Imagining the 4th dimension

Ever since I was little, well fairly little, inspired by the writings of A.A. Attanasio, I have tried to imagine higher-dimensional shapes. Shapes like the lovely hypercube:



Dimensions is a lovely project which takes you through the maths of higher dimensional shapes, without overwhelming you with detail. It's all done through animation, and you can watch it online. Don't be a flatlander. JFDI!