Ulefone's new tablets have powerful dual LED lights and dual warning lights too. You can see them in action in an official ...

Ponder the red-backed poison frog. In nature, red can issue a warning to predators — stay away, the aposematic message reads. On the road, red can be a warning of its own, often flashing on emergency ...

“I see more and more tow trucks with red and blue flashing lights. I thought only police can have red and blue flashing lights. Is this legal?” Under the direction of law enforcement, it is okay for ...

Carmakers say their increasingly sophisticated automated driving systems make driving safer and less stressful by leaving some of the hard work of knowing when a crash is about to happen—and avoiding ...