Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective Extremely
fine , especially of thehyperfine structure in thespectra ofatoms andmolecules .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adjective extremely fine or thin, as in a spectral line split into two or more components
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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The magnetic field separates these levels into two "hyperfine" states.
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Have you a device by which I might measure the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom?
Measurement ewillett 2009
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The second is now defined as “the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom.”
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The second was redefined in 1967 to be the time it takes for 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom.
A Great Leap…Forward? John 2008
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He did his thesis work with Professor Robert T. Schumacher using a self-made electron microwave spin resonance spectrometer to study the hyperfine spectrum of interstitial hydrogen atoms in CaF2 crystals.
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Unit of time second The second is the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom.
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They feature a picture of the solar system, a picture of the probes and a pictorial representation of the hyperfine transition of neutral hydrogen.
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That hyperfine distinction worried Justice Sandra Day O'Connor, but she suggested few lawmakers "would be so naive as to enact a law directly prohibiting or burdening a religious practice as such."
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They feature a picture of the solar system, a picture of the probes and a pictorial representation of the hyperfine transition of neutral hydrogen.
Lore Sj 2008
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The second is the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom.
Second 2008
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