1 Hydropower is the most efficient way to generate electricity. 2  Modern hydro turbines can convert as much as 90% of the available energy into electricity. 3  The best fossil fuel plants are only about 50% efficient. ( 4 1). 5  In the U.S., hydropower is produced for an average of 0.85 cents per kilowatt-hour (kwh). World-wide, about 20% of all electricity is generated by hydropower. ( 2 1). 3  Hydropower provides about 10% of the electricity in the United States. ( 4 1). 5  The United States is the second largest producer of hydropower in the world.
Lincoln's Diagnosis: MEN2B. The Physical Lincoln shows that President Abraham Lincoln had an extremely rare disease called MEN2B -- multiple endocrine neoplasia, type 2B. MEN2B is a genetic disorder in which long-bones and nerve cells grow excessively. Without treatment, 100% of people develop thyroid cancer and 50% also develop a tumor in the adrenal glands.
Mozart 'may have had Tourette's' Mozart apparently showed evidence of the condition in his music A new Channel 4 documentary is to suggest that Mozart suffered from the compulsive obsessive disorder Tourette's Syndrome. The claims have been made by British composer James McConnel, who himself has the condition. McConnel says the clues are to be found in letters written by Mozart as well as his music.