Why do plants wiggle? New study provides answers

In a new study, physicists from the United States and Israel may have gotten to the bottom of a quirky behavior of growing plants—and a mystery that intrigued Charles Darwin himself during the later decades of his life.

New reactor system yields green ammonia and purified water

Ammonia plays a critical role in sustaining food production for the world's growing population, but making it accounts for about 2% of global energy consumption and 1.4% of carbon dioxide emissions. Rice University engineers ...

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