The science pros at The King of Random warn against a dangerous lithium battery experiment you should never try.

Despite the difference in numbers, 20V and 18V batteries deliver identical power. The voltage difference is just a matter of ...

In reality, 50 meters (or 5ATM) is enough water resistance to handle short periods of surface-level swimming, showers, scrubbing the dishes, etc. Feel free to wash your car with your smart ring on, ...