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Hello there.

This is Numberphile. We mainly post videos about mathematics and just numbers in general.

The Electric Slide Rule

The Electric Slide Rule

Cliff Stoll shows off an electric-powered slide rule.

Audible (free trial): http://www.audible.com/numberphile (sponsor)

Cliff's Klein Bottle business: http://www.kleinbottle.com

More videos with Cliff: http://bit.ly/Cliff_Videos

Circular slide rule: https://youtu.be/xRpR1rmPbJE

More on logs: https://youtu.be/VRzH4xB0GdM

Objectivity videos: http://bit.ly/Objectivity

Might Black Stump T-Shirts: http://bit.ly/Black_Stump_T

UNCRACKABLE? The Collatz Conjecture

UNCRACKABLE? The Collatz Conjecture

Paper Calculator

Paper Calculator