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Re: [Phys-L] LC circuit simulation

Good night, John.

Bob Sciamanda
Physics, Edinboro Univ of PA (Em)
-----Original Message----- From: John Denker Sent: Wednesday, August 06, 2014 1:02 PM To: Subject: Re: [Phys-L] LC circuit simulation
On 08/06/2014 09:20 AM, Bob Sciamanda wrote:

Dissipation is mandated, and nature will find a way

You say that like it's a law of nature. However, it
isn't, not in any way that is relevant to the original
topic of this thread.

- she has invented RADIATION!

EG., ==>

AJP, 70, pg 415, 2002
AJP, 72, pg 662, 2004.

Both of those papers start from the assumption that a
certain amount of energy must be "missing" or "lost",
and then proceed to describe places where the energy
could go. Alas, the initial assumption is wrong.
Proof by construction, as given in my previous message.

The title of the 2004 paper says "Capacitors can radiate".
Well, yes they can, and /sometimes/ they do. If you make a pile of assumptions, you can estimate how much.

HOWEVER, each of those assumptions is an assumption,
not a law of nature. There is a very long leap from
"can" radiate to "must" radiate.

The goalposts have already been moved from dissipating
half the energy to dissipating "some" energy. Would
you care to put a number on that? What is the minimum
energy that a capacitor is "mandated" to radiate? Or
to put it the other way, what is the maximum Q imposed
by the laws of nature, the maximum Q an oscillator can
possibly have?

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