The idea of electricity started around 500 B.C. as the Greek philosopher Thales experimented with amber, a fossilized tree sap, by rubbing it and observing that it starts to attract certain types of materials, this is the first documented study of static electricity. In 1646 the term electricity was coined by Walter Charlton to describe the attraction of the different materials. Throughout the 1700’s many advancements in the study of electricity were made to include the …showed first 75 words of 1215 total…

…showed last 75 words of 1215 total…at the same speed of 90 revolutions per minute. 6. The wicket gates are a series of 20 adjustable vanes, resembling vertical blinds. They control the volume of water flowing through the turbine. 7. The 172-ton hydraulic turbine resembles a large water wheel. The turbine converts the energy of falling water into mechanical energy to drive the generator. 1. The Alliance to Save Energy 1200 18th Street, NW, Suite 900 Washington, DC 20036 Phone: 202/857-0666 Fax: 202/331-9588 info@ase.org www.ase.org