Andreas Klöckner's web page
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Yuck!

1,662,780How Many Germs Live On Your Keyboard?

Alternate Method: Convince them it's an Etch-A-Sketch and have them try and erase it

(xkcd is great.)

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  • About

    I teach and do research on scientific computing at the University of Illinois at Urbana-Champaign.

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