You're a supervisor, and your crew is on a job where they need two 12-foot ladders, but all you have are two 10-foot ladders. Bill says he can step up beyond the red line on his ladder. In fact, he ...

What shapes does a ladder make as it falls away from a wall? Oxford University wants to know. The solution may remind you of another puzzling math thought experiment. Related tools include a drawing ...

Getting accepted into Oxford University is a famously competitive process: Only 3,300 candidates <a href="https://www.ox.ac.uk/sites/files/oxford/Admissions%20Report ...