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The two-stroke rickshaw, although convenient in traffic-snarled cities, is a toxic nuisance--but new engines could clean up their act
Researchers coat electroactive polymers with carbon for fewer moving parts in consumer electronics
New technology like smart pills, a wireless heart monitor and a robotic surgical assistant could radically reshape patient care
It won't be hydrogen fuel cells or plug-in hybrids, but rather refinements to the internal combustion engine, aerodynamics, drivetrains and tires that reduce emissions and kick up mileage
What is the environmental impact of all those flowers given on Valentine's Day?
With waning subsidies and other attractive markets, can Spain maintain its lead in solar tech?
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