Uploaded February 2022 | Updated September 2026, 1 hour ago

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One of our KiwiCo boxes this month was this double pendulum project. The glow in the dark surface of the board is activated by the UV light at the end of the pendulum, leaving a trace of its path.

A full description of this motion and the reasons behind it can be found here...
en.wikipedia.org/wiki/Double_pendulum

Music: bensound.com/royalty-free-music