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Airlock: Difference between revisions
From Tardis Wiki, the free Doctor Who reference
adding image of an airlock
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:''For the episode of the ''[[Doctor Who]]'' serial ''[[Galaxy 4 (TV story)|Galaxy 4]]'' entitled "Air Lock", see [[Air Lock|here]].'' | :''For the episode of the ''[[Doctor Who]]'' serial ''[[Galaxy 4 (TV story)|Galaxy 4]]'' entitled "Air Lock", see [[Air Lock|here]].'' | ||
[[File:Airlock on Tiger Moth.jpg|thumb|Airlock for the ''[[Tiger Moth]]''. ([[HOMEVID]]: ''[[Shakedown: Return of the Sontarans]]'')]] | |||
An '''airlock''' was a device that permitted the passage of people and objects between two drastically different environments, such as between a pressurised space and a vacuum or between an underwater and dry environment. The lock usually consisted of two airtight doors in series which did not open simultaneously. This allowed the intermediate chamber to change from one environment to the other. | An '''airlock''' was a device that permitted the passage of people and objects between two drastically different environments, such as between a pressurised space and a vacuum or between an underwater and dry environment. The lock usually consisted of two airtight doors in series which did not open simultaneously. This allowed the intermediate chamber to change from one environment to the other. | ||
