I TRUST I may be pardoned for observing, in reference to Prof. A. M. Mayer's description of the curves produced by Blackburn's Double Pendulum (NATURE, vol. xviii. p. 594), that a typical series of ...

EXPERIMENT 7.—Let us return to our sand-pendulum. We have examined the vibrations of a single pendulum, let us now examine the vibrations of a double pendulum, giving two vibrations at once. The ...

If you’ve never seen a double pendulum before, it’s basically just a pendulum with another pendulum attached to the end. You might not think that’s anything special, but these devices can exhibit ...

This chaotic-looking "double pendulum" follows a large number of rules that govern its motion. Researchers have trained AI to take data from its movements to uncover simple equations that successfully ...