Find a string. Really. Do it. Now twist, tie and tangle it as much as you like. Finally, attach the two loose ends of your string together to make a closed loop. (This is a crucial step.) What you ...

Knot theory began as an attempt to understand the fundamental makeup of the universe. In 1867, when scientists were eagerly trying to figure out what could possibly account for all the different kinds ...

There’s plenty of advice out there for aspiring negotiators, but none of it holds much resonance for the underdog. Harvard scholars will tell you to “control your emotions” and not appear anxious to ...