Think you can draw dotted lines? See if you can do it the way Professor Walter Lewins of Massachusetts Institute of Technology does it!
Check out more amazing talents over at our Mad Skills blog
Tokyoflash Treasure Hunt - Win a Tokyoflash Watch of Your Choice!
Going on right now: Tokyoflash Treasure Hunt #26. Win a Tokyoflash watch and neat stuff from the NeatoShop. It's fun and easy to play: Link
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