New theory could help clear fusion power hurdle: "While solar power harnesses energy produced by the Sun, fusion power seeks to harness the very process used by the Sun to generate a practically limitless supply of clean electricity."
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Wednesday, April 25, 2012
Counterintuitive “LED-type” solar cell breaks efficiency record
Counterintuitive “LED-type” solar cell breaks efficiency record: "When you think of a solar cell, you probably think of something designed to absorb as much sunlight as possible. What you probably don't think of is something that is also capable of emitting light. Nonetheless, that’s exactly what a new prototype device designed more like an LED does, and it recently set an efficiency record for flat-plate single junction solar cells."
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Next-gen cargo ships could use 164-foot sails to lower fuel use by 30%
Next-gen cargo ships could use 164-foot sails to lower fuel use by 30%: "Of the world's nearly 45,000 cargo ships, many burn a low-grade bunker fuel in their engines and produce pollution equivalent to millions of automobiles. To help reduce that toxic load and keep the price of shipping freight reasonable, engineers at the University of Tokyo (UT) and a group of collaborators have designed a system of large, retractable sails measuring 64 feet (20 m) wide by 164 feet (50 m) high, which studies indicate can reduce annual fuel use on ships equipped with them by up to 30%."
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