![United States / Project Gemini / Gemini 4 / Gemini 6A / NASA / Apollo program / Spaceflight / Human spaceflight / Gemini mission United States / Project Gemini / Gemini 4 / Gemini 6A / NASA / Apollo program / Spaceflight / Human spaceflight / Gemini mission](https://www.pdfsearch.io/img/bca60de450fd9fab807d9e215025301d.jpg) Date: 2013-11-19 22:04:50United States Project Gemini Gemini 4 Gemini 6A NASA Apollo program Spaceflight Human spaceflight Gemini mission | | EXPERIMENTS O N VISUAL ACUITY AND THE VISIBILITY OF MARKINGS O N THE GROUND I N LONG-DURATION EARTH-ORBITAL SPACEFLIGHT by S. Q. DuntZey, R. W. Austin, J. L..;.Harris,and J . H. TaylorAdd to Reading ListSource URL: www.honeysucklecreek.netDownload Document from Source Website File Size: 3,48 MBShare Document on Facebook
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