Usually seen blinking away during a wet race or when a Formula 1 car is crawling through the pit lane is a tiny, pulsing red LED seems like it's got something urgent to say. It's easy to overlook if ...

Formula One safety devices have come a long way since the sport's inaugural season in 1950. But as cars get faster and more demanding, this equipment likewise must be bleeding-edge to match. Drivers ...

Red and green traffic lights have been around since the 1800s, when British traffic officers used to rotate gas lamps that burned red and green to control the movement of mostly horse-drawn vehicles.