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 ...

The first Foucault’s pendulum I ever saw was at the Franklin Institute in Philadelphia, the city where I was born. The pendulum hung in a stairwell. Its wire was attached to the ceiling four stories ...

Because a pendulum's oscillation frequency depends on its length, not its mass, you can use different colored bowling balls for a pretty effect. By Francie Diep Published Sep 8, 2014 7:20 PM EDT Get ...

Foucault pendulums are a popular feature in science museums around the world. This one hangs out in the National Museum of Science and Technology in Milan, Italy. Photo: sylvar/Flickr __1851: __ Léon ...

A Foucault pendulum, or Foucault's pendulum, named after the French physicist Leon Foucault, was conceived as an experiment to demonstrate the rotation of the Earth; its action is a result of the ...

“The only skyscraping girls’ school in the world” is small (600 students) Mundelein College, which is lodged near Lake Michigan in a 15-story building on Chicago’s North Side. A popular teacher of ...