We may earn revenue from the products available on this page and participate in affiliate programs. Learn More › Solar-powered water pumps harness energy from the sun to efficiently move water from ...

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 ...

When you think about cutting your utility bill, your mind probably jumps to energy-guzzling appliances like your fridge, TV or washing machine. But here’s something you might not realize: your water ...