The New York Times' latest game, Pips, brings domino fun to your desktop. How to play Pips as well as hints in case you get ...

In a preprint paper, scientists concluded that the Step Pyramid of Djoser in Saqqara, Egypt—believed to be the oldest of the ...

The cutting of the Gordian Knot by Alexander became a metaphor for solving difficult problems by employing simple, drastic solutions.

If you correctly recall the elementary trick for order of operations, solving this problem should be a breeze.