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"I'm strictly an ivory-tower person. I can explain things but I can't do things."
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![]() How can you go between the void of space and oxygen-rich interior of your space craft?
The phrase "air lock" and the basic purpose was first used in the mid-19th century in relation to sea-going vessels.
This is perhaps the earliest usage of the phrase in science fiction. However, the idea was put forward much earlier; see the entry for the double-door vestibule from Astor's 1894 novel A Journey in Other Worlds. Comment/Join this discussion ( 0 ) | RSS/XML | Blog This | Additional
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