The letter discusses testing of the Pauling hospital oxygen meter and concerns about its ruggedness--specifically, its ability to survive being dropped onto a stone floor from a height of three feet.
Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen analyzers ended up doing such diverse jobs as monitoring astronauts’ respiration, maintaining packaged food safety, and preventing blindness in newborn babies.
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Prentiss, Spencer S. “Letter from S. S. Prentiss to Arnold O. Beckman,” July 11, 1945. Beckman Historical Collection, Box 19, Folder 8. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/9s161668w.
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