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Climate Change

Photo of a person’s palm holding a chunk of silver metal that pools as it melts.
Technology

Gallium: The liquid metal that could transform soft electronics

Bend it. Stretch it. Use it to conduct electricity. Researchers are exploring a range of applications that harness the element’s unusual properties.

A short repeating movie clip shows a cyclist riding down a bike path in the dark; the path glows green.
Technology

Will glow-in-the-dark materials someday light our cities?

Substances that persistently luminesce are already used in some bike lanes, and in the future could be applied to sidewalks, streets and buildings — saving energy and reducing urban heat

Stylized drawings of a real nerve cell and an electronic version that can also process and store information.
Technology

Making computer chips act more like brain cells

Flexible organic circuits that mimic biological neurons could increase processing speed and might someday hook right into your head

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