battery power

Nokia Working On Infinite Cellphone Battery

Nokia looks to device that harvests energy from ambient radiation

Who hasn't missed an important call or woke up at the wrong time because you forgot to charge your cellphone over night? Well, Nokia hopes to make that a thing of the past by developing a technology that would use ambient radio radiation to perpetually charge a phone's battery.

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The Grouse

The Grouse: Assault on Batteries

Should non-rechargeables be illegal?

Perusing the deluge of overheated press releases from the CES conference a few weeks ago, one in particular, for Panasonics new line of EVOLTA batteries, got me thinking. And when I say thinking, I mean muttering curse words and shaking my fist. The release made a big deal about the fact that these new batteries last from 1.3 to 2 times as long as other alkaline batteries—which is to say, slightly less poisonous and wasteful, but not much. Whoopdee-flipping-doo.

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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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