Math An intellectually challenging game of loop

[Notebook]

http://www.bbc.co.uk/news/magazine-34015430


Its nice that it doesn't quite work, and

It is another Greek mathematician, Apollonius, who is credited with discovering that an ellipse is the shape you get if you cut through a cone at an angle - a shape like a circle but narrower around the middle and longer at the ends.

its probably his fault...

N.

 

[Quick_Nick]

There were a couple of Numberphile videos featuring it last month.