A Möbius band (or strip) is an intriguing surface with only one side and one edge. You can make one by joining the two ends of a long strip of paper after giving one end a 180-degree twist. An ant can ...

A Möbius band is a two-dimensional surface with the puzzling property of having only one side. Despite this mind-bending characteristic, it’s an easy object to make: just take a long strip of paper, ...

Editor’s Note: Published in 1957, this article comes from Martin Gardner’s legendary Scientific American column Mathematical Games. Read more in our special digital issue, Fun and Games. As many ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American If you hang around with mathematicians or go ...