Word: hydrogenic
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...houses no telescope but a powerful atom-smasher, one of the two biggest in the world. The other is being readied at East Pittsburgh by Westinghouse Electric. Last week, after years of planning and construction, the Carnegie monster started its first test runs, hurling streams of protons (nuclei of hydrogen atoms) into a quartz plate at 5,000,000 volts...
Main reason why Dr. Lawrence is so loath to part with his cyclotron is that he is now engaged in the most significant problem of his career: the effect of neutron rays on cancer of human beings. The cyclotron whirls ions of heavy hydrogen (deuterons) between the poles of a huge electromagnet, then hurls them into a drumlike vacuum chamber. When they are charged with nearly eight million volts of energy, the ions are shot against a target of light metal, usually beryllium. The bullets knock out streams of neutrons, tiny particles about the same weight as protons but carrying...
Professor Fermi found them by bombarding uranium with a stream of neutrons (tiny particles which weigh about the same as a proton or hydrogen nucleus but have no electric charge). His bombarding neutrons slipped into the hearts of the uranium atoms, forming an unstable new element, ckarhcuium-No. 93. Similarly, in 1936, Dr. Fermi created a few atoms of ckaosmium-No. 94. Some of his other discoveries about neutrons: Having no electric charge, neutrons are not affected by the negative electric field outside an atom or by the positive charge on its nucleus. The only thing that stops them...
...John Douglas Cockroft and E. T. S. Walton performed the first artificial nuclear disintegrations. Using protons (hydrogen nuclei) speeded up in a high-voltage combination of transformers, rectifiers and condensers, Cockroft and his co-worker split lithium atoms, created helium...
...transformation, but undergoing no conversion itself. Since chlorophyll is not effective as a catalyst when extracted from the plant, chemists have been unable to study its action. It is composed of two separate pigments, blue-green chlorophyll A and yellow-green chlorophyll B, whose atoms of carbon, hydrogen, and nitrogen are arranged in rings similar to that of the red pigment in human blood corpuscles. Main difference between the chemical composition of chlorophyll and the coloring matter of blood cells is that the former contains magnesium, the latter iron...