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{{r|Speed of light}}

{{r|Speed of light}}

...19 - 18 September 1896) French physicist, who was the first to measure the speed of light without any recourse to astronomical observations, and using photography to

...ystem of units; symbol statA; 1 statA = 1 A/(10⋅''c''); ''c'' is the speed of light in m/s.

...when the speed of an [[object]] approaches or becomes comparable to the [[speed of light]].

{{r|Speed of light}}

.... No one takes this result as meaning that there is motion faster than the speed of light. These apparent contradictions seem confusing to many people. These experim

Since 1 statC = 1 [[coulomb]]/(10&sdot;''c'') with the [[speed of light]] ''c'' &asymp; 3&sdot;10⁸ m/s and 1 erg = 10^&minus;7 ...minus;6</sup>&sdot;''c''&nbsp; V where ''c'' is the numerical value of the speed of light expressed in m/s. (I.e., 1 statV is approximately 300 V, or ''exactly'' 299

Auto-populated based on [[Special:WhatLinksHere/Speed of light]]. Needs checking by a human.

...on the effect of change in the speed of light. A larger reduction in the speed of light within the medium will result in a greater angle of refraction. Diamonds, Refractive Index = Speed of Light in Material A / Speed of Material in Material B.

{{r|Speed of light}}

...photons&mdash;massless particles that propagate through space with the [[speed of light]]. In fact, [[light]] is a form electromagnetic radiation. Electromagnetic ...[[special relativity]] those particles with finite mass cannot achieve the speed of light because at that speed their [[Energy_(science)#Equivalence of energy and m

...b>²) F/m}}, ''c₀'' being the defined value for the [[speed of light]] in [[classical vacuum]] in the SI units.

{{r|Speed of light}}

...s propagating in a vacuum, '''''c''''' = 299,792,458 m/s = 300 Mm/s (the [[speed of light]]). Rounding to convenient values for [[radio]] waves, 300 divided by the f

{{r|Speed of light}}

&lambda; = ''c''/&nu; where ''c'' is the [[speed of light]]. Due to [[vibronic interaction]]s (interactions of electronic with vibra

...n the curvature of space-time. Gravitational waves, which propagate at the speed of light, were first detected in 2015, roughly 100 years after Einstein developed ge

{{r|Speed of light}}

{{r|Speed of light}}

...ctromagnetic radiation]] in a vacuum, '''''c''''' = 299 792 458 m/s, the [[speed of light]]. For sound in air at 20 Celsius and atmospheric pressure, '''''c''''' = 3

{{r|Speed of light}}

{{r|Speed of light}}

...] ''h''&nu;. These massless elementary particles move with the universal [[speed of light]] ''c''. The symbol ''h'' is [[Planck's_constant|Planck's constant]]. Photo

...'''photon''' is a massless [[elementary particle]] that travels with the [[speed of light]] and is associated with an [[electromagnetic wave]]. According to the [[S ...rsely proportional to &lambda;: &nu; = ''c''/&lambda;, where ''c'' is the speed of light (&asymp; 3·10⁸ m/s). A photon is a light quantum with energy ''

{{r|Speed of light}}

{{r|Speed of light}}

{{r|Speed of light}}

{{r|Speed of light}}

{{r|Speed of light}}

where ''c'' is the speed of light in m/s (''c'' &asymp; 3&sdot;10⁸ m/s) and A ([[ampere]]) is the

{{r|Speed of light}}

where c = 299,792,458 m/s (the [[speed of light]]) and h = 6.626 x 10^-34 Js ([[Planck's constant]])

{{r|Speed of light}}

{{r|Speed of light}}

{{r|Speed of light}}

...ub> is related to the [[electric constant]] ''ε''₀ and to the [[speed of light]] in vacuum by ''c'' ² ε₀ μ₀ = 1. </ref> Also, in Gaussian units, the speed of light is a measured, not a defined quantity.

{{r|Speed of light}}

...es of sound to bunch up (go higher) or spread out (go lower). However, the speed of light is constant. No matter what the relative speed of an object is, the light e ...traversed since the instant of the Big Bang, given the restriction of the speed of light." A. Guth (1997)</ref> is simply this; the universe looks the same on oppo

...nland. This delay is based on the fact that the signal is traveling at the speed of light.

...r internal clocks slow down, an effect noticeable as speeds approach the [[speed of light]]. In the case of light, the Doppler effect cannot distinguish whether the ...because it is of second order, varying as ''(v/c)²'' (''c'' the speed of light in classical vacuum).<ref name=transverse>

...s Lichtes und der Körperdichte,'' [On the relation between the propagation speed of light and density of a body] Ann. Phys. vol. '''9''', pp. 641-665 (1880). (Lorent

...t the speed of light is independent of the motion of the light source; the speed of light is the same in any [[Inertial frame of reference|inertial frame]] (coordina ...r transfer of information, and no causal effect may travel faster than the speed of light.<ref name=Penrose>

...r'' is the distance of the field point to the conductor and ''c'' is the [[speed of light]] (&asymp; 3&sdot;10¹⁰ cm/s). Because the speed of light ''c'' in two different units is needed, we write ''c'' numerically, but in

where ''c'' is the [[speed of light|speed of light in vacuum]] and ''μ''₀ is the [[magnetic constant]]. In the [[S

where C ([[coulomb]]) is the [[SI]] unit of charge and ''c'' is the SI [[speed of light]] (''c'' &asymp; 3&sdot;10⁸ m/s).

...ectron mass, ''c₀'' is the [[SI units]] defined value for the [[speed of light]] in vacuum, and ''&alpha;'' is the [[fine structure constant]]:<ref name=f with ''c₀'' the SI defined valued for the [[speed of light]] in vacuum. Thus, a theoretical expression for the Rydberg constant is obt

...s the round-trip time for them to return. Half that time, divided by the [[speed of light]], is the range.

...d is propagated through space as an [[electromagnetic wave]] at the same [[speed of light|speed as that of light]].