Concave transparent acrylic body with spherical curvature. A rolling ball oscillates
inside the concavity about its rest position like a mathematical pendulum does.
The radius of curvature is equivalent to the length of a normal pendulum.
Includes three steel balls.
Specifications:
Diameter of balls: 16 mm
Radius of curvature: 200 mm
Diameter: 140 mm
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for generating acoustically excited Chladni figures, 1000706 [U56006], Oscillations](/thumblibrary/U56006/U56006_01_140_140_Chladni-Plate-Square-for-generating-acoustically-excited-Chladni-figures.jpg)
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