Jim Crutchfield, a former math teacher who coached tennis before getting his big break, is touted by Erik Spoelstra, Brad ...

Chinese researchers have developed the world's smallest and most robust atomic clock that can survive the rigors of war.

The serial entrepreneur is launching a new app that links your screen time to the number of steps you take in a day.

Although calendars have existed since the Bronze Age, time blocking, which assigns specific tasks to designated timeslots, is ...