 | Marvin H. Green - 1973 - 144 páginas
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 | Marvin H. Green - 1973 - 136 páginas
[ Lo sentimos, el contenido de esta página está restringido. ] | |
 | Ray E. Bolz - 1973 - 1188 páginas
...the 13th General Conference on Weights and Measures is: "The second is the duration of 9 192631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the fundamental state of the atom of cesium 133. "The frequency (9 192631 770 hz). which the definition... | |
 | K. J. Pascoe - 1973 - 344 páginas
[ Lo sentimos, el contenido de esta página está restringido. ] | |
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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 (13th CGPM, 1967). 
