Slide rule marked "Satellite Hand Computer" used by John Glenn during his training for the Friendship 7 space flight

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1962

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The Ohio State University

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Metal, three-disc circular slide rule marked "Satellite Hand Computer" used by John Glenn during his training for the Friendship 7 space flight in 1962, manufactured by the Batori Computer Company.
Artifact Size: 9.5 inch diameter.
Credit: John Glenn Archives, The Ohio State University.

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