discovered the equivalence of energy and mass?
Posted: Jun 10, 2013 12:48 AM
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"Tom Potter" <tdp1001@yahoo.com> wrote in message
news:xbctt.24$_E4.15@newsfe26.iad...
> In 1896 Wilhelm Wien determined a
> distribution law of blackbody radiation
> which Max Planck, a colleague of Wien's,
> forked into Planck's Constant and the quantum of action
> in 1900.
>
> This led to the development of quantum theory.
>
> In 1900 Wien proposed that
> m=(4/3)E/c^2 was the relationship between
> electromagnetic mass and electromagnetic energy,
> which Einstein forked into m=(1)E/c^2
> in 1905.
>
> This led to the development of Relativity.
>
> It is interesting to see that Wien
> was the fountainhead for both the
> continuous and the quantum
> approaches to physics.


There was another german -- fraunhoff or somesuch -- that also formulated E
= mc^2 from blackbody considerations. Don't know if he preceded Wien or not.
Buncha smart guys.
Now we have string theorists. <sigh>
--
EA



>
> --
> Tom Potter
>
> http://the-cloud-machine.tk
> http://tiny.im/390k
>
>
>






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