TABLES I AND II
TABLE I: Recommended values for Planck’s constant, h; the ratio h/e;electron rest mass, m;and the Rydberg constant, R∞.
Date (h x 10-34 J-s) (h/e x 10-15 J-s/C) (m x 10-31 kg) (R∞ x cm-1 Reference 1939 6.6214 1.3793 9.1028 109737.42 130 1941 6.6242
1.37933
9.1066
109737.303
131
1947 6.6237
1.37926
9.1055
109737.300
132
1950 6.62363
1.37930
9.1071
109737.323
133
1952 6.6252
1.37943
9.1085
109737.309
134
1955 6.62517
1.37942
9.1083
109737.309
135
1963 6.62559
1.379474
9.10908
109737.310
136
1965 6.62592
1.379500
9.10934
109737.310
137
1969 6.626196
1.3795234
9.109558
109737.307
138
1973 6.626227
1.3795017
9.109560
109737.3177
139
1986 6.6260755
1.37951075
9.1093897
109737.3534
140
1998 6.6260687
1.37951011
9.10938188
109737.31568549
141
2002 6.6260693
1.37951016
9.1093826
109737.31568525
142
TABLE II: Birge’s recommended values of the velocity of light, c [57, 143]
Cornu-Helmert Toothed Wheel 1874.8 2.99990 Birge Michelson
Rotating Mirror
1879.5
2.99910
Birge
Newcomb
Rotating Mirror
1882.7
2.99860
Birge
Michelson
Rotating Mirror
1882.8
2.99853
Birge
Perrotin
Toothed Wheel
1902.4
2.99901
Birge
Rosa & Dorsey
Electrical Units
1906.0
2.99803
Froome & Essen
Mercier
Waves on Wires
1923.0
2.99795
Froome & Essen
Michelson
Polygonal Mirror
1926.5
2.99798
Birge
Mittelstaedt
Kerr Cell
1928.0
2.99786
Birge
Pease & Pearson
Polygonal Mirror
1932.5
2.99774
Birge
Anderson
Kerr Cell
1936.8
2.99771
Birge
Huttel
Kerr Cell
1937.0
2.99771
Birge
Anderson
Kerr Cell
1940.0
2.99776
Birge
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