In the early 1970s, astronauts drove a lunar rover — a dune buggy, of sorts — bouncing around on the moon on short treks. It holds an interest for Stephen Montgomery-Smith, a math professor at the ...

Imagine you’re a character in a math problem. You have three platters, but two cakes. All three platters need to have the same amount of cake. How would you split it? Without even saying the word ...