The matrix

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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
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

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