Analysis of information sources in references of the Wikipedia article "光速" in Chinese language version.
The possibility that the fundamental constants may vary during the evolution of the universe offers an exceptional window onto higher dimensional theories and is probably linked with the nature of the dark energy that makes the universe accelerate today.
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被忽略 (帮助).... if the speed of light is defined as a fixed number then, in principle, the time standard will serve as the length standard ...
One peculiar consequence of this system of definitions is that any future refinement in our ability to measure c will not change the speed of light (which is a defined number), but will change the length of the meter!
Note that [...] improvements in experimental accuracy will modify the meter relative to atomic wavelengths, but not the value of the speed of light!
The possibility that the fundamental constants may vary during the evolution of the universe offers an exceptional window onto higher dimensional theories and is probably linked with the nature of the dark energy that makes the universe accelerate today.
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(帮助). 简明摘要 – Nature (19 November 2009). The possibility that the fundamental constants may vary during the evolution of the universe offers an exceptional window onto higher dimensional theories and is probably linked with the nature of the dark energy that makes the universe accelerate today.
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(帮助). 简明摘要 – Nature (19 November 2009). |archiveurl=
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(帮助). 简明摘要 – Nature (19 November 2009). |archiveurl=
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(帮助). 简明摘要 – Nature (19 November 2009). ... if the speed of light is defined as a fixed number then, in principle, the time standard will serve as the length standard ...
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(帮助). 简明摘要 – Nature (19 November 2009).