Pennsylvania State University Archives – The Green Optimistic green tech news, since 2008 Tue, 01 May 2012 11:50:40 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Reinventing The Transistor: TFET Technology Reaches New Efficiency Heights https://www.greenoptimistic.com/tfet-transistor-efficiency-20120327/ https://www.greenoptimistic.com/tfet-transistor-efficiency-20120327/#respond Tue, 27 Mar 2012 13:35:58 +0000 https://www.greenoptimistic.com/?p=23664 Tunneling Field Effect transistors (TFETs) have been worked on for many years as an alternative to today’s FETs, which are the transistors used in power electronics including electric cars. The main advantage of TFETs over simple FETs is efficiency by the fact that it produces less heat. Now, researchers from University of Notre Dame, ID […]

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]]> https://www.greenoptimistic.com/tfet-transistor-efficiency-20120327/feed/ 0 23664 NASA to Make Its Future Rocket Fuel From Water and Aluminum https://www.greenoptimistic.com/nasa-hydrogen-water-aluminum-rocket-fuel-20091009/ https://www.greenoptimistic.com/nasa-hydrogen-water-aluminum-rocket-fuel-20091009/#comments Fri, 09 Oct 2009 14:46:47 +0000 https://www.greenoptimistic.com/?p=4709 At first, I found it surprising, but when I did some research and had a second though about it, I learned that when NASA or any other space agency launches a space ship, it consumes about 773 tons of ammonium perchlorate, and releases some 230 tons of hydrochloric acid immediately after launch.

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