water is pretty good, too and cheap. Coupling to it is easy as well.
Don
----- Original Message -----
From: "jimlux" <[email protected]>
To: "Discussion of precise time and frequency measurement"
<[email protected]>
Sent: Wednesday, March 10, 2010 9:35 PM
Subject: Re: [time-nuts] Thermal time constant
Bob Camp wrote:
Hi
The gotcha is that you are interested in the amount of heat per cubic
foot rather than the amount of heat per pound. You need to take the
standard heat per weight numbers and convert them to heat per volume
numbers. Of the things you can easily get, copper is good. Steel is not
as good as copper, but better than aluminum. Bob
Gold is your friend. Mercury has convective losses because it's a liquid.
Platinum or Osmium would also be ok.
You might want something that is dense but lower conductivity.. lead?
Depleted Uranium? (DU is available very cheaply if you can take 80,000
pound lots)
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