Word: nitrogen
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Dates: during 1960-1969
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...even at the spacecraft's relatively close distances, vegetation would be all but unobservable. The two Mariners, moreover, were designed only to determine whether Mars could support life. At week's end, investigators were already mulling over two important observations. Mariner 6 had failed to detect any nitrogen -an ingredient of all earthly life -but it found signs of water in the form of ice in the Martian atmosphere or on the surface...
...beef sandwich aboard the Gemini 3 flight in 1965 and littered the spacecraft interior with crumbs, the astronauts were allowed a supply of bread. To withstand the pure-oxygen atmosphere, which quickly dries bread and makes it crumbly, the slices of white and rye bread had been flushed with nitrogen, a process that keeps them fresh for two weeks...
...procedure. If the astronauts and the Apollo craft are indeed harboring alien organisms, the bugs could escape into the air when the hatch is opened, or be washed into the ocean while the astronauts are donning their biological suits. If the organisms are fond of oxygen or nitrogen-or thrive in salt water -they could begin to spread and multiply. Most scientists agree that the chances of life on the moon are remote, and some believe that any moon organisms would have reached the earth long ago on particles ejected from the moon during meteor impacts. If they are wrong...
...Auto-Ceptor crash-restraint system is especially useful for drivers of minicars. In case of collision, big nitrogen-inflated nylon balloons pop out of the steering column and dashboard, pinning motorists to their seats and keeping them from flying through the windshield. They deflate immediately after a crash, leaving motorists free to get out. Developed by Eaton, Yale & Towne Inc., the balloons would replace shoulder straps, which few motorists use any way (seat belts would still be needed for protection in rolling accidents). The Auto-Ceptor system works automatically: balloons inflate in one twenty-fifth of a second when...
...antibody molecule is a protein, made up of chains of amino acids, of which there are 20 varieties. In 31 years of detailed work, the Edelman team learned by chemical and physical analysis that this particular molecule contains 19,996 atoms (of hydrogen, carbon, nitrogen, oxygen and sulphur) grouped in 1,320 amino-acid units, which in turn are assembled with the aid of chemical bonds into two "light" chains of 214 amino acids apiece and two "heavy" chains of 446 each (see diagram). Schematically, the four chains, in which the acids are strung like beads, look like a letter...