Many cities are replacing their incandescent traffic lights with LEDs, despite the higher initial cost. Here's why that's ...

We’ve talked about this tiny gadget before: the Flipper Zero. Officially, it’s a $170 tamagotchi-fied hacking gadget with a sub-gigahertz radio and some accessory pins. Unofficially, it’s a menace’s ...

Traffic lights help traffic flow by directing specific lanes to go and others to stop. Some are more complex and include signals for buses. But at the end of the day, they're devices with red, yellow, ...