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This material keeps you cool and warm.
Pee powers this battery.
Nanotransistors.
Stungun bullets.
This material keeps you cool and warm.
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On a lighter note, outdoor clothing manufacturer Burton and the Canadian Ski Team also use the stuff. As time goes on, consumers will find a variety of Aspen-equipped jackets, gloves boots and bibs designed to protect them from the cold as well as a flamethrower.
Pee powers this battery.
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The urine-powered battery was able to generate a voltage of about 1.5 volts – with a corresponding power of 1.5 micro-watts – using just 0.2 millilitres of urine, says Lee. And if a second droplet of urine was added 15 hours after the battery was first activated, the replenished urine could generate still more electricity.
Nanotransistors.
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And, whereas current silicon transistors have been shrunk to around 100 nanometres, the Y-shaped nanotubes measure just tens of nanometres in size. Eventually, they could even be shrunk to just a few nanometres, the researchers suggest.
Stungun bullets.
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Meanwhile, Midé Technology Corporation of Medford, Massachusetts, is proposing the Piezer. Rather than conventional stun-gun circuitry, with batteries linked to transformers and a capacitor, the Piezer contains piezoelectric crystals, which produce a voltage when they are compressed. The Piezer would be fired from a 12-gauge shotgun, stunning the target with an electric shock on impact. Shotguns are already used to fire less-lethal "beanbag" rounds to subdue suspects, but these have short range. Midé claims the Piezer could be effective at 40 to 50 metres.