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.
He's ventured to the abyss of black holes, wagered on the information paradox and floated around in zero gravity. Meet the man, the legend, the super scientist: Stephen Hawking.
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?