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Philip Van Horn Weems
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Wiley Post and Harold Gatty
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Weems Watch
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Winnie Mae Diagram
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Mariner 10 on the Launchpad
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Mariner 10
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Mariner 10 Trajectory
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Cesium Time and Frequency Standard
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Quartz Oscillator
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USS Alabama
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Quartz Resonator
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Sextant
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Discovery
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Launch of Telstar 1
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Transit Satellite
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Horten H IX V3 Plan
Learn more
Philip Van Horn Weems
Learn more
Wiley Post and Harold Gatty
Learn more
Weems Watch
Learn more
Winnie Mae Diagram
Learn more
Mariner 10 on the Launchpad
Learn more
Mariner 10
Learn more
Mariner 10 Trajectory
Learn more
Cesium Time and Frequency Standard
Learn more
Quartz Oscillator
Learn more
USS Alabama
Learn more
Quartz Resonator
Learn more
Sextant
Learn more
Discovery
Learn more
Launch of Telstar 1
Learn more
Transit Satellite
Learn more
Horten H IX V3 Plan