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...Southern California's much-touted sunshine is, ironically, an essential accomplice in making smog so irritating to the eyes and so dangerous to health. The assorted hydrocarbons and nitrogen oxides spewed out by chimney stacks and tail pipes are bad enough in the raw. But sunlight sets up photochemical reactions involving such chemicals as ozone (a deadly poison) and nitrogen dioxide (an insidious and lethal gas when it hits the lungs). U.S. Public Health Service Toxicologist Sheldon Murphy neatly proved the perils of sunlight by exposing guinea pigs to city-street concentrations of exhausts. Unirradiated, the gases did little...

Author: /time Magazine | Title: Medicine: The Deadly Air | 12/7/1962 | See Source »

Using this system of "ion synthesis." R.P.I, chemists have taken nitrogen dioxide gas (NO2) and ionized it by squirting it against an electrically charged metal plate at one end of a vacuum tube. As soon as the gas molecules pick up electric charges, they respond to electrical forces and are whisked through a charged grid at a predetermined speed. After traveling a short distance, they hit molecules of vaporized benzene (C6H6) and stick to them, forming nitrobenzene (C6H5NO2). The hydrogen atoms left out of the combination form gaseous hydrogen...

Author: /time Magazine | Title: Chemistry: Ion Synthesis Makes Better Rocket Fuels | 12/7/1962 | See Source »

When Watson and Crick began their research in England, DNA (Deoxyribose Nucleic Acid) had already been identified as the genetic substance of cells. Information on its chemical composition suggested that it was a very long, thin molecule made up of sugar groups (deoxyribose), phosphate groups, and nitrogen-containing "bases." Further, X-ray diffraction patterns of fibrous DNA indicated that the form of the molecule was a double helix...

Author: By Andrew T. Weil, | Title: J.D. Watson Wins Nobel Prize for Medicine | 10/19/1962 | See Source »

Everywhere there is color. The huge concrete shielding blocks are green, purple, and gray. Pipes are blue, nitrogen tanks a vivid yellow, heavily insulated cables are red, and black. Overhead ventilation ducts are fire red. The personnel of the C.E.A. are oblivious to the gaudy, nursery school quality of their surroundings. "It's better than just having everything gray," said a technician, "but I don't suppose it really matters much. You get used to the color, whatever...

Author: By J.michael Crichton, | Title: New Accelerator Probes Structure of Proton | 10/13/1962 | See Source »

Some have theorized that the planet is nothing but a baked desert; others that it is covered with oceans. Still others have concluded that Venus' atmosphere is mostly carbon dioxide and nitrogen; they argue that there is neither enough water nor enough oxygen there to support life...

Author: /time Magazine | Title: Science: Venus Observed | 9/7/1962 | See Source »

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