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Green energy from a stick
16 hours ago ago from Learning Technology @ Notre Dame
nPower's Personal Electronic Generator, is a nine-inch tube that generates up to 4 Watts of power. When you go up a set of stairs you expend 200 Watts of power. A cell phone charger can only accept 2.5 Watts, so the PEG needs to harvest less than 2% of your kinetic energy. Besides charging [...]
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