Word: allens
(lookup in dictionary)
(lookup stats)
Dates: during 1960-1969
Sort By: most recent first
(reverse)
Ever since University of Iowa Physicist James Van Allen discovered the earth-circling belts of radiation that bear his name, scientists have been trying to answer a simple but perplexing question: How do the electrons and protons that are trapped in the outer belt get there in the first place? Now, summarizing data he and other scientists have obtained from a host of recent satellites, Van Allen himself has reported a possible answer. At a meeting of the American Physical Society in Manhattan, he suggested that the charged particles are drawn into the belt by a high voltage generated across...
What makes the difference, Van Allen says, is an electrical potential of 50,000 volts generated across the earth's comet-shaped magnetic field by a combination of two complex effects. As the solar wind blows by the earth, compressing the magnetic field into a rounded shell on the daylight side and sweeping it into a long tail on the night side (TIME, April 22, 1966), it produces friction on the outer boundary of the magnetic field. This friction generates a positive electrical charge on the morning side of the boundary, a negative charge on the opposite, or evening...
...result, Van Allen says, protons striking the morning side of the boundary are attracted into the field by the negative charge on the evening side. Similarly, electrons hitting the evening side of the boundary are pulled into the field by the positive charge on the morning side. This new theory may also explain why the auroral displays consist entirely of electrons or entirely of protons streaming down through the atmosphere. The solar particles, intermixed on their journey through space, have apparently been segregated by the high voltage...
After Hershey released his directive, however, Allen W. Silver, assistant professor of Sociology and chairman of the committee, called for immediate suspension of all military recruitment at the University...
...three quarters, the Bunny eleven began to come back. With less than three minutes to play and the score 14-0, quarterback Pete Karageannes scooted around the right end from 15 yards out to score. His two-point conversion pass was good, tipped into the waiting arms of Charlie Allen by a Yale defender...