mechanical energy electricity Archives – The Green Optimistic green tech news, since 2008 Tue, 24 Nov 2015 08:49:00 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Nanogenerator Powers an E-watch with Energy from Wrist Movement https://www.greenoptimistic.com/nanogenerator-e-watch-energy/ https://www.greenoptimistic.com/nanogenerator-e-watch-energy/#respond Tue, 24 Nov 2015 08:49:00 +0000 https://www.greenoptimistic.com/?p=57810 Self-powered electronic watch uses high-tech mechanism to harvest the energy of the wrist movement, paving the way to battery-free devices. A team of scientists, led by Ya Yang at the Beijing Institute of Nanoenergy and Nanosystems in China, developed a hybrid nanogenerator technology, which can harvest the energy of wrist movement to power electronic devices. […]

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]]> https://www.greenoptimistic.com/nanogenerator-e-watch-energy/feed/ 0 57810 New Piezoelectric Flexible Nanoribbons Prove 80% Efficient Conversion https://www.greenoptimistic.com/new-piezoelectric-flexible-nanoribbons-prove-80-efficient-conversion-20100129/ https://www.greenoptimistic.com/new-piezoelectric-flexible-nanoribbons-prove-80-efficient-conversion-20100129/#respond Fri, 29 Jan 2010 14:32:00 +0000 https://www.greenoptimistic.com/?p=6411 Pacemaker owners all over the world and other people in need of a reliable, small current source will surely be glad when they'll hear that Princeton University scientists have developed an ultra-efficient (80%) piezoelectric system, able to transform mechanical work into electricity.

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