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.
![Rolling Pendulum -
a simple mathematical pendulum, 1017332 [U8498293], Oscillations](/imagelibrary/U8498293/U8498293_01_Rolling-Pendulum-a-simple-mathematical-pendulum.jpg)
![Oersted's Device, 1009710 [U29310], Magnetism](/thumblibrary/U29310/U29310_01_140_140_Oersteds-Device.jpg)
![Set of 4 Pendulum Bobs, 1003230 [U30035], Oscillations](/thumblibrary/U30035/U30035_01_140_140_Set-of-4-Pendulum-Bobs.jpg)
![Helmholtz Resonator d = 70 mm, 1003520 [U8430310], Sound](/thumblibrary/U8430310/U8430310_01_140_140_Helmholtz-Resonator-d-70-mm.jpg)
![Force on a Conductor in a Magnetic Field, 1003251 [U30065], Magnetic Fields](/thumblibrary/U30065/U30065_01_140_140_Force-on-a-Conductor-in-a-Magnetic-Field.jpg)
![Lenz's Law Apparatus, 1009959 [U8556012], Induction](/thumblibrary/U8556012/U8556012_01_140_140_Lenzs-Law-Apparatus.jpg)
![Set of 6 Steel Balls -
for elastic and inelastic collision experiments, 1002939 [U15014], Linear Motion](/thumblibrary/U15014/U15014_01_140_140_Set-of-6-Steel-Balls-for-elastic-and-inelastic-collision-experiments.jpg)
![Thermal Conductivity Equipment Kit, 1003497 [U45055], Heat Conduction](/thumblibrary/U45055/U45055_01_140_140_Thermal-Conductivity-Equipment-Kit.jpg)
![Vibration generator -
for investigating oscillations and resonances, 1000701 [U56001], Oscillations](/thumblibrary/U56001/U56001_01_140_140_Vibration-generator-for-investigating-oscillations-and-resonances.jpg)
![Rubber Band, 1000702 [U56002], Mechanical Waves](/thumblibrary/U56002/U56002_01_140_140_Rubber-Band.jpg)
![Chladni plate, circular -
for generating acoustically excited Chladni figures, 1000705 [U56005], Oscillations](/thumblibrary/U56005/U56005_01_140_140_Chladni-plate-circular-for-generating-acoustically-excited-Chladni-figures.jpg)
![Chladni Plate, Square -
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)
![Blue Food Colouring, 1000793 [U8410620], Consumables](/thumblibrary/U8410620/U8410620_01_140_140_Blue-Food-Colouring.jpg)
![Helmholtz Resonator d = 52 mm, 1003521 [U8430320], Sound](/thumblibrary/U8430320/U8430320_01_140_140_Helmholtz-Resonator-d-52-mm.jpg)
![Helmholtz Resonator d = 40 mm, 1003522 [U8430330], Sound](/thumblibrary/U8430330/U8430330_01_140_140_Helmholtz-Resonator-d-40-mm.jpg)
![Helmholtz Resonator d = 34 mm, 1003523 [U8430340], Sound](/thumblibrary/U8430340/U8430340_01_140_140_Helmholtz-Resonator-d-34-mm.jpg)
![Induction Tube Apparatus with 6 Coils, 1001005 [U8511200], Induction](/thumblibrary/U8511200/U8511200_01_140_140_Induction-Tube-Apparatus-with-6-Coils.jpg)
![Stainless Steel Rod 1000 mm, 1002936 [U15004], Rods](/thumblibrary/U15004/U15004_01_140_140_Stainless-Steel-Rod-1000-mm.jpg)
![Magnetic field line apparatus, Two-Dimensional, 1003092 [U19560], Magnetic Fields](/thumblibrary/U19560/U19560_01_140_140_Magnetic-field-line-apparatus-Two-Dimensional.jpg)
![Accessories for Spring Oscillations, 1000703 [U56003], Mechanical Waves](/thumblibrary/U56003/U56003_01_140_140_Accessories-for-Spring-Oscillations.jpg)
![Lamp Socket E10 on Acrylic Base, 1000946 [U8495310], Circuits](/thumblibrary/U8495310/U8495310_01_140_140_Lamp-Socket-E10-on-Acrylic-Base.jpg)