Measured against that, the Kakeya conjecture – a problem stemming from a 1917 thought experiment by Japanese mathematician ...

It’s not a random choice, and in fact, the history of ice cubes is a lot (ahem) cooler than you probably think.

Burnt pans can be a real pain to clean. If you're in a pinch, you can use this common staple sweetener to rid your pan of its burnt-on gunk.