RE: Alpha Radiation [was Re: The Extinction Challenge (fwd)] (fwd)

From: hal@finney.org
Date: Wed Aug 04 1999 - 15:20:57 MDT


Yes, you're right, I wasn't thinking. The online source I used
(http://wqa.org/Glossary/joule.html) said that a Joule was "107" ergs,
when it meant "10^7". In the back of my mind I was puzzled over the fact
that this wasn't a round number, but I thought I must have misremembered
what an erg was.

Can't trust everything you find online, I guess.

Hal

> According to my usual on-line reference
> (http://calc.entisoft.com/scripts/UnitsCGI.Exe), the correct conversion
> here is 1 erg = 2.39 x 10^-8 calorie, not 10^-2. That gives you a
> temperature change of only 0.0001 degrees C.
>
> Billy Brown, MCSE+I



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