static electricity Archives – The Green Optimistic green tech news, since 2008 Tue, 03 Mar 2015 15:47:18 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Make Free Electricity by Pouring Water from a Can https://www.greenoptimistic.com/free-electricity-water-can/ https://www.greenoptimistic.com/free-electricity-water-can/#comments Fri, 17 Jan 2014 11:42:33 +0000 https://www.greenoptimistic.com/?p=45249 Of all the science stuff I’ve ever seen, this free electricity experiment has caught my eyes and is by far the most simple and interesting. It uses a source of water, two cans and two recipients. Sounds simple enough? Professor Walter Lewin from MIT let us see how he does it: Presumably, this experiment involves the […]

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]]> https://www.greenoptimistic.com/free-electricity-water-can/feed/ 7 45249 Triboelectric Device Could Harvest Static Electricity From Waves https://www.greenoptimistic.com/triboelectric-device-wave-power-20131015/ https://www.greenoptimistic.com/triboelectric-device-wave-power-20131015/#respond Tue, 15 Oct 2013 14:12:01 +0000 https://www.greenoptimistic.com/?p=42534 Static electricity is all around us, from the tiny shocks you get from taking off your shirt on a dry day [about 20kV] to electrical storms that generate lightning bolts [around 1GV]. Triboelectric devices can harness that energy, even from wave power. The phenomenon has been studied since about 600BC, when it was discovered that […]

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]]> https://www.greenoptimistic.com/triboelectric-device-wave-power-20131015/feed/ 0 42534 Static Electricity Could Power Mobile Phones https://www.greenoptimistic.com/static-electricity-could-power-mobile-phones-20121120/ https://www.greenoptimistic.com/static-electricity-could-power-mobile-phones-20121120/#comments Tue, 20 Nov 2012 17:17:42 +0000 https://www.greenoptimistic.com/?p=28530 One of the first ways we harnessed static electricity was to drag our shoes on the carpeted floor in the dry air of winter, then touch our brother’s ear. In this little experiment, thousands of volts discharged from the positively charged finger to the negatively charged ear, micro-amps [µA] of electricity. Researchers at Georgia Tech […]

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