Physics spoiler alert: There are actually two methods to move water that don't require an external power source—but that’s not the same thing as running on free energy. The first method is the siphon ...

Your water pump moves coolant through your engine to help ensure it doesn’t overheat. Without it, your car can essentially die of heat exhaustion. (That means you’ll want to get your water pump fixed ...

Almost all modern vehicles use a liquid cooling system for their engines. The concept is pretty straightforward and has been around for ages. The system consists of a radiator to provide cooling and a ...

Jon covers artificial intelligence. He previously led CNET's home energy and utilities category, with a focus on energy-saving advice, thermostats, and heating and cooling. Jon has more than a decade ...