Word: hydrogenating
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...astronomers realized that most of the universe's 90-odd elements, or types of atoms, had been "cooked" not at the moment of the universe's explosive birth but inside the hot furnaces of subsequently formed stars in fusion processes similar to those that occur when a hydrogen bomb detonates. But as they gazed out upon the heavens with their telescopes and spectrometers, astronomers found that the composition of stars varied enormously, containing different atoms and in different proportions...
...girth of 100 million miles or more, but now is only a few miles in diameter. A teaspoonful of its material weighs as much as 100 million tons, and the star's gravitational force is so strong that it pulls away a steady stream of gases, mostly hydrogen and helium, from its larger companion. As the gases spiral toward the neutron star, they heat up, reaching such high temperatures (up to 10 million°C) and densities that the atoms of hydrogen smash into each other and fuse. This causes a runaway thermonuclear explosion that spews a torrent...
...Soviet news agency TASS announced last week that Nobel Peace Prizewinning Physicist Andrei Sakharov, exiled to the city of Gorki since 1980, would not be allowed to accept an invitation from Vienna University to teach there for a year. The ostensible reason: Sakharov, who helped develop the Soviet hydrogen bomb in the 1950s, knows too many state secrets...
...Health, acknowledged that the first cases might have been caused by some "environmental irritant." Investigators had noted the presence of a yellow powder, possibly pollen, on some windowsills of one school near Jenin, and the air in the vicinity of the school was found to contain a trace of hydrogen sulfide. Doctors in Hebron observed slightly excessive amounts of calcium and sodium in the blood of some of their patients. Said one local doctor: "There is no sign of poisoning. Still, something has happened to these girls...
...lower altitudes, laser beams, like any light, are readily diffused by clouds and even fog.) Charged particles, on the other hand, would be influenced by the effects of the earth's magnetic field. But researchers are working on machines that shoot particles with no electrical charge, like simple hydrogen atoms, whose trajectory would be unaffected by magnetism...