Serpentine Pendulum
Mechanics in Motion · Interactive
- DimensionsSubject to on-site plan
- PresentationInteractive
- PricingQuoted by manufacture spec
Purpose & Scientific Principle
The law of isochrony of a simple pendulum is the first dynamic law discovered by mankind. The exhibition item demonstrates the periodic change relationship of the pendulum through the swing of a simple pendulum with different pendulum lengths.
How to Operate
In 1595, Galileo Galilei discovered a pattern of object swings from the back and forth swing of the chandelier in the Pisa church. He discovered that when a long rope hangs a heavy object and swings freely at a small angle, the period (the time it takes to swing once) has nothing to do with the amplitude of the swing or the mass of the object, and is inversely proportional to the square root of the length of the pendulum. The greater the gravity, the faster the swing. A swing system that obeys this law is called a "simple pendulum."
The exhibition item extends Galileo's isochronic principle of a simple pendulum and designs pendulum balls of different lengths. The length of the cycloid increases from left to right. When each pendulum ball is swung at the same time, the swing frequency of each pendulum ball will decrease in sequence, and each pendulum ball will swing in sequence, forming a harmonious pattern change.
A pendulum is a device that can produce reciprocating swings. One end of a weightless thin rod or an inextensible thin flexible rope is suspended at a certain point in the gravity field, and a heavy ball is fixed at the other end to form a pendulum. If the ball is limited to swinging in the vertical plane, it is a planar pendulum. If the ball is not limited to the vertical plane, it is a spherical pendulum. The approximate periodic formula of the pendulum motion is: T=2π√(L/g). Among them, L is the pendulum length, and g is the local gravity acceleration. The exhibits are equipped with pendulums of different lengths. Due to the different pendulum lengths and different periods, an S-shaped serpentine curve is ultimately formed.
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