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Wikipedia Collective Thinking Un tee-shirt (Quartermane/Flickr) L’universitaire américain Paul Duguid, spécialiste des médias, a travaillé sur Wikipédia. Il évoque le modèle de savoir démocratique de l’encyclopédie en ligne et ses limites. « La “connaissance” est un bien que nous acquérons par un engagement plus actif », estime-t-il. Professeur à l’université de Californie à Berkeley, a écrit avec John Seely Brown, de Xerox, « The Social Life of Information » (« La vie sociale de l’information »), Harvard Business Press, 2000. Il a publié une étude sur Wikipédia et les limites de l’auto-organisation dans la revue en ligne First Monday. Wikipédia est devenue la première porte d’accès au savoir pour les internautes. Wikipedia Collective Thinking


PBS American Experience 1964The year America lost it.Watch Now Masterpiece Downton Abbey Season 4, Episode 2Learn the fates of several characters as they converge at a glittering house party.Watch Now PBS Chasing ShackletonWatch as the team battles 800 miles across the roughest ocean on the planet.Watch Now NOVA Zeppelin Terror AttackDiscover how Germany’s Zeppelins rained fiery terror on London in World War I.Watch Now Nature The Private Life of DeerLearning about one of our closest neighbors: the white-tailed deer.Watch Now American Experience 1964The year America lost it.Watch Now Masterpiece Downton Abbey Season 4, Episode 2Learn the fates of several characters as they converge at a glittering house party.Watch Now
MIT Understanding Lasers and Fiberoptics full course by MIT Lasers are essential to an incredibly large number of applications. Today, they are used in bar code readers, compact discs, medicine, communications, sensors, materials processing, computer printers, data processing, 3D-imaging, spectroscopy, navigation, non-destructive testing, chemical processing, color copiers, laser "shows", and in the military. Education - YouTube EDU

Education - YouTube EDU

Releaselog | COCAIN has released the Unrated BDRip of film “Jackass Presents Bad Grandpa”. It is a 2013 American hidden camera comedy film directed by Jeff Tremaine and written by Tremaine, Spike Jonze and Johnny Knoxville. It is the fourth installment in the Jackass film series. The film stars Johnny Knoxville and Jackson Nicoll.

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The Most Amazing Feat of Self-Control Ever The Most Amazing Feat of Self-Control Ever In a life-or-death situation, human beings are capable of incredible feats of bravery and self-control . One of the most remarkable ever recorded was that of Leonid Rogozov, the medic at a Soviet Antarctic research station who was forced to remove his own appendix. I write about the incident at some length in ; to my delight, I've discovered that Rogozov's son has recently published a paper providing even more details on the case. The more I learn, the more incredible it seems. During the late ‘50s and early ‘60s, the Cold War took on new and more literal meaning as the United States and Russia expanded their rivalry into the heart of Antarctica.
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The Most Important Image Ever Taken