Symmetrical pendulum system on an axle, for demonstrating centrifugal force. The pendulum arms are held in a state of rest by a coil spring. Depending on the rotational speed, they are lifted against the force of gravity as the axle turns.
This can then be used to control the speed of a steam engine.
![Watt’s Governor, 1009695 [U8403115], Rotational Motion](/imagelibrary/U8403115/U8403115_01_Watt-s-Governor.jpg)
![DC Power Supply 20 V, 5 A, 1003311 [U33020-115], Power Supplies](/thumblibrary/U33020-115/U33020-115_01_140_140_DC-Power-Supply-20-V-5-A.jpg)
![DC Power Supply 20 V, 5 A
(230 V, 50/60 Hz), 1003312 [U33020-230], Power Supplies](/thumblibrary/U33020-230/U33020-230_01_140_140_DC-Power-Supply-20-V-5-A-230-V-5060-Hz.jpg)
![Experiment Motor with Gearbox, 1021806 [U8558030], Rotational Motion Accessory](/thumblibrary/U8558030/U8558030_01_140_140_Experiment-Motor-with-Gearbox.jpg)
![Safety Experiment Leads, 75 cm, 2.5 mm², blue, red, (2 pcs), 1017718 [U13816], Experiment Leads and Cables](/thumblibrary/U13816/U13816_01_140_140_Safety-Experiment-Leads-75-cm-25-mm-blue-red-2-pcs.jpg)
![Tripod Stand 185 mm, 1002836 [U13271], Bases](/thumblibrary/U13271/U13271_01_140_140_Tripod-Stand-185-mm.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)
![Accessories for Spring Oscillations, 1000703 [U56003], Mechanical Waves](/thumblibrary/U56003/U56003_01_140_140_Accessories-for-Spring-Oscillations.jpg)
![Chaotic Pendulum E, 1017531 [U8557340], Oscillations](/thumblibrary/U8557340/U8557340_01_140_140_Chaotic-Pendulum-E.jpg)
![Wimshurst Machine, 1002967 [U15310], Electrostatics](/thumblibrary/U15310/U15310_01_140_140_Wimshurst-Machine.jpg)
![Precision Dynamometer 5 N, 1003106 [U20034], Dynamometers](/thumblibrary/U20034/U20034_01_140_140_Precision-Dynamometer-5-N.jpg)
![Resonance Wire, Ring Shaped, 1000707 [U56007], Mechanical Waves](/thumblibrary/U56007/U56007_01_140_140_Resonance-Wire-Ring-Shaped.jpg)
![Drop and Launch Apparatus, 1000588 [U119831], Oblique throw](/thumblibrary/U119831/U119831_01_140_140_Drop-and-Launch-Apparatus.jpg)
![Magnetic field line apparatus, Two-Dimensional, 1003092 [U19560], Magnetic Fields](/thumblibrary/U19560/U19560_01_140_140_Magnetic-field-line-apparatus-Two-Dimensional.jpg)
![Precision Dynamometer 2 N, 1003105 [U20033], Dynamometers](/thumblibrary/U20033/U20033_01_140_140_Precision-Dynamometer-2-N.jpg)
![Helical Spring Snakey, 1008687 [U30034], Mechanical Waves](/thumblibrary/U30034/U30034_01_140_140_Helical-Spring-Snakey.jpg)
![Set of 4 Pendulum Bobs, 1003230 [U30035], Oscillations](/thumblibrary/U30035/U30035_01_140_140_Set-of-4-Pendulum-Bobs.jpg)
![Spectrum Tube Power Supply (230V, 50/60 Hz), 1000684 [U418001-230], Spectrum Tubes and Spectrum Lamps](/thumblibrary/U418001-230/U418001-230_01_140_140_Spectrum-Tube-Power-Supply-230V-5060-Hz.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)
![Cast Iron Bolts, Set of 10 Bolts, 1000827 [U8442110], Thermal Expansion](/thumblibrary/U8442110/U8442110_01_140_140_Cast-Iron-Bolts-Set-of-10-Bolts.jpg)
![Microwave Set 9.4 GHz (230 V, 50/60 Hz), 1009951 [U8493600-230], Wave Optics](/thumblibrary/U8493600-230/U8493600-230_01_140_140_Microwave-Set-94-GHz-230-V-5060-Hz.jpg)
![Kolbe's Electroscope, 1001027 [U8532131], Electrostatics](/thumblibrary/U8532131/U8532131_01_140_140_Kolbes-Electroscope.jpg)
![Digital Counter (230 V, 50/60 Hz), 1001033 [U8533341-230], Digital Counters](/thumblibrary/U8533341-230/U8533341-230_01_140_140_Digital-Counter-230-V-5060-Hz.jpg)
![Accessories for Rope Waves, 1008540 [U85560081], Mechanical Waves](/thumblibrary/U85560081/U85560081_01_140_140_Accessories-for-Rope-Waves.jpg)