A Gage Block Measurement Process Using Single Wavelength Interferometry, Issues 152-155U.S. Department of Commerce, National Bureau of Standards, 1975 - 30 pages |
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... speed it up . Anything that swings evenly can be used to measure time interval simply by counting and keeping track of the number of swings or ticks - provided we know how many swings take place in a recognized unit of time , such as a ...
... speed it up . Anything that swings evenly can be used to measure time interval simply by counting and keeping track of the number of swings or ticks - provided we know how many swings take place in a recognized unit of time , such as a ...
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... speed - or " knots " -at which the ship was moving . MECHANICAL CLOCKS The first mechanical clock was built probably sometime in the 14th century . It was powered by a weight attached to a cord wrapped around a cylinder . The cylinder ...
... speed - or " knots " -at which the ship was moving . MECHANICAL CLOCKS The first mechanical clock was built probably sometime in the 14th century . It was powered by a weight attached to a cord wrapped around a cylinder . The cylinder ...
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... speed to run at another speed . Although the resonance curve of the ammonia molecule is very narrow compared to previously used resonators , there are still problems . One is due to the collision of the ammonia molecules with one ...
... speed to run at another speed . Although the resonance curve of the ammonia molecule is very narrow compared to previously used resonators , there are still problems . One is due to the collision of the ammonia molecules with one ...
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... ticks , " the definition of the second based on astronomical observa- TIME IN TUBE = LENGTH OF TUBE SPEED OF ATOMS = 0.04 SEC . FREQUENCY SPREAD = TIME IN TUBE = 25Hz = 0.04 = 2512 46 LIGHT SOURCE QUARTZ CRYSTAL OSC . AND RADIO SIGNAL 45.
... ticks , " the definition of the second based on astronomical observa- TIME IN TUBE = LENGTH OF TUBE SPEED OF ATOMS = 0.04 SEC . FREQUENCY SPREAD = TIME IN TUBE = 25Hz = 0.04 = 2512 46 LIGHT SOURCE QUARTZ CRYSTAL OSC . AND RADIO SIGNAL 45.
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... speeds up , because of seasonal variations on the surface of the earth , as first suspected by John Flamstead . One ... speed increases , so that his that his rotational momentum remains unchanged , and vice versa . The earth is also an ...
... speeds up , because of seasonal variations on the surface of the earth , as first suspected by John Flamstead . One ... speed increases , so that his that his rotational momentum remains unchanged , and vice versa . The earth is also an ...
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Common terms and phrases
1817 LIBRARIES air Å antiparticles Appendix atomic clocks broadcast Bureau of Standards cesium charge conjugation Classification length Wave Classified Lines cm 1 Tube cm 1 Wave cm Tube Spark commutation relations components earth electronic energy g-values gage block gauge hafnium Hf 1-Continued Hilbert space Intensity Classification length Intensity length Wave interferometer invariance JOHN ROBB JOHNNY HART Lagrangian Landé leap second length air length Wave number Lines of Hf Lorentz group Lorentz transformation matrix measurement Meggers MICHIGAN microinch momentum National Bureau number o-c cm number Wave number O-C 1 cm Observed and Classified operator oscillator particles pendulum Phys physical quency radio signal representation rotation rubidium sine waves Spark Wave number speed spinors star swings synchronized temperature theory tion Tube Spark o-c Tube Spark Wave vector watch Wave number air Wave number cm Wave number O-C Wave number Wave wavelength Zeeman zero
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