Esor
- Science
Everyday Electromagnetism
7.29.2008 at 03:42pm - Comment by EsorHe places the seperated top of a CD case over the pennies, not glass. The edges of the case prevent the pennies from contacting the material placed over it. Still a interesting trick.
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December 2009: Best of What's New
In our December issue, Popular Science names the 100 best innovations of the year: bombproof wallpaper, self-parking cars, the fastest helicopter, and 97 more. Plus inventor profiles and videos.
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