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Re: [Phys-l] models of radioactivity



I did not penetrate the argument against this T=ln(2)/lambda. Was it nothing more than a clarification, made by Brian today (that the number of radioactive atoms must be very large)?

Ludwik

On Apr 20, 2009, at 3:57 PM, Edmiston, Mike wrote:

Perhaps a minor point, but it initially threw me off, and perhaps
others, was Hugh's use of the letter p for the radioactive decay
constant. There is a standard symbol for the decay constant, and it is
lower-case lambda. Thus, the half life is ln(2)/lambda.

I guess there is no law saying you have to use lambda, but when there is
a standard symbol, it is helpful to use it. If someone decides to write
an equation using b as the Boltzmann's constant rather than k, it's
going to throw people off for a while. Likewise, the use of p instead
of lambda threw me off.


Michael D. Edmiston, Ph.D.
Professor of Chemistry and Physics
Bluffton University
Bluffton, OH 45817
(419)-358-3270
edmiston@bluffton.edu
_______________________________________________
Forum for Physics Educators
Phys-l@carnot.physics.buffalo.edu
https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l

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Ludwik Kowalski, a retired physics teacher and an amateur journalist. Updated links to publications and reviews are at:

http://csam.montclair.edu/~kowalski/cf/ http://csam.montclair.edu/~kowalski/my_opeds.html http://csam.montclair.edu/~kowalski/revcom.html

Also an ESSAY ON ECONOMICS at: http://csam.montclair.edu/~kowalski/economy/essay9.html