Technology
Superhuman sight may be possible with lens that makes UV light visible
A nanocrystal-coated lens can convert ultraviolet light into bright green, extending the range of people's vision
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A nanocrystal-coated lens can convert ultraviolet light into bright green, extending the range of people's vision
Yellow spectacles are supposed to improve a driver's vision at night but in tests people wearing them couldn't actually spot pedestrians any faster