Armstrong line

English

Alternative forms

Etymology

Named after Harry George Armstrong (1899–1983), who determined this limit.

Proper noun

Armstrong line

  1. The altitude above sea level at which water boils without a pressurized environment, and at which a person would require a pressure suit or pressurized environment to survive, and avoid having their bodily fluids boil away.
    Synonyms: Armstrong's line, Armstrong limit

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Further reading
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