🚀 go-pugleaf

In article <4951@tuegate.tue.nl> johan@blade.stack.urc.tue.nl (Johan Wevers) writes:
>In article <1992Aug3.032445.22653@ucsu.Colorado.EDU> knapp@spot.Colorado.EDU (David Knapp) writes:
>>In article <1992Aug3.015927.26752@ccu.umanitoba.ca> ummackse@ccu.umanitoba.ca (Chris Macksey) writes:
>>
>>>Is there a formula for the energy of the produced e-m wave, given the
>>>acceleration of the electron?  If so, what is it? (I almost saw a dozen
>>>or so replies saying simply "Yes, there is.". ;) )
>>>Also, while I'm at it... If an electron is _continuously_ accelerated,
>>>how often is an e-m wave produced? Constantly?
>>
>>There *is* a forumula, and it would be one hell of a pain in the ass to try
>>to type it in. Even the non-relativistic forumula took a week for us to derive
>>in class.  If you really need it, write me and I'll send you reference.
>
>The formule for the emitted energy is not that difficult (when we
>neglect retardation); in SI-units it is:
>
>dW        Q^2 a^2
>-- = ------------------
>dt   6 pi c^3 epsilon_0
>
>(source: Alonso-Finn - Fundamental physics, part 3, Dutch translation).


But the retarded potential is reality.  




-- 
David Knapp                                      University of Colorado, Boulder
Highly Opinionated, Aging  and                      knapp@spot.colorado.edu
Perpetual Student of Chemistry and Physics.
            Write me for an argument on your favorite subject.