The theory behind hydropower is very simple: water obeys gravity and imparts the gained kinetic energy onto a turbine, which subsequently drives a generator.  The devil here is, of course, in all ...

If you often lose power where you live, whether because of seasonal storms such as hurricanes or due to other problems with the electrical grid, having a whole-house generator can be very convenient.

Dylan Haas is a Lead Shopping Reporter for Mashable, where he covers all things gaming, laptops, fitness, and shopping events like Black Friday and Prime Day. Before joining the team at Mashable, ...