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At the Staff of Asclepius, technology is often showcased because it is used to advance the physical well being of many different people. TED videos are most commonly posted since they are cutting edge and also include humanitarian and environmental topics. If you come across other YouTube videos that you think are fascinating send a link to me tara.miller21 (@) gmail.com

VIDEO: How annoying CAPTCHA meant to catch spam software was redesigned to harness human potential.

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. At TEDxCMU, 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.

http://duolingo.com — With Duolingo you learn a language for free, and simultaneously translate the Web.