For decades, physicists have argued about Feynman’s Sprinkler Problem, the question of how a reverse sprinkler would operate.

If you have been every stuck in a rut, trying to solve a persistent problem, where every traditional brainstorming session leaves you with the same uninspired ideas. You might be interested in a new ...

Physicists have debated which way a submerged sprinkler sucking in water would spin. Careful experiments provide an answer.

Fathoming fluid flow Flows of water coming into a reverse sprinkler, visualized using particles and false-coloured. (Courtesy: NYU's Applied Mathematics Laboratory) New insights into the “reverse ...

Yesterday we reported problems using "reverse look-ups" (searching by phone number) in Apple's Address Book. Several readers have now noted that if you type in a number to search, Address Book will ...

The holiday shopping season is in full swing, with Christmas just 19 days away. All that shopping also means that retailers will deal with returned merchandise. This is part one of a two-part story on ...