Cesium clock | instrument | Britannica.com

In atomic clock. Until the 1990s the cesium beam atomic clock was the most accurate standard of atomic time and frequency. The principle underlying the cesium clock is that all atoms of cesium-133 are identical and, when they absorb or release energy, produce radiation of exactly the same frequency, which makes the…

Atomic clock | instrument | Britannica.com

Atomic clock, type of clock that uses certain resonance frequencies of atoms (usually cesium or rubidium) to keep time with extreme accuracy. The electronic components of atomic clocks are regulated by the frequency of the microwave electromagnetic radiation. …

Atomic clock - GIS Wiki | The GIS Encyclopedia

An atomic clock is a type of clock that uses an atomic resonance frequency standard as its timekeeping element. They are the most accurate time and frequency standards known, and are used as primary standards for international time distribution services, and to control the frequency of television broadcasts and GPS satellite signals.. Atomic clocks do not use radioactivity, but rather the ...

Atomic Clock - Encyclopaedia Metallum: The Metal Archives

Country of origin: United States Location: Spokane, Washington Status: Active Formed in: N/A Genre: Progressive Rock/Metal Lyrical themes: N/A Current label:

Atomic clock - Academic Kids

An atomic clock is a type of clock that uses an atomic resonance frequency standard as its counter. Early atomic clocks were masers with attached equipment. Today's best atomic frequency standards (or clocks) are based on more advanced physics involving cold atoms and atomic fountains.

What is an atomic clock and how does it work? | HowStuffWorks

An atomic clock is a clock that uses the resonance frequencies of atoms as its resonator. According to Encyclopedia Britannica, the resonator is "regulated by the frequency of the microwave electromagnetic radiation emitted or absorbed by the quantum transition (energy change) of an atom or molecule."

Talk:Atomic clock - Wikipedia

What you have is not an atomic clock, it is correctly called a "radio clock". It synchonizes by radio with an atomic clock located in a government laboratory. This article is about atomic clocks themselves. Try Talk:Radio clock. --Chetvorno TALK 03:00, 30 April 2013 (UTC) Mercury Atomic Clock Keeps Time with Record Accuracy

Time | The Canadian Encyclopedia

Jan 24, 2018· The official differences between UTC and the contributing clocks is published 30 days in arrears to help establish the independence of the more than 300 contributing atomic clocks. More than 30 of the more technically developed countries have an official time and frequency laboratory that operates these clocks, and some have more than one.

Atomic clock Facts for Kids - Kiddle encyclopedia

An atomic clock is a very good clock that works with atoms, as opposed to most other clocks which are mechanical. The frequency comes from the crossing radiation of electrons. Atomic clocks are currently the most exact clocks of the world. They are also called primary clocks.

Atomic Clock | Encyclopedia.com

atomic clock, electric or electronic timekeeping device that is controlled by atomic or molecular oscillations. A timekeeping device must contain or be connected to some apparatus that oscillates at a uniform rate to control the rate of movement of its hands or the rate of change of its digits.

List of atomic clocks - Wikipedia

22 · This article is an orphan, as no other articles link to it.Please introduce links to this page from ; …

Atomic clock | Article about atomic clock by The Free ...

atomic clock, electric or electronic timekeeping device that is controlled by atomic or molecular oscillations. A timekeeping device must contain or be connected to some apparatus that oscillates at a uniform rate to control the rate of movement of its hands or the rate of change of its digits.

atomic clock | Infoplease

atomic clock, electric or electronic timekeeping device that is controlled by atomic or molecular oscillations. A timekeeping device must contain or be connected to some apparatus that oscillates at a uniform rate to control the rate of movement of its hands or the rate of change of its digits ...

Time - Atomic time | Britannica.com

Time - Time - Atomic time: The German physicist Max Planck postulated in 1900 that the energy of an atomic oscillator is quantized; that is to say, it equals hν, where h is a constant (now called Planck's constant) and ν is the frequency. Einstein extended this concept in 1905, explaining that electromagnetic radiation is localized in packets, later referred to as photons, of frequency ν ...

Atomic oscillator | Article about Atomic oscillator by The ...

atomic clock, electric or electronic timekeeping device that is controlled by atomic or molecular oscillations. A timekeeping device must contain or be connected to some apparatus that oscillates at a uniform rate to control the rate of movement of its hands or the rate of change of its digits.

RP Photonics Encyclopedia - optical clocks, frequency ...

