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(Refeed) NSN | Profile: Luis von Ahn in Unsorted Other Videos | Science Flicks

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(Refeed) NSN | Profile: Luis von Ahn

(Refeed) NSN | Profile: Luis von Ahn

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Indexed: 30/05/2013 19:00
Views: 622
Source: Nova

Tags:
science
NOVA
PBS
scienceNOW
Neil
deGrasse
Tyson
video
games
Luis
von
Ahn
MacArthur
"genius"
reCAPTCHA
digitizing
books
ESP
spam
spammers

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