Word: fissionability
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...masthead of Newsweek magazine went a new name last week. Llewellyn Link ("Pete") Callaway Jr.. 55. advertising director (since 1959) of SPORTS ILLUSTRATED, took over as Newsweek publisher. Callaway's new post represents a fission of existing executive authority. He will shoulder some of the duties of Newsweek's Gibson McCabe. who. until Callaway arrived, served in a double capacity as both president and publisher...
...space, energy, communications, not in pyramids and cathedrals." For an age that has successfully defied the law of gravity, the great preoccupation, as Lippold sees it, is space-not only the getting of things off the ground, but also the many ways of opening things up, from atomic fission to psychoanalysis. "In the 20th century," he has said, "we do not look at things; we look through them...
...blushing girl astronaut. There are stacks of books so eerily old-fashioned that their manuscripts must have been found in somebody's attic, like Susan Peck, Late of Boston. And there are mountains of dull and dutiful books dedicated to teaching children everything from fishing to fission. Mostly, there are far too many books whose size and gaudy color will no doubt divert the uncertain shopper's eye from the enduring children's classics. But among the 1,600 children's books published in the U.S. last year are a few that are the best...
...report, AEC urged heavier stress on development of "breeder" reactors, which will create more nuclear fuel than they consume. Present-model nuclear reactors operate through fission of scarce and costly uranium 235. Natural uranium is mostly U-238; less than 1% of it is U-235. Breeder reactors would convert nonfissionable U-238 into fissionable plutonium, or convert the fairly common element thorium into fissionable U-233 (neither plutonium nor U-233 is found in nature). A few days before the 20th anniversary of the first chain reaction, AEC announced that its experimental plutonium reactor had achieved a self-sustaining...
Aerojet scientists mixed liquid ammonia (NH3) with powdered uranium oxide, sealed the mixture in a capsule and stuck the capsule in a nuclear reactor at Livermore Laboratory. When neutrons from the reactor hit uranium atoms in the capsule, they caused the atoms to fission, or split. The atomic fragments shot apart with enormous energy (200 million electron volts per fission), splintering ammonia molecules and knocking them in every direction. The fragments recombined at once. Some formed gaseous hydrogen (H2) or nitrogen (N2). But about half the ammonia that reacted formed the much-desired hydrazine (N2H4...