Mathematical Atlas: A gateway to Mathematics. Welcome!
This is a collection of short articles designed to provide an introduction to the areas of modern mathematics and pointers to further information, as well as answers to some common (or not!) Questions. The Tesseract. Numberphile - Videos about Numbers and Stuff. Imaging maths - Inside the Klein bottle. September 2003 My first practical experience with a Klein bottle was a failure.
When I was still at school I came across a picture of a Klein bottle in a weekly journal. I shared my fascination with a friend who was a glassmaker specializing in physics equipment for schools. A few days later I was a proud owner of a physical Klein bottle, made of glass. What to do with such a bottle? - StumbleUpon. Perfect numbers.