Opinion

Foucault's Pendulum

The narrator observed a pendulum in the choir, understanding its isochronal motion was governed by the wire's length and π. A magnetic device beneath the floor ensured its perpetual oscillation by ...
[Stephen Hobley] has been experimenting with an electromagnetic pendulum in order to build himself a clock. Through the course of his experiments, he has learned quite a bit about how pendulums ...
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 ...
Reaction wheels are useful things, typically used by satellites to keep themselves oriented the right way up in space. Turning the reaction wheel creates an equal and opposite torque in the spacecraft ...
During Foucalt’s life it was already proven that the Earth rotated, thanks to experiments which showed that weights dropped from tall towers fell slightly to one side rather than straight down. This ...