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Prof. K. Smiles Mascarenhas, Coimbatore, India says: " An astronomer named Chritiansen Roemer gave an estimate of 215,000 Km/sec (the accepted value is approximately 300,000 Km/sec) for the velocity of light in the year 1676. He made this estimate while observing an eclipse of Io, the satellite of Jupiter by the giant planet. He was wrong about the estimate because the radius of the earth's orbit was not accurately known at that time. Still, he can be credited as the first person to estimate such an enormous velocity. The first terrestrial estimate was made by a physicist named Fizzeu through his 'toothed wheel experiment '. Later, the measurements were refined by Michelson"
What else can I help you with?
Light velocity is186000 using the light velocity when did supernova actually occurred relative to when the Chinese astronomers saw the explosion?
SN185, the first supernova recorded by Chinese astronomers in 185 AD, is estimated to be 8200 lightyears away from us. As such, the actual time of the explosion is estimated to be 8015 BC.Since large astrometric distances are measured in light years, it is not necessary to know the speed of light or use it in any calculation, for the purposes of answering this question.
The velocity of light was first measured by?
The velocity of light was first measured by Ole Rømer, a Danish astronomer, in 1676. He used observations of the moons of Jupiter to deduce the finite speed of light.
Velocity of light was first measured by?
By Roemer, observing the moons of Jupiter.
What is the velocity of light in meters?
the velocity of light is 300000000 m/s
What is the equation for velocity approaching that the speed of light?
The equation for velocity approaching the speed of light is given by the relativistic velocity addition formula: v = (u + v') / (1 + u*v'/c^2), where v is the relative velocity between two objects, u is the velocity of the first object, v' is the velocity of the second object, and c is the speed of light in a vacuum.
When did scientists attempt to measure the speed of light?
Are you asking when the speed of light was first estimated, or are you asking when the speed of light was first actually measured?
What would be the velocity of ball which is thrown by the man who running at the speed equal to the velocity of light?
As velocity never exceeds the velocity of light.... so i hope a man running with the velocity of light will not be able to throw a ball with any velocity.......... we may get the maximum n minimum velocity with which that can be thrown mathematically that we may get it to be zero................
Is the velocity of a red light lower than the velocity of violet light a?
Not necessarily, but the frequencies are different.
Is the velocity of a red light lower than the velocity of violet light?
No it justs refracts further
Does Light have a speed or a velocity speed of light or velocity of light?
Light travels at the speed of light. There is no general velocity of light because velocity is a vector quantity, it also contains a direction and there is no preferred direction for light rays in general. Another answer: The speed of light has been calculated to be 186,000 miles per second.
Who invented light travels faster than sound?
The velocity of light was found by many scientists using different techniques. First Romer found the velocity of light by observing the eclipse and so he followed astronomical facts. First lab experiment done by Foucault. Due to some kind of limitations, later Michelson followed some precise method. Just by comparing the velocity of light with that of sound, we come to know that the former is much greater.
Compared to the velocity of radio waves the velocity of visible light waves is?
The velocity of visible light waves is the same as the velocity of radio waves in a vacuum, both traveling at the speed of light (approximately 299,792 kilometers per second).
