A tractor pulls a planter while distributing corn seed on a field in Malden, Ill. Two scientists agree that pesticide-laden dust from planting equipment kills bees. But they're proposing different solutions, because they disagree about whether the pesticides are useful to farmers.
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John Goodenough's work led to the lithium-ion battery, now found in everything from phones to electric cars. He and fellow researchers at the University of Texas, Austin say they've come up with a faster-charging alternative.
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For children over 1 year old, pediatricians strongly recommend whole fruit instead of juice, because it contains fiber, which slows the absorption of sugar and fills you up the way juice doesn't.