Re: [Phys-l] models of radioactivity

[Brian Whatcott <betwys1@sbcglobal.net>]

John Denker wrote:
> On 04/17/2009 10:25 PM, Hugh Haskell wrote:
>
>   
> > we know that half-life (T) can be 
> > expressed as
> >
> > 	T = (ln 2)/p		(1)
> >     
>
> What do you mean by "we", Kemosabe?
>   
We?
The folks at MIT giving an introduction to modeling radio-active 
half-life, for example.
See this version
<http://www-math.mit.edu/~djk/calculus_beginners/chapter12/section02.html>

Hugh is in fact illustrating a comparable example to the difference 
between compounding capital at time intervals, say weekly, monthly, 
quarterly etc., and
compounding capital continuously. This is a standard introductory 
element of
teaching exponential versus discrete time models, I thought?

Brian W