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Heart Disease and Stroke : Stenosis, ischemia and heart failure

By: Sal Khan

Clarifying a bunch of medical terms around heart disease

Videos about medicine and the healthcare system

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Price elasticity : Perfect Inelasticity and Perfect Elasticity of ...

By: Sal Khan

Extreme examples of price elasticity of demand

Price elasticity of demand and supply. How sensitive are things to change in price.

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Parabolas : Focus and Directrix of a Parabola 2

By: Sal Khan

Finding the focus and directrix of a parabola

Identifying and graphing circles, ellipses, parabolas, and hyperbolas.

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Graphing functions : Ex 2: Graphing a basic function

By: Sal Khan, Monterey Institute for Technology and Education

Graphing a Basic Function

Identifying, solving, and graphing various types of functions.

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TEDtalks Conference, Nairobi : Munir Virani: Why I love vultures

By: Munir Virani

The two annual TED conferences, in Long Beach/Palm Springs and Edinburgh, Scotland, bring together the world's most fascinating thinkers and doers, who are challenged to give the talk of their lives (in 18 minutes or less). TED Talks began as a simple attempt to share what happens at TED with the world. Under the moniker ideas worth spreading, talks were released online. They rapidly attracted a global audience in the millions. Indeed, the reaction was so enthusiastic th...

TED is a nonprofit devoted to Ideas Worth Spreading. It started out (in 1984) as a conference bringing together people from three worlds: Technology, Entertainment, Design. Since then its scope has become ever broader. Along with two annual conferences -- the TED Conference in Long Beach and Palm Springs each spring, and the TEDGlobal conference in Edinburgh UK each summer -- TED includes the award-winning TED Talks video site, the Open Translation Project and TED Conver...

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