The speed of light is not always fixed at 299792458 m/s. In earth's atmosphere, the speed of light slows, though this is negligible. In water, light travels at 75% of c, and in a diamond, light travels at .40 c. C is the speed of light, rounded to 300,000 km/s.
The speed of light decreases as it enters the Earth's atmosphere. This is because the atmosphere/air of Earth is more optically dense than space, a vacuum (i.e. there is no matter in outer space).
OK. That's going to heavily depend on what you mean by "Earth speed".
There. I said it.
I'll give it one shot, and take a wild guess that you mean the speed of
the Earth in its orbit around the sun.
That speed is almost exactly .0001 of the speed of light.
The speed of light in air depends on the temperature, pressure, and humidity
of the air, and to a small extent on the wavelength of the light.
If all of those numbers are something like 'average', then the refractive index
of air is about 1.00027, so the speed of that light in that air is
(speed of light in vacuum) divided by (1.00027)
The speed of light is faster than the highest speed of a car.
According to the Theory of Relativity, nothing can go faster than the speed of light. And since light is information, it cannot go faster than the speed of light.
NO.... the speed of light is always faster. =)
The speed of light is about 880 thousand timesfaster than the speed of sound.
speed of light
No
If you observe a clock moving past you at the speed of light, it will appear to you to have stopped.
Light is about 800,000 faster (compared to the speed of sound in air).
The speed of light.
Light.
The speed of knowledge/information travels faster than the speed of light.
The speed of light is faster than the highest speed of a car.
No. The Concorde flew faster than the speed of sound. Nothing can move faster than the speed of light.
Travelling faster than the speed of light is not possible, therefore no galaxies have travelled or are travelling faster than the speed of light.
According to the Theory of Relativity, nothing can go faster than the speed of light. And since light is information, it cannot go faster than the speed of light.
Light is faster because speed does not move. Speed is a measure of the rate of movement but, in itself, it does not move - at all!
NO.... the speed of light is always faster. =)