Pendulum Wave

Serie:LabWissenschaft × Kunst • YouTube-Embed

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Several pendulums with slightly different lengths interfere: waves seem to travel, then suddenly reset together. I like the rhythm of beats and synchrony - an analog Lissajous in space. It’s a good reminder that coherence is often only temporary.

What you’re seeing

A pendulum-wave: many pendulums with slightly different lengths start in phase and drift, creating mesmerizing wave patterns.

How it works (in short)

Each length gives a slightly different period. As phases slip, constructive/destructive alignments produce traveling and beating patterns.

Setup and gear

Rigid top bar/frame with evenly spaced hang points
Strings and weights (pendulum bobs)
Measured lengths with small increments between pendulums

Safety notes

Secure the frame, keep clear of moving masses.
Use low-friction pivots for clean motion.