Dramatic video shows the moment a US fighter jet narrowly dodges an Iranian missile Democrats' chances of flipping Susan Collins' seat get major boost—poll Dietitians say you shouldn't take these ...

In this video, I build a 220V mini hydropower system in a rural village using simple tools and natural river flow. The ...

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 the ...