单词：air-arc cutting and gouging electrode
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ESL Podcast 1180 Price Gouging Pedro: Why are you changing the prices on all of those items in the store? Elisa: Havent you heard? Theres a hurricane coming. People will be stocking up on basic necessities. Pedro: I know that, but that still doesnt e
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Bacteria Discovered To Recharge Cell Phone A microbe called Rhodoferax Ferrireducens，found in the mud at Oyster Bay，Virginia，has been discovered to transfer electrons directly onto an electrode
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Time for M.I.T.s Clean Energy Prize. The annual competition gives teams of university students a chance to compete for $200,000 to kick-start their new clean energy business. One finalist designed a compression technology for natural gas wells that w
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This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan
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New York Officials Work to Curtail Price Gouging This is a different day, my friend. Thats what a cab driver recently said when this reporter protested his attempt to charge $30 for what would usually be a $10 ride. A spike in demand for taxis, gener
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