A rocket stove burns so efficiently that it ensures almost complete combustion prior to the flames reaching the cooking surface, so there is virtually no smoke. And they're easy to make! Click through (Diy Step Fitness)
How to Make Solar Cells. Solar cells convert the sun's energy into electricity, similar to the way plants convert the sun's energy into food through photosynthesis. Solar cells work by using the sun's energy to enable electrons in.
Groundbreaking Discovery: Man Solves Tesla’s Secret To Amplifying Power By Nearly 5000%