Discovery Channel | Scientists have transformed the way we think and live throughout the centuries. What are the most important scientific discoveries of all time? In no particular order, we present the top 100 in eight different categories. (

Welcome to the 11th Dimension - The Elegant Universe - PBS NOVA

Part 3 of "The Elegant Universe" with host Brian Greene shows how Edward Witten of Princeton's Institute for Advanced Study, aided by others, revolutionized string theory by successfully uniting the five different versions into a single theory that is cryptically named "M-theory," a development that requires a total of eleven dimensions.

Amazing documentary hosted by Stephen Hawking asking the key question so many people have wondered since the beginning of mankind, does a "god" or a "celestial dictator" exist??

Beneath the surface of the world are the rules of science. But beneath them there is the far deeper set of rules. A matrix of pure mathematics which explains the nature of the rules of science and how it is that we can understand them in the first place.

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