Word: atomic
(lookup in dictionary)
(lookup stats)
Dates: during 1970-1979
Sort By: most recent first
(reverse)
...VICTIMS are highly discriminated against in Japanese society. We are not hired for jobs and people do not want to marry us because they fear that we carry radiation disease within us. We are taught to be ashamed and to hide the fact that we are victims of the atom bomb...
Apart from ISR, all atom smashers rely on the same basic principle: subatomic particles-usually protons-are accelerated to high velocities and slammed at stationary targets. Upon impact, the nuclei in the target atoms break apart, scattering the fragments for physicists to observe. This "bash-and-see approach" has drawbacks. As an accelerator's bullets approach the speed of light, the strange effects predicated by the relativity theory begin to take a toll: the proton's mass becomes much larger than that of the stationary targets. Much of the proton's energy is spent simply in pushing...
Except for the space program, there is hardly a costlier quest in all of science than exploration of the inner universe of the atom. To peer more deeply into that hidden world-in which more than 100 strange subnuclear particles have already been discovered -scientists have been forced to build ever more powerful atom smashers. Trouble is, the cost of such monsters is now so high-$250 million, for example, for the 500-billion-electron-volt (BeV) accelerator now nearing completion at Batavia, Ill.-that high-energy physicists are anxiously looking for alternate ways of getting a bigger bang...
...economizing technique has now been put to work by imaginative scientists of the 12-nation European nuclear research center (CERN) outside Geneva. It is incorporated in a remarkable, new and relatively low cost ($80 million) atom smasher called ISR (for Intersecting Storage Rings) that has broken all existing energy records...
...leap second grows out of science's pressing need for extremely accurate clocks. In 1967, an international agreement redefined the basic unit of time -the second-in terms of the precise tuning-fork-like vibrations of the cesium atom (9,192,631,770 cycles per sec.). But while cesium, or atomic, clocks are the most accurate timepieces ever built by man (they lose no more than one ten-millionth of a second in a day), other measures of time-hours, days, months -are still geared to the earth's rotation. Unfortunately, as clocks go, the earth is less...