Mystery Object #7
Our Own Devices
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Ever wonder how a rotary telephone works, how sailors and pilots navigated by the stars, or how mechanical calculators perform complex math using only gears? Then you've come to the right place! Our Own Devices is a channel dedicated to the fascinating world of vintage technology, and the many elegant and ingenious ways our ancestors solved even the most complex technical problems. Questions or comments? Have a fascinating device you'd like covered on the channel? Please contact me at [email protected] Want more fascinating history? I am a regular staff writer for Today I Found Out and many of its sister channels: https://www.youtube.com/@TodayIFoundOut
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Video Description
Today's Mystery Object is a medical instrument designed to probe a particularly sensitive part of the human body. Leave your guesses in the comments, and I will see you tomorrow with the correct answer.
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