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Khan Academy
Khan Academy: How I Got My Job and Where I'm Going
Sarah talks about the evolution of her career from servings as an AmeriCorps member to a consultant to an administrator within a large hospital system in New York. [13:53]
Science Friday Initiative
Science Friday: What Does '4 G' Really Mean, Anyway?
LTE, WiMax and HSPA+ networks are all being marketed as '4G' networks -- but how do they measure up?