Five Best Ideas of the Day
Published each weekday, at noon.
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Is YouTube bad for us?
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By reverse-engineering energy-burning brown fat, researchers might be on the trail of drugs to treat obesity.
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Smart swarming robots could be our best defense against new weapons from Russia and China.
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To fight declining bee (and butterfly) populations, get lazy with your lawn mowing.
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How fighting corruption can help end conflict across Africa.