Activity

“Their research centers on topology, a branch of mathematics involving step-wise changes like making a series of holes in an object. The difficult-to-grasp concept was illustrated by Nobel Committee member Thors Hans Hansson at a news conference using a cinnamon bun, a bagel and a pretzel.”
http://www.buenosairesherald.com/article/222527/nobel-for-work-on-exotic-matter-explained-with-bagel