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Oxidation reduction : Introduction to Oxidation States

By: Sal Khan

Oxidation and reduction. Oxidation states.

Videos on chemistry (roughly covering a first-year high school or college course).

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Interest rate swaps : Interest Rate Swap 1

By: Sal Khan

The basic dynamic of an interest rate swap

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Art History: Pisa : Nicola and Giovanni Pisano

By: Beth Harris, Steven Zucker

Nicola Pisano, Pulpit, Pisa Baptistery, 1260 Giovanni Pisano, Slaughter of the Innocents, Marble, 1301, Sant'Andrea church, Pistoia Speakers: Dr. David Drogin, Dr. Beth Harris

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TEDtalks Entertainment Gathering 2008 : Adam Savage: My obsession ...

By: Adam Savage

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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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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