Definition, Betydelse & Anagram | Engelska ordet PENDULUM

Definition av PENDULUM

1. (fysik) pendel

Exempel på hur man kan använda PENDULUM i en mening

• Examples include the mathematical models that describe the swinging of a clock pendulum, the flow of water in a pipe, the random motion of particles in the air, and the number of fish each springtime in a lake.
• The advantage of a pendulum for timekeeping is that it is an approximate harmonic oscillator: It swings back and forth in a precise time interval dependent on its length, and resists swinging at other rates.
• Walking is defined as an "inverted pendulum" gait in which the body vaults over the stiff limb or limbs with each step.
• The period depends on the length of the pendulum and also to a slight degree on the amplitude, the width of the pendulum's swing.
• 1583 – Galileo Galilei deduces the period relationship of a pendulum from observations (according to later biographer).
• In physics and mathematics, in the area of dynamical systems, a double pendulum also known as a chaotic pendulum is a pendulum with another pendulum attached to its end, forming a simple physical system that exhibits rich dynamic behavior with a strong sensitivity to initial conditions.
• If a long and heavy pendulum suspended from the high roof above a circular area is monitored over an extended period of time, its plane of oscillation appears to change spontaneously as the Earth makes its 24-hourly rotation.
• Its advantage is that, unlike previous pendulum gravimeters, the pendulum's centre of gravity and center of oscillation do not have to be determined, allowing a greater accuracy.
• Metronomes may also include synchronized visual motion, such as a swinging pendulum or a blinking light.
• A gridiron pendulum was a temperature-compensated clock pendulum invented by British clockmaker John Harrison around 1726.
• The tautochrone problem was studied by Huygens more closely when it was realized that a pendulum, which follows a circular path, was not isochronous and thus his pendulum clock would keep different time depending on how far the pendulum swung.
• Instead of merely noting, or recording, the absolute motions of a pendulum, the displacements were plotted on a moving graph, driven by a clock mechanism.
• It was first described by the French astronomer Nicolas-Louis de Lacaille in 1756 and visualized by him as a clock with a pendulum and a second hand.
• Foucault achieved the demonstration by showing the rotation of the plane of oscillation of a long and heavy pendulum suspended from the roof of the Panthéon, Paris.
• A pendulum suspended from a high-quality bearing, oscillating in air, has a high , while a pendulum immersed in oil has a low one.
• Whereas a normal pendulum is stable when hanging downward, an inverted pendulum is inherently unstable, and must be actively balanced in order to remain upright; this can be done either by applying a torque at the pivot point, by moving the pivot point horizontally as part of a feedback system, changing the rate of rotation of a mass mounted on the pendulum on an axis parallel to the pivot axis and thereby generating a net torque on the pendulum, or by oscillating the pivot point vertically.
• Fenn Tower housed what was the world's longest Foucault pendulum, but the pendulum was removed during the residence hall renovation in 2006 and is now in the Cleveland State University archives.
• At the beginning of 1680, he presented a paper to the Royal Society in which he attempted to deprive Christiaan Huygens of the honour of applying the pendulum to the measurement of time.
• From December 1840 to March 1841, he employed hundreds of native Hawaiian porters and many of his men to haul a pendulum to the summit of Mauna Loa to measure gravity.
• On 6 April 2010, the cable suspending the original pendulum bob snapped causing irreparable damage to the pendulum and to the marble flooring of the museum.

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