bookworm6
- Science
Pole Power
It's rather hard to believe that the world record in the pole vault is over 20 feet. That's twice the height of the "high dive" at your local pool. Expertise in the pole vault requires speed, skill, strength, and kamikaze-style fearlessness. It also requires a method to convert the kinetic energy of the approach into the maximum possible gravitational potential energy. That's where the pole comes in.
1.5.2009 at 11:08am - Comment by bookworm6as a pole vaulter, i have found that as i am vaulting, i am always wondering what exatly is springing me up into the air. thank you very much for this article.
- Gadgets
Origami Optics
In 2003, a program funded by the Pentagon’s Defense Advanced Research Projects Agency (Darpa) known as MONTAGE asked universities to find ways to squeeze unprecedented levels of magnification and resolution from small, super-thin lenses—technology that could be used in future imaging devices for finding, tracking, and identifying military targets. With some advice from his adviser Joseph Ford, UCSD graduate student Eric Tremblay decided to use an old idea—“folding” light, or reflecting it over and over—to solve the problem.
9.17.2008 at 07:32pm - Comment by bookworm6that is awesome i would like to try it
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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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