What would life be like with just two (or four) dimensions? More on extra dimensions with Ed Copeland... http://youtu.be/75p6_pQ3jBo Flatland: A Romance of Many Dimensions by Edwin Abbott. The Planiverse by A. K. Dewdney Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://bit.ly/bradychannels