American Chemical Society, an organization of chemists and chemical engineers. It is the largest scientific society in the world. Its aims include the encouragement of research; the raising of the standards of professional ethics, education, and achievement; and the increase and spread of chemical knowledge. The society has over 30 professional divisions. Its numerous publications include Chemical and Engineering News, Journal of the American Chemical Society, and Chemical Reviews. The society was founded in 1876. Membership is over 160,000 in the United States and Puerto Rico. Headquarters are in Washington, D.C.
We take much for granted about our universe, like it's getting bigger. What if the universe stopped expanding and started collapsing inward with a giant crunch?
He is famous for a phrase he never said, for wearing turtlenecks and for hosting the original 'Cosmos' TV series. As enthusiastic about the stars as he was about marijuana, Carl Sagan led a very surprising life. Here are 10 cool facts.