Erirelatiivsusteooria kohaselt on valguse kiirus vaakumis kiiruse ülemine piir, millega tavapärane aine või energia (ja seega iga signaali kandev teave) võib kosmoses liikuda.
Good to know
Valguse kiiruse vaakumis c leppeliselt kinnistatud täpne väärtus SI-s on 299 792 458 m/s.
According to the special theory of relativity, the speed of light in vacuum is the upper limit for the speed at which conventional matter or energy (and thus any signal carrying information) can travel through space.
Good to know
Defining constant "speed of light in vacuum" c in the SI is 299 792 458 m/s.
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