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

Astonishing Old Calculator

Astonishing Old Calculator

Additional information

Cliff explains his passion for two Friden EC-132s.

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

Calculator Unboxings: http://bit.ly/CalcUnbox

Millionaire Machine: https://youtu.be/wwh0KH-ICCw

Additional thanks to http://www.oldcalculatormuseum.com

Read more about the machine at: http://www.oldcalculatormuseum.com/friden130.html

Don Bradman's Duck

Don Bradman's Duck

Japanese Paper Balloon

Japanese Paper Balloon