Word: radio
(lookup in dictionary)
(lookup stats)
Dates: during 1950-1959
Sort By: most recent first
(reverse)
...free world was crying for U.S. satellite action. But the Vanguard program still sputtered and faltered. Suddenly, Van Allen got a radio message from Pickering. The Army had at last got permission to try its satellite. He asked if Van Allen would approve transfer of his instruments to Jupiter...
...Ludwig to pack up all his apparatus and rush it to the Jet Propulsion Laboratory at Pasadena. Then he flew back from New Zealand. In Pasadena, he and Pickering decided that the payload-basically a Geiger counter to detect cosmic rays in space and two incredibly light but powerful radio transmitters-would have to be modified in one respect. It contained a miniature tape recorder to record the cosmic-ray data during a trip around the earth and then transmit it quickly when triggered by a coded signal sent up from the ground. Designed for Vanguard, this elegant apparatus would...
...Allen's conclusions were confirmed when Pioneer IV soared past the moon and into orbit around the sun. Its tiny, 1-lb. radio transmitter, which was followed by Jet Propulsion Laboratory's receiving stations for 400,000 miles, reported that the outer radiation belt does not die off evenly. Beyond it are irregular bursts of radiation that may be clouds of electrons and protons arriving fresh from the sun. Such invisible clouds in space may prove serious hazards for future deep-space voyagers...
...interests is a 20-lb. satellite scheduled for launching next fall. If all goes well, it will settle into a slim, elliptical orbit, soaring out six earth radii (24.000 miles) at apogee. It should stay up for hundreds of years, and it will have solar batteries to keep its radio voices alive for a long time. Its duty will be to report continuously on the radiation belt, study how it is affected by sunspots and other solar eruptions. Its fluctuations may have important effects on the earth's weather...
...Geiger tube set up to give a pulse when 64 radiation particles have passed through it, is thus intended to record areas of relatively low radiation. Here the radiation is so heavy that the counter is swamped and no meaningful count is recorded. Its small oscillations are mere radio noise...