At the Houston Museum of Natural Science they recently made a disturbing discovery: their Foucault pendulum had stopped ...

As a rule, Donald Saff doesn’t collect clocks he can’t see inside of. It’s the harmonic entanglement of gears—and the skill needed to craft them—that first lured him to horology, the study of ...

Newtonian, Lagrangian, and Hamiltonian approaches! 🕰️🔬 In this video, we explore the motion of a simple pendulum from three different perspectives: the Newtonian approach (using forces and ...

Once upon a time, you were probably on an elementary school field trip at a science museum or an observatory. Just before lunch, your teacher had the class stand in a circle around an enormous weight ...

In the 17th century, Christiaan Huygens, inventor of the pendulum clock, noticed a curious phenomenon. When two identical pendulum clocks are mounted next to each other on a wall, their swings ...

Nicholas Blackwell and his father went to a hardware store about three years ago seeking parts for a mystery device from the past. They carefully selected wood and other materials to assemble a ...

Rothman is managing editor at TIME. She was also the founding editor of TIME’s history section. We sometimes hear that time moves forward in one direction, like an arrow. History must too. Or perhaps ...

Forbes contributors publish independent expert analyses and insights. I cover travel trends and wellness and family travel. As a global traveler who loves and covers all things luxury, I’m always ...