Pittsburgh, United States · Apr 3, 2011

TEDxCMU 2011

TEDxCMU 2011 is a speaking event in Pittsburgh with a lineup of 1 speaker, including Luis von Ahn.

1speaker
Who spoke Official site
Other editions
2014
The lineup

Who spoke at TEDxCMU 2011?

From the stage

Sessions worth replaying

A selection from the agenda, with video where we found it.

Session

Massive-scale online collaboration

After re-purposing CAPTCHA so each human-typed response helps digitize books, Luis von Ahn wondered how else to use small contributions by many on the Internet for greater good. In this talk, he shares how his ambitious new project, Duolingo, will help millions learn a new language while translating the web quickly and accurately -- all for free.

Luis von Ahn
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All TEDxCMU editions