how did it navigate?
The Doppler effect could pinpoint where the satellite was along its orbit.
Sputnik 1
The launch of Sputnik also planted the seeds for the development of modern satellite navigation. Two American physicists, William Guier and George Weiffenbach, at Johns Hopkins University's Applied Physics Laboratory (APL) decided to monitor Sputnik's radio transmissions and within hours realized that, because of the Doppler effect, they could pinpoint where the satellite was along its orbit. The Director of the APL gave them access to their UNIVAC to do the heavy calculations required.
what happened to hungary during the cold war failure of the uprising in Hungary as evidence that the Cold War in Europe had become a stalemate. what is a precursor to hungarian revolution? Both Hungarian and German forces stationed in Hungary were subsequently defeated when the Soviet Union invaded the country in late 1944. what happened during the postwar situation? The Soviet Army occupied Hungary, with the country coming under the Soviet Union's sphere of influence. what is the space initiative of this latter mentioned country of influence? They constructed the first satellite - Sputnik 1, The first cosmonaut Yuri Gagarin was sent to the space when did this first satellite construction start? Somewhere in 1956 or 1957 who/what was responsible for its fabrication? Mikhail S. Khomyakov, Antenna Laboratory of OKB-1 what was its mission? It was launched it into an elliptical low Earth orbit on 4 October 1957. It orbited for three weeks before its batteries died and then orbited silently for two months before it fell back into the atmosphere. what was its unit at the backup was like? At least two vintage duplicates of Sputnik 1 exist, built apparently as backup units.
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Sputnik 1 [SEP] Satellite navigation
The launch of Sputnik also planted the seeds for the development of modern satellite navigation. Two American physicists, William Guier and George Weiffenbach, at Johns Hopkins University's Applied Physics Laboratory (APL) decided to monitor Sputnik's radio transmissions and within hours realized that, because of the Doppler effect, they could pinpoint where the satellite was along its orbit. The Director of the APL gave them access to their UNIVAC to do the heavy calculations required. Early the next year, Frank McClure, the deputy director of the APL, asked Guier and Weiffenbach to investigate the inverse problem: pinpointing the user's location, given the satellite's.