Date: Wed, 29 Feb 2012 20:33:55
Author: chuck britton
Subject: Re: Hair diffraction lab
And it turns out that the size of your red corpuscles is a measure of
some medical interest.
At 6:54 PM -0500 2/29/12, Anthony Lapinski wrote:
>If you're up for it, you can prick your finger* and put a blood sample on
>a slide. Add a cover slide and use a laser to get a circular diffraction
>pattern. This is a nice biophysics application. I did this as a demo years
>ago and it worked well. You just have to move the laser around very slowly
>to hit a blood cell. I have diabetes and check my blood several times each
>*You can get lancets and lansing devices cheaply at Wal-Mart, Target, etc.
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