 | 1974 - 64 sider
...adopt a natural and indestructible standard, decides 1 The metre is the length equal to 1 650 763.73 wavelengths in vacuum of the radiation corresponding to the transition between the levels 2 p10 and 5 d5 of the krypton-86 atom. 2 The definition of the metre in force since 1889, based on... | |
 | 1918 - 48 sider
...throughout the scientific world. The orange-red wavelength is precisely described as the wavelength in vacuum of the radiation corresponding to the transition between the levels 2pi0 and 5^5 of the atom of krypton 86. The author acknowledges with gratitude the assistance he has... | |
 | Great Britain - 1963 - 1436 sider
...DEFINITIONS OF UNITS OF MEASUREMENT Measurement of length METRE The metre is the length equal to 1 650 763.73 wavelengths in vacuum of the radiation corresponding to the transition between the levels 2p,0 and 5d5 of the krypton — 86 atom. [General Conference of Weights and Measures held in Paris... | |
 | United States. National Aeronautics and Space Administration - 1964 - 664 sider
...indestructible standard, DECIDES: 1) The meter is the length equal to 1,650,763-73 wavelengths in a vacuum of the radiation corresponding to the transition between the levels 2p, ... and 5d,- of the atom of krypton 86. 2) The definition of the meter in force since 1889, based on the international... | |
 | E. A. Mechtly - 1969 - 28 sider
...International Committee and the General Conferences. meter (m) The meter is the length equal to 1 650 763.73 wavelengths in vacuum of the radiation corresponding to the transition between the levels 2 p,0 and 5 ds of the krypton-86 atom. kilogram (kg) The kilogram is the unit of mass; it is equal... | |
 | United States. Congress. House. Science and Astronautics Committee - 1973 - 682 sider
...diffusi cotffi ISO 1000-1973 (E) ISO 1000-1973 <E) APPENDIX The metre a the length equal to 1 650 763,73 wavelengths in vacuum of the radiation corresponding to the transition between the levels 2p, 0 and 5d, of the krypton-86 atom. 111th CGPM U96OI, Reeotutton 6) kilogram The kilogram is the unit... | |
 | R. G. Liptai, Jack W. Pearson - 1975 - 350 sider
...given in the following paragraphs: A2.12.1 metre — The metre is the length equal to I 650 763.73 wavelengths in vacuum of the radiation corresponding to the transition between the levels 2p,0 and 5d» of the krypton-86 atom. (adopted at IIthCGPM I960) A2.12.2 kilogram — The kilogram... | |
 | Chester Hall Page, Paul Vigoureux - 1975 - 268 sider
...1th CGPM on October 14, 1960, in the following terms: "The metre is the length equal to 1 650 763.73 wavelengths in vacuum of the radiation corresponding to the transition between the levels 2pi0and 5d3 of the krypton-86 atom."5 5 The energy levels of the krypton-86 atom which occur in this... | |
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The meter is the length equal to 1 650 763.73 wavelengths in vacuum of the radiation corresponding to the transition between the levels 2p10 and 5d5 of the krypton-86 atom. 
