How parents' smartphone use affects their kids

When it comes to raising children in the digital age, one of the worst things a parent can do is give their kid a smartphone and hope for the best. Turns out, same goes for the grownups.

Color-sorting metalenses boost imaging sensitivity

Researchers have shown that newly designed pixel-scale metasurface lenses—flat surfaces that use nanostructures to manipulate light—can be used to make imaging sensors that are roughly three times more sensitive than ...

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