volt batteries

11.09.09

Titanium in Technicolor

With a battery and a can of soda, you can anodize the surface of titanium to create colors that will last forever
Posted 06.23.2005 at 3:00 pm 0 Comments

Dept.: Gray Matter
Element: Titanium
Project: Anodizing a titanium birdhouse
Cost: $75
Time: 2 hours
Dabbler | | | | | Master




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A Car Stereo That Can Kill You? Cool.

There may be no weirder tech-to-tech combat than the fight to build the world's most powerful sound system.
By Stephan Wilkinson Posted 06.24.2003 at 2:21 pm 0 Comments

Troy Irving's 18-year-old Dodge Caravan has a hell of a sound system: 72 amplifiers-you got it, 72-and 36 big 16-volt batteries to put out the 130,000 watts of power needed to rumble his nine 15-inch subwoofers. To put that into perspective, the most powerful production-car audio I know of is the $230,000+ 2003 Aston Martin Vanquish's 1,200-watt system. Irving carries $80,000 worth of audio alone, in a vehicle that is worth, admittedly, slightly less than the Maybach. Must be fun to ride down Main Street with the windows rolled down, right?

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November 2009: Astronaut 3.0

Inside NASA's astronaut bootcamp and the grueling new training regimen for deep space. Plus, ten young geniuses shaking up science today, one writer's quest to analyze every man-made chemical in her body and more.

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