Word: nitrogenous
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...chemical element which have different weights are called isotopes. Isotopes are Chemist Urey's special ty. He won a Nobel Prize for discovering deuterium, the heavy isotope of hydrogen which makes "heavy water" (TIME, Nov. 26, 1934). Later, one of the Urey crews produced large quantities of heavy nitrogen (TIME, Sept. 20, 1937). Nitrogen is present in all proteins. Heavy nitrogen atoms can be distinguished from the common kind by mass spectrographic means, but in protein reactions they run along with their lighter fellows, and so serve as "tagged atoms" or chemical spies to show where the nitrogen goes...
...Electric laboratories, Irving Langmuir was told by the director not to bother with practical applications, but to find out what he could about what went on inside the bulb of an incandescent lamp. Thereafter Langmuir spent three years "investigating facts," discovered some-for example, that a bulb filled with nitrogen or argon works better than an evacuated bulb-which now save electricity consumers several million dollars...
...scientific achievement most important to the Germany of World War I was only indirectly a military weapon, and has since been used far more in peace than in war. This was Fritz Haber's nitrogen-fixation process which enabled Germany to manufacture nitrates (for explosives) and other nitrogen compounds from thin air. Haber's name has been smirched in Nazi Germany...
...equalized to prevent static sparks, the tanker's crew joined a pipe line to the grapnel, fed it back to the Caribou to be coupled with her gas tank valves. While the two planes soared out over Foynes at 120 m.p.h., the tanker flushed the pipe line with nitrogen (to remove air, which, in combination with gasoline, might explode), pumped after it 800 gals. of fuel. Seventeen minutes later she uphauled the line, waved cheerio and cocked around for home. The Caribou knuckled down to her 3,500-mile flight against heavy winds...
Passengers with hangovers became clear headed when they began breathing a mix ture of 20% oxygen, 80% nitrogen. Others became violently airsick when they took off their masks, quickly recovered when they put them on again. All showed normal pulse and respiration rates, were able to eat comfortably without taking off the masks...