This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American On this very special Valentine’s Day episode ...

In the 1930s and 1940s, for example, a group of Polish mathematicians regularly met in a café in Lwów, Poland (now Lviv, ...

For those unaware of this neat little mathematical curiosity, the "wobbly table theorem" is kind of an application of the broader intermediate value theorem, a corollary of which basically says that ...