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High-Speed Video Reveals The Source Of That Incredible After-Rain Smell

That smell has a name. It's called petrichor. For decades, scientists have speculated on where this smell comes from, but the mechanism behind the phenomenon has remained elusive. Now, researchers at MIT studying high-speed video of raindrops think they've found the answer: The smell is released in tiny aerosol clouds… »1/15/15 5:30pm1/15/15 5:30pm

Tomorrow's wind turbines could look like enormous owl wings

Engineers often take inspiration from animal designs because they're more efficient than machines are. In the case of owl wings, nature has a major advantage over human engineering: owl wings are uncannily quiet. Now, researchers are considering outfitting wind turbines with an upscaled equivalent – if they can figure… »11/25/13 12:05pm11/25/13 12:05pm