13. Are airlocks just used in space? (A K2S Question)

From The Space Library

Airlocks were used for hundreds of years before the development of spaceflight in undersea, mining and construction work, as well as for medical isolation. All spacecraft and many other vehicles designed to operate in hostile environments have airlocks. Most spacecraft have more than one airlock, some large enough for vehicles and cargo to pass through.

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Answer provided by Russell Romanella

Question and Answer extracted from the book Kids to Space - by Lonnie Schorer

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