| 41. | :: : : The speed of light is determined by two physical constants : Vacuum permittivity and Vacuum permeability.
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| 42. | The elementary charge is one of the fundamental physical constants, and accurate knowledge of its value is of great importance.
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| 43. | Our articles physical constant and dimensionless physical constant do a pretty good ( if cursory ) job of defining the differences.
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| 44. | Our articles physical constant and dimensionless physical constant do a pretty good ( if cursory ) job of defining the differences.
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| 45. | It is only the "'dimensionless "'physical constants that ultimately matter in the definition of worlds.
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| 46. | In light of that, some theoretical physicists still hope for continued progress in explaining the values of other dimensionless physical constants.
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| 47. | :Although we conventially say that c is a physical constant, it actually is nothing more than an irrelevant scaling constant.
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| 48. | It appears in many formulas in physics, and several physical constants are most naturally defined with or its reciprocal factored out.
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| 49. | Accordingly, an infinite universe will contain an infinite number of Hubble volumes, all having the same physical laws and physical constants.
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| 50. | The parameter " ? " 0 is a measurement-system constant, not a physical constant that can be measured.
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