How authentic is your pomegranate juice?

RIVERSIDE, Calif. — You pick up a bottle of pomegranate juice at the store because you’ve learned that, although it costs more than most juices, it is replete with antioxidants that bring health benefits. But wait: Is the juice you’ve purchased…

Nanodevice breaks 1-GHz barrier

Nanoscientists have achieved a milestone in their burgeoning field by creating a device that vibrates a billion times per second, or at one gigahertz (1 GHz). The accomplishment further increases the likelihood that tiny mechanical devices working at the quantum level can someday supplement electronic devices for new products.

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