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Here is part of a 50's era training film series expaining how a mechanical computer was used to aim guns on a ship. Compared to today's dig (more)

Here is part of a 50's era training film series expaining how a mechanical computer was used to aim guns on a ship. Compared to today's digital computers it almost looks like Rube Goldberg's abacus but in it's day it was a game changer that proved devestating.

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