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1
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Launched by Russia on Oct. 4, 1957.
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2
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One type of rocket that launched Americans into space.
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3
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An ingredient in gunpowder.
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4
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Formed in October of 1958 by the U.S. government.
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5
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Newspaper that mocked Goddard's lack of 'basic physics'.
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10
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Developed the V2 rocket.
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11
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A second ingredient of gunpowder.
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12
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An 1280 land mine.
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13
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American scientist that experimented with liquid fuel rockets.
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15
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Country where Britain first encountered rockets.
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16
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People credited with the discovery of gunpowder.
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