More than 2,000 years ago, Greek artisans built a compact machine of interlocking gears that could track the heavens with a ...

A detailed look at tackling a clever sphere-based pyramid puzzle, highlighting its design, the problem-solving process, and ...

In order to unlock self-reflection you need to have picked up a specific collectible: Case File: Mirror Supplement. Here's where it is. In the security, sector follow the signs and head through the ...

The New York Times looks for intelligent, literate, entertaining and well-crafted crosswords that appeal to the broad range of Times solvers. Submissions are now open on our submission platform, ...