Some say the reason most manhole covers are round is that a circle cannot fall through a smaller circular hole. Which of ...

CNET's Gael Cooper has loads of tips and tricks to tackle each NY Times Wordle puzzle but if you've been playing the game ...

There is no new Insights puzzle this month, but I come bearing a holiday gift — a special crossword puzzle for all readers of Quanta Magazine. This crossword is my homage to the wonderful writers and ...