Double pendulums can demonstrate chaotic motion resulting from a relatively simple system. Try changing the parameters below to see what factors determine stability. In the visualization, the size of the bob represents its mass and the lengths are drawn to scale.

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Parameters

Try changing the parameters below to see different results! If your computer is powerful, try decreasing frames between rerenders for a smoother animation.

Gravity:

Top pendulum's mass:

Bottom pendulum's mass:

Top pendulum's length:

Bottom pendulum's length:

Top pendulum's starting angle (in multiples of pi):

Bottom' pendulum's starting angle (in multiples of pi):

Frames between rerenders:

See the results!

Site information

This site was made in April 2021 by Christian Bernier. Feel free to check out the source code. If you have any questions or recommendations, free free to contact me.