This is pretty cool. Enjoy!

Envision the world in 11 dimensions: A TED-Ed lesson to blow your 3D mind

Posted by: Morton Bast
July 18, 2013

In our three-dimensional world, all we can experience is length, width and height. Unless one of your friends is a hypercube, it’s hard to imagine just what it would look like to live beyond the 3D. Would you like it? Would you understand it? Would you even believe it was real?

In this spunky TED-Ed lesson, Alex Rosenthal and George Zaidan lead us into a mathematical playland and test the very limits of our imagination. Inspired by Edwin Abbott’s 1884 novella, Flatland, they offer one way to conceive of a fourth, fifth or 11th dimension, and challenge us to open our eyes to a world outside what we’re built to perceive.

This is a cool lecture from Lawrence Krauss posted at Open Culture, via Richard Dawkins - the lecture is called Hiding in the Mirror: The Mysterious Allure of Extra Dimensions.

Lawrence Krauss on the Mysterious Allure of Extra Dimensions

in Physics | January 4th, 2012

In the world of everyday experience we perceive three dimensions of space. Through any point, no more than three perpendicular lines may pass. The notion that there might be more than three dimensions has traditionally been the domain of science fiction shows like The Twilight Zone.

In this engaging lecture (click image above to watch), theoretical physicist Lawrence Krauss explains the growing respectability of extra-dimensional theories in physics, tracing the evolution of the idea from Plato’s cave through Edwin A. Abbott’s Flatland, and from Einstein-Minkowski spacetime through Kaluza-Klein theory, on into modern-day string theory.

Titled “Hiding in the Mirror: The Mysterious Allure of Extra Dimensions,” Krauss’s presentation was given in September at a conference in Oslo, Norway, organized by the Fritt Ord Foundation. The speech lasts about an hour and is followed by a question-and-answer session.

via Richard Dawkins

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