Amazing Old Calculator (Curta) - Numberphile

2012-10-07

[public] 753K views, 18.0K likes, 115 dislikes audio only

Alex's book: http://amzn.to/1l0yX46

The Curta is a pocket-sized, mechanical, digital calculator!!! It was invented by Curt Herzstark.

More links & stuff in full description below ↓↓↓

Shown here by Alex Bellos, author of Alex's Adventures in Numberland.

More about our contributors, including Alex, at http://www.numberphile.com/team/index.html

NUMBERPHILE

Website: http://www.numberphile.com/

Numberphile on Facebook: http://www.facebook.com/numberphile

Numberphile tweets: https://twitter.com/numberphile

Subscribe: http://bit.ly/Numberphile_Sub

Videos by Brady Haran

Patreon: http://www.patreon.com/numberphile

Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/

Brady's latest videos across all channels: http://www.bradyharanblog.com/

Sign up for (occasional) emails: http://eepurl.com/YdjL9

Numberphile T-Shirts: https://teespring.com/stores/numberphile

Other merchandise: https://store.dftba.com/collections/numberphile