RDZombie
DIY
Handheld Sunbeam
By Abby Seiff Posted on 1.29.2008 15 CommentsRalf Ottow was standing in front of his bathroom mirror one morning when he noticed that his forehead was sunburned. He hadnt been out tanning—his homemade flashlight had fried his skin.
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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.
Check out the best of what's new here.
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