PAROLE IN INGLESE ASSOCIATE CON «CAESIUM CLOCK»
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10 LIBRI IN INGLESE ASSOCIATI CON «CAESIUM CLOCK»
Scopri l'uso di
caesium clock nella seguente selezione bibliografica. Libri associati con
caesium clock e piccoli estratti per contestualizzare il loro uso nella letteratura.
1
Planning and Architectural Design of Integrated Services ...
If quartz oscillators are used then the drift will not affect service to WIS users and
the WIS users requirements will be satisfied. For reliability reasons (the MTBF of
a caesium clock is about 3 years), several caesium clocks must be used, either ...
A. Nejat Ince, Dag Wilhelmsen, Bülent Sankur, 1995
2
Springer Handbook of Atomic, Molecular, and Optical Physics
In contrast, standards similar to the caesium clock have a frequency (or other
property) that is determined by a certain natural constant which is not flexible,
being of pure quantum origin. It may change only if the fundamental constants
are ...
At the moment Essen and Parry are engaged on a comparison between their
caesium clock and the ephemeris time measured at the U S Naval Observatory.
Hitherto, the measurements of the variations in the Earth's rotation have involved
...
4
Lasers and Optoelectronics: Fundamentals, Devices and ...
An optical clock is predicted to replace the caesium clock as the fundamental
timing reference in the not-too-distant future. Optical clockwork phase coherently
relates a high optical frequency standard (typically in the range of hundreds of ...
5
A Dictionary of Science
Examples ofcompounds with this structure are CsCl, CsBr, CsI, CsCN, CuZn, and
NH4Cl. caesium clock An *atomic clock that depends on the energy difference
between two states of the caesium-133 nucleus when it is in a magnetic field.
John Daintith, Elizabeth A. Martin, 2010
6
The Science of Actuality
A caesium clock depends for its constancy of rate on the energy difference of two
states of the atom for the measurement of time intervals. lf the states are changed
by a change of energy, naturally it will not keep the same time. Just because ...
7
Splitting The Second: The Story of Atomic Time
The caesium fountain We have already met Jerrold Zacharias, the MIT physicist
who astonished the world by designing a commercial caesium clock which was
on the market little more than a year after the NPL machine started working.
8
Seven Wonders of the Cosmos
The present definition of Universal Time (UT) is in terms of the idealized caesium
clock. This clock depends on the oscillations of the caesium atom. In practice the
second is defined as the duration of 9 192 631 770 periods of the radiation ...
Jayant Vishnu Narlikar, 1999
9
The Measurement of Time: Time, Frequency and the Atomic
Clock
As an example, in a caesium clock, the relative change in the transition frequency
is close to 3 x 10- when 6 Bo/ Bo * 10-4. Differential attenuation factors between
104 and 105 are commonly achieved in the hydrogen maser and caesium clock ...
Claude Audoin, Bernard Guinot, 2001
10
Biographical Dictionary of the History of Technology
His expertise in these fields was to play a crucial role in the development of the
caesium clock. The idea of an atomic clock had been proposed by I.I.Rabbi in
1945, and an instrument was constructed shortly afterwards at the National
Bureau ...
Lance Day, Ian McNeil, 2014
10 NOTIZIE DOVE SI INCLUDE IL TERMINE «CAESIUM CLOCK»
Vedi di che si parla nei media nazionali e internazionali e come viene utilizzato il termine ino
caesium clock nel contesto delle seguenti notizie.
NASA explains why 30 June received an extra 'leap second'
These transitions are so reliable that the caesium clock is accurate to one second in 1,400,000 years. However, the mean solar day – the ... «Astronomy Now Online, giu 15»
Atomic time: 60 years of the ultra-precise atomic clock
“The caesium clock continues to tick at its normal frequency. The software in the clock can be programmed to have a minute with an extra ... «E&T magazine, giu 15»
Hyper-precise atomic clocks face off to redefine time
Happy birthday, caesium clock. Now move over. As the atomic clock used to define time itself turns 60, tests are set to begin on a new ... «Nature.com, giu 15»
Measuring The Accuracy Of A Rubidium Standard
The obvious way of checking would be to use another source with a higher accuracy, such as a caesium clock and do a phase comparison. «Hackaday, mag 15»
Caesium: A brief history of timekeeping
Without the caesium clock, for example, satellite navigation would be impossible. GPS satellites carry synchronised caesium clocks that enable ... «BBC News, ott 14»
Create the ultimate world clock with a quantum link
The signal is so incredibly regular that the latest caesium clock recently brought online in the US will not lose or gain a second in about 300 ... «New Scientist, giu 14»
Digital Atomic Clock Watch Gets Funds Via Kickstarter, Creators …
There is an internal scheduler switching the caesium clock on and off which maintains the accuracy and extends the battery life to over 30 ... «Latin Post, apr 14»
World's first truly atomic watch coming to Kickstarter
... an internal scheduler switching the caesium clock on and off can maintain almost all of the accuracy, however, while extending battery life to ... «Geek, apr 14»
Record-breaking atomic clock won't lose second in 5bn years
... better precision and the NIST and JILA researchers hope that one day their devices could replace the current standard-setting caesium clock. «E&T magazine, gen 14»
NIST atomic clocks set stability record
"Caesium clocks define the second, and ultimately other clocks must be referenced to a caesium clock to claim true accuracy," commented ... «Optics.org, set 13»
