How Vacuum Gear Shifting Mechanism in Automobile Works

Operation of the vacuum gear shifting mechanism in the automobile is explained & compared with the fish in the ocean, who are subjected to tremendous pressure caused by the weight of water above. Free and Easy (1940)
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[@CharredSteak]

You know what, although this may seem to needlessly complicate things, it really shows how much progress was made in the automobile world on the 20th century.

[@daddyshark7332]

hahaha.. nice movie