The work at Berkeley opens the door to a much more direct experience of colour than we’ve ever had before. Scientists in the ...

Red, amber, green – traffic lights are pretty much the same the world over, and have been for more than a century. However, they could one day have a fourth colour added to help traffic flow ...

app on their smartphones get a voice-activated message when they approach a traffic light equipped with the system via Bluetooth telling them what color a light is. The device, which has a ...

As many people sit at the wheel of their car, they are certain they know what color is. It's the red traffic light in front ...