The RP Photonics Buyer's Guide contains 3 suppliers for optical clocks. Among them: Menlo Systems. Menlo Systems' offers complete laser system solutions for optical clocks. Our ORS Ultrastable Laser provides the highly stable optical reference for ultranarrow linewidths. The FC1500-ULN plus Optical Frequency Comb transfers the spectral purity of the optical clock to the RF domain and ...

Category:Clocks - Simple English Wikipedia, the free ...

Pages in category "Clocks" The following 22 pages are in this category, out of 22 total.

Atomic clock - Simple English Wikipedia, the free encyclopedia

An atomic clock is a clock that works with atoms, as opposed to most other clocks which are mechanical.The frequency comes from the crossing radiation of electrons.Atomic clocks are currently the most exact clocks of the world. They are also called primary clocks.. Most clocks know the time because they count how many times something moves back and forth.

Clock | Encyclopedia.com

CLOCK AND WATCH INDUSTRYCLOCK AND WATCH INDUSTRY. The history of American clock-and watchmaking is a microcosm of the early history of American manufacturing. It includes the story of a tremendously talented line of artisans and of the training that passed from one to the other.

* Atomic clock (GIS) - Definition,meaning - Online ...

Atomic clock failure, however, is a problem that has plagued these systems too. Last year, nine clocks across 18 Galileo satellites in orbit stopped working without warning. India, meanwhile, has reported the failure of seven of the 21 clocks it has in its constellation of navigation satellites.. atomic clock

Atomic clock - WikiMili, The Free Encyclopedia

An atomic clock is a clock device that uses a hyperfine transition frequency in the microwave, or electron transition frequency in the optical, or ultraviolet region of the electromagnetic spectrum of atoms as a frequency standard for its timekeeping element. Atomic clocks are the most accurate time

Atomic clock : Wikis (The Full Wiki)

The first accurate atomic clock, a caesium standard based on a certain transition of the caesium-133 atom, was built by Louis Essen in 1955 at the National Physical Laboratory in the UK. [3] Calibration of the caesium standard atomic clock was carried out by …

Atomic Clock (Zion I album) - Wikipedia

Atomic Clock is a studio album by Zion I. It was released by Gold Dust Media in 2010. It peaked at number 24 on the Billboard Heatseekers Albums chart, as …

Cesium clocks | Article about Cesium clocks by The Free ...

atomic clock, electric or electronic timekeeping device that is controlled by atomic or molecular oscillations. A timekeeping device must contain or be connected to some apparatus that oscillates at a uniform rate to control the rate of movement of its hands or the rate of change of its digits.

Atomic clock - Wikipedia, the free encyclopedia

An atomic clock is a type of clock that uses an atomic resonance frequency standard as its timekeeping element. They are the most accurate time and frequency standards known, and are used as primary standards for international time distribution services, and to control the frequency of television broadcasts and GPS satellite signals.. Atomic clocks do not use radioactivity, but rather the ...

Atomic clocks | Article about Atomic clocks by The Free ...

atomic clock, electric or electronic timekeeping device that is controlled by atomic or molecular oscillations. A timekeeping device must contain or be connected to some apparatus that oscillates at a uniform rate to control the rate of movement of its hands or the rate of change of its digits.

Atomic time | physics | Britannica.com

Atomic time, timescale generated by atomic clocks, which furnish time more accurately than was possible with previous astronomical means (measurements of the rotation of the Earth and its revolution about the Sun). International Atomic Time (TAI) is based on a system consisting of about 270

Atomic clock - Encyclopedia Britannica | Britannica.com

Atomic clock, type of clock that uses certain resonance frequencies of atoms (usually cesium or rubidium) to keep time with extreme accuracy. The electronic components of atomic clocks are regulated by the frequency of the microwave electromagnetic radiation. …

Atomic clock - definition of atomic clock by The Free ...

atomic clock n. An extremely precise timekeeping device regulated in correspondence with a characteristic invariant frequency of an atomic or molecular system. atomic clock n 1. (Atomic Physics) an extremely accurate clock in which an electrical oscillator is controlled by the natural vibrations of an atomic or molecular system such as caesium or ...

Atomic Clock (disambiguation) - Wikipedia

"Atomic Clock", a song by Mark Helias "Atomic Clock", a song by Monster Magnet from Powertrip; This disambiguation page lists articles associated with the title Atomic Clock. If an internal link led you here, you may wish to change the link to point directly to the ...