Re: [Phys-l] EM, is it energy

["LaMontagne, Bob" <RLAMONT@providence.edu>]

?? If the wave is traveling through empty space, what are these "forces"
acting upon? Do you mean fields? 

Wave is energy? Guess it depends on what the definition of "is" is! Oops
- I guess this is more appropriate for the PHYSOC list

Bob at PC

> -----Original Message-----
> From: phys-l-bounces@carnot.physics.buffalo.edu [mailto:phys-l-
> bounces@carnot.physics.buffalo.edu] On Behalf Of
carmelo@pacific.net.sg
> Sent: Sunday, November 25, 2007 8:14 PM
> To: phys-l@carnot.physics.buffalo.edu
> Subject: Re: [Phys-l] EM, is it energy
>
> Perhaps this could also be attributed to BBC News?
> http://news.bbc.co.uk/1/hi/sci/tech/1702259.stm
>
> What are electromagnetic waves?
>
> An electromagnetic wave is energy that consists of related magnetism
> and electricity.
>
> An electromagnetic wave can be thought of as an oscillating electric
> force travelling through space accompanied by an oscillating magnetic
> force in a plane at right angles to it.
>
>
> Alphonsus
>
> Quoting Craig & Margaret Lucanus <lucanus@iinet.net.au>:
>
> > Hi List,
> > In discussion with my students about different forms of energy , a
> student
> > asked whether light (EM) is a form of energy at all, or whether it
is
> really
> > just a mode of transmission of potential energy.  This was a good
> question,
> > with the ensuing debate entertaining the class. Heck, what is light?
>
>
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