Nanotech will let us wear batteries and get 150 mpg - USATODAY.com

Nanotech will let us wear batteries and get 150 mpg - USATODAY.com: "Nanotech will let us wear batteries and get 150 mpg
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Yet-Ming Chiang, founder of A123 Systems, demonstrates the 36-volt Dewalt hammerdrill powered by a four horse power battery designed by his company.
Enlarge By Tom Peter, courtesy Christian Science Monitor
Yet-Ming Chiang, founder of A123 Systems, demonstrates the 36-volt Dewalt hammerdrill powered by a four horse power battery designed by his company.
By Tom A. Peter, The Christian Science Monitor
WATERTOWN, Mass. — Standing at the base of a gym's climbing rope, Nathan Ball checks his harness and prepares to live every gym student's dream. He flicks a switch on his 'rope ascender' and zips up to the 45-foot ceiling in less than five seconds. The 15-pound battery-powered device, designed by Mr. Ball and three fellow Massachusetts Institute of Technology students, can hoist 250 pounds at 10 feet per second (about 7 miles per hour)."