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Luis Von Ahn Videos by Popular

Razing Of Sandy Hook School Massacre Site Begins Friday

10/25/13
The demolition of Newtown, Connecticut's Sandy Hook Elementary School, where 20 young children and six adults were shot to death last ...

Liberal NYC Democrat Wins Obama's Backing In Mayoral Race

09/23/13
President Barack Obama threw his support behind New York mayoral candidate Bill de Blasio, lauding his fellow Democrat's commitment to 'an ...

Full Interview: Luis von Ahn on Duolingo

11/30/11
Luis von Ahn cc photo by Susan028You may not know Luis von Ahn by name, but if you8217re online, you8217ve almost certainly encountered ... tags: AudiocaptchacrowdsourcingduolingoInterviewsLuis_von_Ahnrecaptcha

Spark 164 – December 4 & 7, 2011

12/02/11
On this episode of Spark Hackers in Space, Unoriginal Genius, and The Polyglot Web. Click below to listen to the whole show, or download ... tags: AudioCinnamon_NippardcrowdsourcingEpisodesgender_balancehackers_space_raceJane_Margolis

Luis von Ahn: Harnessing the Power of 100 Million People

06/08/11
Luis von Ahn Harnessing the Power of 100 Million PeopleThe Economist - Santa Clara Convention CenterFlash of genius How to translate the ... tags: captchaCenterClaracomputer_scienceConventionduolingoLuis_von_Ahn

Repeat Episode: May 9 & 11, 2010

05/07/10
This week, we8217ve prepared a collection of stories that originally aired in the fall of 2009. But never fear, we are working on a brand ... tags: afvamerica'sbroadcastingcanadiancaptchacbccorporation

Anti- Spam Book Recorder

12/10/08
Anyone who's spent much time online has encountered websites that require you to solve distorted word puzzles to 'prove you're human.' You ... tags: CAPTCHACarnegie_Mellon_UniversityCAT2030digitizeEducationLuis_von_AhnNews_Politics