Word: hydrogenic
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...hotter during the next ten billion years. By that time the earth's surface temperature will be lifted to about 750° Fahrenheit, hot enough to boil away the oceans, char organic matter, and melt tin, lead and zinc. Then the last of the sun's hydrogen atoms will be converted into helium. With no more fuel on hand, the sun will cool and fade...
...Harold Clayton Urey (1934), Columbia University professor of chemistry, deeply concerned with the social consequences of science, discoverer of "heavy hydrogen" and "tagged atoms...
This was not new, for natural "green-sands" and artificial zeolites have long been used for such softening. But a slightly more complex resin of the same type proved able to draw even sodium atoms out of solution, replace them with hydrogen. This merely substituted acid for salt, but still another resin, made with amines instead of phenol, extracted the acid intact, leaving pure water. Both resins were gradually used up but could be revived by reverse treatment with stronger solutions...
...Removal of ammonia, sulfur dioxide, hydrogen sulfide from gas supplies...
...theory of their origin to the American Physical Society, meeting at the University of Chicago. They do not come from outer space as electrons: that would require a million billion electron volts. More probably the original missile from the remote regions of the universe is a proton, a bare hydrogen nucleus moving at terrific velocity with energy of 200 million electron volts. When it strikes the earth's atmosphere it breaks up either by explosion or collision and, like an earthbound skyrocket, forms a spray of smaller particles, called mesotrons. These in turn, colliding with oxygen and nitrogen molecules...