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Our gut instinct about whether a stranger poses a threat is as good when we're 80 as when we're 18, according to new research. Older people are as good as young adults at knowing when someone is potentially aggressive, and being streetwise appears to be a skill honed in childhood but not fully reliable until adulthood.
Thin fibers made of carbon nanotubes can be formed into antennas that are just as capable as copper antennas, according to researchers.
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October 23, 2017, 11:09
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