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Technological innovations | Heat-Harvesting NanomaterialsA new design could help thermoelectric materials find broader use.
Engineers have long dreamed of harvesting waste heat from a microchip or car engine and turning it into usable electricity. But thermoelectric materials, which convert heat into electricity, have never been efficient enough to move beyond a few niche applications.
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 | Yahoo Predicts America's Political WinnersData scientists at Yahoo are using prediction marketsalong with polls, sentiment analysis on Twitter, and trends in search queriesto create the mother of all political prediction engines. The project involves Web-based prediction markets like Intrade, in which large numbers of people bet on the outcomes of elections.
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 | Science as ArtCongratulations to EMSL's Bruce Arey who captured an award-winning image that has been chosen by readers of Chemical & Engineering News as its top science art pick.
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 | Spun from the 'Web'Peptide hydrogels have great potential as material for protein storage and transfer. Scientists used spider flagelliform silk protein to design the peptide, h9e. In Ca2+ solution, h9e Ca2+ hydrogel showed promise for medical use.
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