Word: hydrogenate
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...conduct only one experiment. And after only four orbits, it disintegrated in flight. For all the brevity of its mission, though, the flight of the 29-ton SIV B vehicle last week was singularly important. It gave anxious earthbound scientists their first close look at the behavior of liquid hydrogen in space...
...systems. Controlling the attitude of a ship by ejecting gas through nozzles, for instance, is called "nozzle gas ejection ship attitude control." The longest nominal compound discovered by McNeill appeared in the Congressional Record, and sounded as if it had been translated literally from the German: "liquid oxygen liquid hydrogen rocket powered single stage to orbit reversible boost system...
Shuffling the Standings. After a plague of misfortune and mismanagement had put it three years behind schedule, the Surveyor success was doubly sweet. Equipment broke down during tests and had to be redesigned. The second-stage Centaur-the first liquid-hydrogen rocket-had several mishaps and had flown only one completely successful mission before last week's shot. Summarizing the program, the House Space Committee characterized it as "one of the least orderly and most poorly executed NASA projects...
Beginning with the light of shortest wave length (and thus the highest energy), they aimed a beam from the grating through a Pyrex cylinder containing hydrogen and deuterium iodide gas, which breaks down when exposed to light. When molecules of deuterium iodide were struck by photons in the light beam, they split into fast-moving atoms of deuterium and sluggish, heavier atoms of iodine. Some of the speeding deuterium atoms in turn collided with hydrogen molecules in the cylinder, knocking off one of the hydrogen atoms and combining with the other to form deuterium hydride...
...wave length and lower energy, until they failed to find molecules of deuterium hydride in the cylinder-no matter how long the gases had been exposed to the light. At this particular wave length, it seemed clear, the deuterium atoms had not been given enough velocity to split the hydrogen molecules and combine with the freed hydrogen atoms...