Word: nitrogenating
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...suffered one noble flop. Trying to put needed nitrogen into Venezuelan diets, he conceived the idea of a fishing industry. He bought trawlers, icing machines, hired Florida fishing experts, went to work. But Venezuela's distribution system cannot handle fish at any distance from the country's ports, and few Venezuelan housewives have any way to keep frozen fish frozen. But by and large, Rockefeller has served successfully for Venezuelans as a one-man development bank...
Proteins are enormously complicated molecules, and until Sanger's work on insulin, no one had ever been able to determine the structure of even the simplest of them. Chemists have known for many years that protein molecules are made of amino acids (nitrogen-containing organic acids) strung together in long chains or cables. By various kinds of rough treatment, the chemists could separate and count the amino acid building blocks. But this did not reveal their structural plan...
...offset the ferocious heat generated by the air's friction, the X-15's skin is made of Inconel X, a heat-resisting alloy that keeps its shape at a brightly glowing 1,350° F., when aluminum and ordinary steel have long since softened. Liquid nitrogen, which will not support combustion, is used as a coolant for both pilot and equipment, and is also vaporized to maintain pressure in the plane's interior. The pilot, who cannot breathe pure nitrogen, will have a private oxygen atmosphere inside his space suit...
...Evans summit boasts the Inter-University High Altitude Laboratory. There, climbers found a familiar piece of equipment: a massive, steel low-pressure chamber. Dr. Balke wanted to know whether his conditioned volunteers would be as subject to the bends and the chokes (painful, potentially fatal disorders caused by nitrogen bubbling out of solution in the blood) as a man zooming up from sea level...
...lacy pattern of little round balls in the background of this week's cover is from a deoxyribo-nucleic-acid molecule model built at Manhattan's Sloan-Kettering Institute. The grey balls represent carbon atoms; blue is phosphorous; yellow is nitrogen; red is oxygen; white is hydrogen. Molecules do not look like this, of course. The atoms in them are much too small to be seen, even with an electron microscope. The pattern shown is a small part, somewhat simplified, of the DNA molecule, which geneticists now believe is the carrier of heredity and the chemical master...