Re: The Cost of Relativity

From: Tom Potter (tdp_at_earthlink.net)
Date: 07/26/04 

Date: Mon, 26 Jul 2004 17:20:01 +0800

"Marv Raybin" <raymarv@sbcglobal.net> wrote in message
news:BpXMc.97128$aN6.44901@newssvr29.news.prodigy.com...
> Tom Potter wrote:
> > > Also, could you list some specific areas where General
> > > Relativity is profitably used as an engineering tool?
> > >
> http://www.physlink.com/Education/AskExperts/ae161.cfm
>
> "Experiments with subatomic particles, however, confirm Relativity's
> prediction of increasing mass at speeds near c. Devices from particle
> accelerators to TV PICTURE TUBES MUST ACCOUNT FOR MASS INCREASE IN ORDER
TO WORK PROPERLY."

I challenge the poster to provide
ANY reference to where a CRT designer
used Relativity to design a CRT or picture tube.

As an old oscilloscope salesman,
who knew engineers at Hewlett Packard, and Tektronix,
and who set in on seminars about designing CRT's
to improve spot size, focus, writing rate, astigmatism,
color, brightness, phosphors, X-rays, etc., but
I never heard ONE engineer or research mention Relativity.

Hopefully "Marv Raybin" will be able to provide
some valid, real world information about who used
relativity to design a CRT or picture tube.

I might also mention that I have attended seminars
on the design of traveling wave tubes, backward wave oscillators,
magnetrons, etc.
and I never heard any of the designers mention that they used Relativity
in the design of these devices.

I wonder of Farnsworth ever used Relativity
in his numerous tube designs? 

--
Tom Potter     http://home.earthlink.net/~tdp

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