Earth Powered

Japan to slash use of a heavy rare earth as China tightens gripTOKYO (Reuters) - Japan aims to cut domestic consumption of a heavy rare earth used widely in hybrid cars and electronics by 30 percent over the next two years as China keeps a tight grip on exports of the material, known as dysprosium. China ratcheted up export controls on the rare earth, mainly used in high-powered magnets, early last year, sending prices 10 times higher to around 3,000 yen ...Reuters via Yahoo! News - Feb 08 01:35am
Magma Phase Changes within PlanetsThere is a weirdness deep inside planets. There are intense pressures and temperatures during their formation. Just as graphite can transform into Just as graphite can transform into diamond under high pressure, liquid magmas may similarly undergo major transformations at the pressures and temperatures that exist deep inside Earth-like planets. Using high-powered lasers, scientists at Lawrence ...Environmental News Network - Feb 13 04:46am
NASA Studying Solar Powered "Space Tugboat"Zothecula writes "Last year, NASA announced it was seeking proposals for mission concept studies of a high-power solar electric propulsion (SEP) system that could be used in a 'space tugboat.' Such a ship would be used to ferry payloads in low Earth orbit (LEO) into higher energy orbits, including geosynchronous Earth orbit (GEO) and Lagrange point one (L1) — saving on fuel and the use of ...Slashdot - Feb 01 01:01pm
Human Waste-Powered Robots May Be Future of MachinesToday's robots that fly, jump or roll around must refuel or recharge as does any gadget that runs out of energy. Tomorrow's new generation of self-sustaining robots might keep going nearly forever by grazing on dead insects, rotting plant matter or even human waste. [More]Scientific American - Feb 05 06:04am

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