The Sand Foucault Pendulum — a metal bob oscillating above a basin of fine sand, on an ABS body. Dimensions: 39 × 16 × 14 cm. Traces complex and unique patterns with each oscillation — variable curve, amplitude, speed, and direction of rotation. An exceptional decorative object at the crossroads of science and art.
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Unique patterns with each oscillationThe pendulum traces complex curves in the sand — each figure differs according to the amplitude, speed, and direction of rotation. No two patterns repeat exactly.
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Infinite variablesPlay with the shape of the curve, the amplitude, the speed, and the direction of rotation — the possibilities for geometric figures are literally endless.
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ABS body + metal pendulumSturdy and lightweight ABS structure with a metal pendulum for optimal inertia and smooth, prolonged oscillation.
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39 × 16 × 14 cmImposing dimensions that make it a centerpiece of home decor — it captures the eye and sparks admiration in any space.
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Art and science combinedThe Foucault pendulum is one of the most poetic scientific instruments — it transforms the physics of motion into ephemeral drawings in the sand.
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Exceptional giftFor lovers of science, art, and design who appreciate the blend of aesthetics and knowledge — an object unlike any other.
Sand Foucault Pendulum — ABS · metal · fine sand · 39 × 16 × 14 cm · infinite patterns
Launch the pendulum. It swings over the basin of fine sand, and its tip begins to trace. First a line. Then the trajectory widens, curves, drawing an ellipse, a star, a spiral. Geometric figures appear gradually, with mathematical precision and unexpected beauty. Modify the amplitude, change the direction, vary the speed — and watch the physics of motion transform into ephemeral art with each swing. It is the principle of the Foucault pendulum, made visible and tangible on your desk.
| Materials |
ABS (body) + Metal (pendulum) + Fine sand |
| Dimensions |
39 × 16 × 14 cm |
| Principle |
Foucault pendulum — tracing patterns in the sand |
| Variables |
Curve · amplitude · speed · direction of rotation |
| Power source |
None — mechanical energy of the pendulum |
| Usage |
Decoration · scientific demonstration · gift |
For more complex patterns: start the pendulum with a slight twist (elliptical motion rather than linear) — the resulting figures will be Lissajous curves with remarkable geometric shapes. The greater the initial amplitude, the more extensive and complex the figures will be. Smooth the sand regularly between sessions to return to a blank surface.
The decorative object for curious minds: ABS + metal + sand, 39 × 16 × 14 cm, infinite geometric patterns. An exceptional gift for a birthday, Christmas, office gift, or teacher gift — for any fan of science, kinetic art, and unique design.
Frequently Asked Questions
How does the Sand Foucault Pendulum work?
The metal pendulum is suspended above a basin of fine sand. Once set in motion, it swings freely and its tip traces patterns in the sand depending on its trajectory. By modifying the amplitude, speed, or direction of rotation at the start, you obtain different geometric figures — ellipses, stars, spirals.
Are the patterns always the same?
No — each oscillation produces different patterns based on the launch parameters (amplitude, speed, direction, angle). The combinations are practically endless. Simply smooth the sand and launch the pendulum differently to get an entirely new figure.
Does it require a power supply?
No — the pendulum runs solely on the mechanical energy transmitted during the launch. No batteries, no cables. The oscillation naturally lasts for several minutes depending on the initial amplitude, after which the pendulum comes to a stop through natural damping.
Can the sand be refilled or replaced?
Yes — the sand basin can be filled with any replacement fine sand if needed. Dry, fine, and evenly-sized sand will yield the best results for sharp, precise patterns.
