Last Friday I had an opportunity to be on Ira Flatow's Science Friday broadcast on National Public Radio. Here is the link to the broadcast. This essay is composed in HTML and can be read in your browser. This is not always a simple process, and I'll be happy to provide help if I can. If you are getting this directly from me, or if someone is forwarding it to you, and you want to change that situation, let me know.
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