There's a lot of exciting stuff going down at open wikiblogplanet (an aggregator for blogs about wikipedia).
Saturday, March 29, 2008
Friday, March 28, 2008
A solar furnace is a structure used to harness the rays of the sun in order to produce high temperatures. This is achieved by using a curved mirror (or an array of mirrors) acting as a parabolic reflector to concentrate light (Insolation) on to a focal point. The temperature at the focal point may reach up to 3,000 degrees Celsius, and this heat can be used to generate electricity, melt steel or make hydrogen fuel.