ryanfsalerno:

From the guys who made reCAPTCHA.

PopTech 2009 speaker Luis von Ahn invented ReCaptcha, a program that uses squiggly characters that humans easily decipher but blocks spambots – and helps digitize millions of old texts. The CMU professor also makes games like Duolingo, that let you learn a language for free, while simultaneously translating the Web.

# language PopTech 2009 crowdsourcing internet education
Reblogged 5 months ago from ryanfsalerno (51 notes)
Source: ryanfsalerno
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  5. notesandstuff reblogged this from poptech and added:
    this is amazing.
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  10. adorabubbly reblogged this from poptech and added:
    Oh my god, this is the most clever way to practice languages. This could be an incredibly valuable tool to be used in...
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    I’m trying this for French
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  19. poptech reblogged this from ryanfsalerno and added:
    PopTech 2009 speaker Luis von Ahn invented ReCaptcha, a program that uses squiggly characters that humans easily...
  20. ryanfsalerno posted this