Word: sustained
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Dates: during 1970-1979
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...West End Horror, Meyer observes: "Everyone has this one fantasy about success and money, that it will solve all his problems. Money will do this in the short term: it will pay the bills. But it throws the real problems into sharp relief. Like, why can't one sustain a relationship...
...very high temperatures (which impart great velocity to the nuclei), 2) high density (the nuclei crowded together to increase the probability of head-on collisions), and 3) confinement of the high-speed, densely packed nuclei for a long enough time to enable the fusion reaction to occur and to sustain itself...
Tiny Bombs. Still, to join enough deuterium and tritium nuclei to sustain a fusion reaction requires heroic efforts. Deuterium-tritium gas mixtures must be heated to as much as 100 million degrees Celsius and be maintained at that temperature for about one second at a density of about 1014 (100 trillion) particles per cubic centimeter. Scientists have taken two different routes in their efforts to achieve these critical conditions. One is to use a "magnetic bottle" -an enclosing magnetic field-to contain the hydrogen fuel. The other is to use lasers or electron beams to make miniature hydrogen "bombs...
...temperature of the plasma is raised closer to fusion temperatures by passing electric currents and shooting beams of high-energy atoms through it. With these techniques, tokamaks have come the closest of any magnetic device to the magic combination of confinement time, temperature and plasma density necessary to sustain fusion. At the Princeton University Plasma Physics Laboratory, scientists regularly heat the plasma in the Princeton Large Torus until it glows like an ectoplasmic bagel and have just achieved a density of 1014 particles per cubic centimeter, a confinement time of .10 second and a temperature of 35 million degrees Celsius...
...unnecessary. A mile run in eight minutes, which is a good hacker's pace, will burn roughly 100 calories. Faddists' diets and food additives such as protein powders have their adherents, but experts are nearly unanimous in saying that normal, balanced meals, easy on the fats, will sustain a runner perfectly well. Marathoners have taken to loading up on carbohydrates for several days before a race, to pack their bodies with glycogen, but since it takes about 20 miles to run through a normal supply of glycogen, spaghetti has no special magic for short-winded strivers...