Florida bans 'critical race theory' from its classrooms

Florida's state Board of Education banned "critical race theory" from public school classrooms Thursday, adopting new rules it said would shield schoolchildren from curricula that could "distort historical events."

A flexible color-changing film inspired by chameleon skin

Chameleons can famously change their colors to camouflage themselves, communicate and regulate their temperature. Scientists have tried to replicate these color-changing properties for stealth technologies, anti-counterfeiting ...

Why San Francisco felt like the set of a sci-fi flick

On Sept. 9, many West Coast residents looked out their windows and witnessed a post-apocalyptic landscape: silhouetted cars, buildings and people bathed in an overpowering orange light that looked like a jacked-up sunset.

Chameleon inspires 'smart skin' that changes color in the sun

A chameleon can alter the color of its skin so it either blends into the background to hide or stands out to defend its territory and attract a mate. The chameleon makes this trick look easy, using photonic crystals in its ...

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