“Foucault pendulum”的概念、定义、翻译、参考文献-科学参考

Foucault pendulum

Physics

A simple pendulum in which a heavy bob attached to a long wire is free to swing in any direction. As a result of the earth’s rotation, the plane of the pendulum’s swing slowly turns (at the poles of the earth it makes one complete revolution in 24 hours). It was devised by the French physicist Jean Bernard Léon Foucault (1819–68) in 1851, when it was used to demonstrate the earth’s rotation.

Mathematics

A pendulum consisting of a heavy bob suspended by a long inextensible string from a fixed point, free to swing in any direction, designed to demonstrate the rotation of the Earth. The original experiment, in 1851, was conducted by the French physicist Jean‐Bernard‐Léon Foucault. If the experiment were set up at the north or south pole, the vertical plane of the swinging bob would appear to an observer fixed on the Earth to precess or rotate once a day. At a location of latitude λ‎ in the northern hemisphere, the vertical plane of the swinging bob would precess in a clockwise direction with an angular speed of ω‎ sin λ‎, where ω‎ = 7.29×10⁻⁵ rad s⁻¹, the angular speed of rotation of the Earth. The period of precession in Oxford, for example, would be about $30 \frac{1}{2}$ hours.

单词	Foucault pendulum
释义	Foucault pendulum Physics A simple pendulum in which a heavy bob attached to a long wire is free to swing in any direction. As a result of the earth’s rotation, the plane of the pendulum’s swing slowly turns (at the poles of the earth it makes one complete revolution in 24 hours). It was devised by the French physicist Jean Bernard Léon Foucault (1819–68) in 1851, when it was used to demonstrate the earth’s rotation. Mathematics A pendulum consisting of a heavy bob suspended by a long inextensible string from a fixed point, free to swing in any direction, designed to demonstrate the rotation of the Earth. The original experiment, in 1851, was conducted by the French physicist Jean‐Bernard‐Léon Foucault. If the experiment were set up at the north or south pole, the vertical plane of the swinging bob would appear to an observer fixed on the Earth to precess or rotate once a day. At a location of latitude λ‎ in the northern hemisphere, the vertical plane of the swinging bob would precess in a clockwise direction with an angular speed of ω‎ sin λ‎, where ω‎ = 7.29×10⁻⁵ rad s⁻¹, the angular speed of rotation of the Earth. The period of precession in Oxford, for example, would be about $30 \frac{1}{2}$ hours.
随便看	primary wave primary winding primase primate city Primates prime prime decomposition prime element prime focus prime ideal prime implicant prime knot prime matter prime meridian prime mover prime number theorem prime rate prime subfield prime vertical priming primitive primitive circle primitive element primitive node primitive(nth root of unity)