If you thought writing calculations to describe three-dimensional objects in math class was hard, consider doing the same for one with 248 dimensions. Mathematicians call such an object E8 (pronounced ...

The human visual system exhibits a remarkable ability to decipher the three-dimensional structure of the world from two-dimensional retinal images. Central to this process is the utilisation of shape ...

Symmetry in the man-made world. Diane Louise Jordan has three sessions on observing shapes in the world around us. BBC School ...

To most people, “symmetry” means the bilateral symmetry exhibited by, say, a butterfly, or the human face. That is, if you take a picture of a butterfly and draw a straight line down the middle of the ...