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Pendulum

Ratios · 30 levels

Swing two brass pendulums to draw the framed figure.

How to play

1. Pendulum a swings the pen left–right, pendulum b up–down. Set their speeds and the phase (how far a starts ahead), then pull Release.
2. Only the ratio counts: 4 : 6 draws the same figure as 2 : 3. The pen touches the top edge b times and the side a times.
3. Draw the figure in the gilded frame. You hear the two pendulums as two notes in the same ratio.

Count the bumps along the top and the side of the target first. Later a pendulum jams, so you need an equal ratio in other numbers, and paper runs short.

Open Pendulum

Teeter, Tint and Echo Heist are free starters. Other games unlock through earned game choices or permanent packs. Your progress stays in the browser; optional sign-in saves it to your website account.