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 ...

Explore the fascinating world of traditional craftsmanship with our video on "Making Cow Bullock Cart From Bamboo." This ...

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 ...