Criminals, including those convicted of minor offenses, were given green triangles. Jewish people were given yellow triangles arranged to form the Star of David.

Eventually, the upgrades could do away entirely with the red, yellow and green lights of today, ceding control to driverless cars. Henry Liu, ...

There are a few reasons why the colors red, yellow, and green were chosen for traffic lights. Red is an obvious choice. The color red means danger or to be alert for something occurring.

Meta has deemed the inverted red triangle (and its accompanying emoji) a proxy for pro-Hamas support, and is enforcing its removal on platforms like Facebook, Instagram, and WhatsApp.The new ...