| 21. | The value of those wavelengths, in turn, is directly related to the value of the fine structure constant.
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| 22. | In 1999, evidence for time variability of the fine structure constant based on observation of quasars was announced.
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| 23. | In the late 1930s, the best experimental value of the fine-structure constant, ?, was approximately 1 / 136.
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| 24. | Although confirmed experimentally, the measurement is not precise enough to improve on other techniques for determining the fine-structure constant.
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| 25. | For example, no candidate theory is able to calculate the fine structure constant or the mass of the electron.
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| 26. | The eight Gell-Mann matrices ( see article for them and the structure constants ) are important for quantum chromodynamics.
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| 27. | Arthur Eddington argued that the fine structure constant was a unit fraction, first 1 / 136 then 1 / 137.
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| 28. | That is to say, the fine-structure constant shows the electron traveling at nearly 1 / 137 the speed of light.
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| 29. | In particular any nilpotent Lie algebra with irrational structure constants is an example of an unimodular group without a lattice.
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| 30. | Lava flow terminations appear as subvertical cliffs up to in height, which are structures constant with eruptions against glacial ice.
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