Hey. Believe me I would love more than anything to disable the HTML-ification of my email, but as I am using hotmail I am unsure as to the feasability of this. I have yet to find a way to disable it.
>Except that the signal hasn't been converted to a soundwave when the >signals are superposed, it's still an electrical signal in the wire, >so what's being cancelled isn't a compression or rarefaction in air, >but a current in the speaker cable. Or have I totally misunderstood >the mechanics of alan's budget phasing trick?
Perhaps I misunderstood the question. I explained the actions of wave mechanics correctly, but you're right if we're talking about electrical signals I think it works differently. Electrons which are being propagated through a copper wire tend to behave like fluids not waves. Hrm, I was under the impression that the experiment being described before was essentially just sending one channel to both speakers.
>Also, compression waves (such as sound in air) still carry energy, even >if there is no net movement of mass. A sound wave that dissipates must >still transfer its energy elsewhere (either as heat to the surrounding >air or motion on your eardrum or another membrane)
Right, of course, otherwise you wouldn't hear anything. But I tend to find that people are able to understand waves as massless beings. If they were TOTALLY massless they would travel forever (as they do in space where there is almost no mass to oppose them), instead of degrading over distances as they do in air or water. It also allows me to not have to get into the interchangeability of energy and mass when you get down to the level of particles. :-D
>My brain is in no mood to think about physics. I'm going for coffee
Hahaha! I prefer green tea myself ;)
>
>jon > > >-- >"Reality is that which, when you stop believing in it, doesn't go away." > - Phillip K. Dick > > > > > > >_______________________________________________ >Orb mailing list >Orb@mailman.xmission.com >http://mailman.xmission.com/cgi-bin/mailman/listinfo/orb