Analysis of information sources in references of the Wikipedia article "Швидкість світла" in Ukrainian language version.
... the most accurate standard for the metre is conveniently defined so that there are exactly 299792458 of them to the distance travelled by light in a standard second, giving a value for the metre that very accurately matches the now inadequately precise standard metre rule in Paris.
{{cite book}}: Обслуговування CS1: Сторінки з параметром url-status, але без параметра archive-url (посилання)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.
{{cite arXiv}}: Проігноровано |class= (довідка)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.
{{cite journal}}: |hdl-access= вимагає |hdl= (довідка){{cite journal}}: |hdl-access= вимагає |hdl= (довідка){{cite journal}}: |hdl-access= вимагає |hdl= (довідка)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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«The origins of the letter c being used for the speed of light can be traced back to a paper of 1856 by Weber and Kohlrausch […] Weber apparently meant c to stand for 'constant' in his force law, but there is evidence that physicists such as Lorentz and Einstein were accustomed to a common convention that c could be used as a variable for velocity. This usage can be traced back to the classic Latin texts in which c stood for 'celeritas' meaning 'speed'.»{{cite web}}: Cite має пустий невідомий параметр: |df= (довідка)
«The origins of the letter c being used for the speed of light can be traced back to a paper of 1856 by Weber and Kohlrausch […] Weber apparently meant c to stand for 'constant' in his force law, but there is evidence that physicists such as Lorentz and Einstein were accustomed to a common convention that c could be used as a variable for velocity. This usage can be traced back to the classic Latin texts in which c stood for 'celeritas' meaning 'speed'.»{{cite journal}}: |hdl-access= вимагає |hdl= (довідка)