A basic pendulum is a mass at the end of a string that swings back and forth. It seems simple, and it appears in most introductory physics textbooks. But it's not a trivial problem to solve for the ...

PROF. GREENHILL gives currency to quite an erroneous idea, in last week's NATURE (p. 50). He says “in the Foucault experiment of the pendulum which shows the rotation of the earth, the slightest ...

We have a beautiful theory that puts each of nature’s forces into a single, neat package. The whole of it can be summed up in a single line of very compact—and for most, including me, incomprehensible ...

Happy birthday, Jean Bernard Leon Foucault, and thanks for the pendulum. The French physicist and inventor was born in Paris on this day in 1819. It may be hard to fathom, but the idea of Earth ...

A physical pendulum undergoes simple harmonic motion when displaced by a small angle. The oscillations are no longer simple harmonic motion when it is released from a large angle. The pendulum's pivot ...