This simple chemistry demo shows how a colorless liquid can change colors multiple times using only a few ingredients. The ...

The sensors can prioritize cyclists or pedestrians so they don't need to wait—and help cities more quickly identify dangerous intersections.

Researchers from North Carolina State University proposed adding a new color, white, to stoplights for autonomous vehicles ...

This story is part of the KXAN Data Hub, where numbers help tell the whole story. We’ve created several data-driven stories and databases on topics including weather and climate, politics, education, ...