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Book cover: Computing: A Concise History
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Full Moon on July 4th
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Book cover: Computing: A Concise History
Learn more
Book cover: American Missiles
Learn more
Full Moon on July 4th
Learn more
Paul E. Garber
Learn more
Maj. Gen. Kenneth Weir, USMCR (Ret.)
Learn more
Planum Boreum
Learn more
Bond Chronometer
Learn more
The Sun - July 6, 2012
Learn more
Charles Wilkes
Learn more
Exploring Expedition
Learn more
Harold Gatty and Wiley Post
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