(NaturalNews) Literal beacons of the "green" energy movement, giant wind turbines have been one of the renewable energy sources of choice for the US government, which has spent billions of taxpayer dollars subsidizing their construction and use across the country. But high maintenance costs, high rates of failure, and fluctuating weather conditions that affect energy production render wind turbines expensive and inefficient, which is why more than 14,000 of them have since been abandoned.
Thursday, November 24, 2011
Computing with Light is Now Closer to Reality
(David L. Chandler - MIT) There has been enormous progress in recent years toward the development of photonic chips — devices that use light beams instead of electrons to carry out their computational tasks. Now, researchers at MIT have filled in a crucial piece of the puzzle that could enable the creation of photonic chips on the standard silicon material that forms the basis for most of today’s electronics.
In many of today’s communication systems, data travels via light beams transmitted through optical fibers. Once the optical signal arrives at its destination, it is converted to electronic form, processed through electronic circuits and then converted back to light using a laser. The new device could eliminate those extra electronic-conversion steps, allowing the light signal to be processed directly.
Game Over for Planet Earth: The Month’s Biggest Story You Never Read
The story is that with all the carbon taxes introduced and so called greener products, according to the US Department of Energy, there was an increase of 6% in green house gases pumped into the atmosphere in 2010 compared to 2009.
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