Time Signals Time Signals (1973)
3 tripods, 3 pendulums, 3 solenoids, 300cm high

The three pendulums are adjusted to swing in periods in the relationship 7:11:13 whereby the fastest pendulum makes one complete oscillation every 4 seconds. Each pendulum emits a loud click as it passes through the vertical from left to right, resulting in a slowly-changing rhythm which repeats after 4004 seconds (7 x 11 x 13 x 4)

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