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Re: [Amps] Black Heat Shields

To: amps@contesting.com
Subject: Re: [Amps] Black Heat Shields
From: "Roger (K8RI)" <sub1@rogerhalstead.com>
Date: Sun, 19 Dec 2010 22:46:02 -0500
List-post: <amps@contesting.com">mailto:amps@contesting.com>

On 12/19/2010 10:09 PM, Ken Brown wrote:
>>   So the
>> bottom line is that all things absorb radiation to some degree, thermalize
>> it, and reradiate it back out.  A theoretical blackbody does this perfectly,
>> everything else less so, to varying degrees, but the basic concept is the
>> same.
> And the reason that they call it a blackbody is that black bodies do it
> ( absorb radiation AND reradiate) better than any other color.
Think of a blackbody in thermodynamics as the analogy to the isotropic 
source in antennas.
it doesn't exist but makes an excellent reference point.

73

Roger (K8RI)
> DE N6KB
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