Well, it was a sunny day, my youngest son wanted to head to the beach to make sandcastles. Why not join in, I thought?
Tag: topology
Cut A Bagel Into Two Linked Halves
For those of you who don’t know what a bagel is, it’s a bun with a hole in the middle. A doughnut made out of bread dough. If you can’t get hold of a bagel for the puzzle on this page, use a doughnut instead.