| Question 1: [47] U.S. President ________ obtained photographs of the Soviet facilities from Lockheed U-2 flights conducted since 1956. | |||
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| Question 2: Pressurized nitrogen, in the satellite's body, provided the first opportunity for ________ detection. | |||
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| Question 3: [17] During the flight the rocket began to rotate about its ________ and its engines were automatically turned off. | |||
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| Question 4: It was launched into an elliptical low earth orbit by the ________ on 4 October 1957, and was the first in a series of satellites collectively known as the Sputnik program. | |||
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| Question 5: [51] The United States was presently working on a separate development, ________, and was caught off guard by the Soviets' early launch, placing them behind the Soviets in the newly emerged space race. | |||
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| Question 6: There is also a replica on display at the World Museum in ________, UK. | |||
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| Question 7: They had been organized in ________ to sight the satellite through binoculars or telescopes as it passed overhead. | |||
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| Question 8: It also provided data on radio-signal distribution in the ________. | |||
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| Question 9: ________ (DARPA, created in 1958) | |||
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| Question 10: The unanticipated announcement of Sputnik 1's success precipitated the Sputnik crisis in the United States and ignited the Space Race within the ________. | |||
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