Two mathematicians have proved that a straightforward question — how hard is it to untie a knot? — has a complicated answer.

Cracker Barrel now expects fewer diners in the months ahead, and the stock is plunging Army veteran who burned American flag ...

Despite being one of the most familiar substances on Earth, water holds many secrets that scientists are still working to ...

One of the best cardio workouts you can do at home uses plyometric moves, such as mountain climbers, squat jumps, and high knees. Plyometric exercises involve brief, intense bursts of movement. These ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...