A lucky and wealthy few drivers will soon be speeding around town in Tesla Roadsters, but fast electric vehicles are...
Lithium-ion batteries double the power in your hand
A backpack converts human motion into electricity
A nonvolatile fuel cell promises to soothe your battery woes
The showâ€™s sagging with the PC industry, but innovation lives. Here are our picks for best in show.
Convert Your AAs to Cs or Ds
A laptop tablet that swivels and folds to suit your needs.
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