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

Japanese Paper Balloon

Japanese Paper Balloon

Additional information

Using a kamifusen (a Japanese paper balloon). Featuring Tadashi Tokieda.

More Tadashi videos: http://bit.ly/tadashi_vids

Objectivity (videos by Brady about science objects): http://bit.ly/Objectivity

Discuss this episode on reddit: https://redd.it/7dkb81

Buy a paper balloon like this on amazon: http://amzn.to/2ASTUsR

Or check out this groovy planet one: http://amzn.to/2zOq3BV

Astonishing Old Calculator

Astonishing Old Calculator

Proth Primes

Proth Primes