As a kid, Perry Brown sometimes was called on to climb up steel grain bins to check if they were full. Now, Brown and partner Steve Erickson have invented and are selling a device that does the job ...

Who would have thought that oil would become the most powerful impetus for the development of wind energy in the 20th century? More precisely, the oil embargo imposed by the five opec Arab member ...

Almost half of the carbon dioxide produced on the planet is consumed by the oceans, living organisms, and plants. At the same time, plants play the most important role, since they not only absorb CO2 ...