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Would the sacrifice be worthwhile? Dr. Bacher thinks not. Even old-style atomic bombs, he points out, are too big to use economically on many military targets. Finding worthy targets for hydrogen bombs, 1,000 times more powerful, would be harder still...

Author: /time Magazine | Title: Science: Hydrogen Dinosaur? | 5/15/1950 | See Source »

...Most large metropolitan areas," says Dr. Bacher, "include many sections that are covered by water or otherwise unsettled. Thus a hydrogen bomb would blast many, square miles whose destruction would contribute in no way to the effectiveness of the bomb. Atomic bombs, on the other hand, could presumably be dropped so as to avoid overbombing uninhabited areas. Furthermore, it was found in the last war that a saturation raid which greatly hampered fire-fighting forces caused damage far beyond the areas of immediate blast effects. Considering all these factors, it seems likely that there is no metropolitan area which could...

Author: /time Magazine | Title: Science: Hydrogen Dinosaur? | 5/15/1950 | See Source »

...real expert gave his opinion last week about the hydrogen bomb. In the current Scientific American, Dr. Robert F. Bacher, professor of physics at CalTech, a former (1946-49) AECommissioner (and therefore an inside authority), speaks up frankly. His opinion of the hydrogen bomb: it is not practical as a military weapon. Carefully omitting secret details. Dr. Bacher points out that hydrogen fusion is not really a new primary source of atomic energy. It is only a new way of using the energy in old, familiar uranium...

Author: /time Magazine | Title: Science: Hydrogen Dinosaur? | 5/15/1950 | See Source »

...hydrogen bomb's necessary ingredients (a principal one, Dr. Bacher implies) is tritium, the heavy form of hydrogen with one proton and two neutrons in its nucleus. Tritium must be made in a chain-reacting pile by a reaction that costs one free neutron for every atom of tritium produced. There are plenty of free neutrons in a pile, but they originate in fissioning atoms of uranium-235 and are normally used to form plutonium (for atom bombs) out of nonfissionable U-238. Each neutron that is used to form an atom of tritium means less plutonium...

Author: /time Magazine | Title: Science: Hydrogen Dinosaur? | 5/15/1950 | See Source »

...under secretaryship abandoned by William H. Draper. Navy Secretary John L. Sullivan ($15,000) and his Under Secretary W. John Kenney ($10,000) were thinking of leaving, too. There were two $15,000 openings on the Atomic Energy Commission (former Iowa editor W. W. Waymack had left, Physicist Robert Bacher had submitted his resignation). Admiral W. W. Smith's $12,000 chairmanship of the Maritime Commission was also open...

Author: /time Magazine | Title: THE PRESIDENCY: Wanted: Iron Men | 5/2/1949 | See Source »

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