All over the world, countries are competing among themselves in the construction of renewable energy sources. In addition to ...

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 ...