2007-01-26 23:44:45 · 7 answers · asked by somu 1 in Science & Mathematics ➔ Physics
Here you go :-)
Olaf Romer (1676) was the first to calculate the velocity of light.
See site link for further info.
http://books.google.com/books?vid=ISBN0486607690&id=Afeff9XNwgoC&pg=PA91&lpg=PA91&ots=mg_pBa56EM&dq=Who+discovered+the+velocity+of+light+theory%3F&sig=unRKMJ-aEloFWTYvtjIYqwUXsnE
Pae 91
2007-01-26 23:53:59 · answer #1 · answered by brisbane b 4 · 0⤊ 0⤋
Actually it wasn’t invented it was discovered,
The process of trying to get its accurate speed, started in 1600, with unsuccessful experiments of Galileo then in 1676 Olaf Roemer came up with the first true measurement of light’s velocity, he noticed the anomalous behavior of how time elapsed b/n eclipses of Jupiter with it’s moons as it became shorter as the earth moved closer to Jupiter and became longer as Jupiter and earth drew apart based on that he calculated the speed of light approximately like 2.14 x 10 with the power of 8, meters per second. And that is very close to the modern precise value obtained by using laser interferometers device which is 2.99792458 x 10with the power of 8
2007-01-27 08:16:03 · answer #2 · answered by Anonymous · 0⤊ 0⤋
I invented light and others calculated its velocity.
2007-01-27 09:51:23 · answer #3 · answered by S B 2 · 1⤊ 0⤋
The first successful measurement of the speed of light using an earthbound apparatus was carried out by Hippolyte Fizeau in 1849. Fizeau's experiment was conceptually similar to those proposed by Beeckman and Galileo. A beam of light was directed at a mirror several thousand metres away. On the way from the source to the mirror, the beam passed through a rotating cog wheel. At a certain rate of rotation, the beam could pass through one gap on the way out and another on the way back. But at slightly higher or lower rates, the beam would strike a tooth and not pass through the wheel. Knowing the distance to the mirror, the number of teeth on the wheel, and the rate of rotation, the speed of light could be calculated. Fizeau reported the speed of light as 313,000 kilometres per second. Fizeau's method was later refined by Marie Alfred Cornu (1872) and Joseph Perrotin (1900).
Leon Foucault improved on Fizeau's method by replacing the cogwheel with a rotating mirror. Foucault's estimate, published in 1862, was 298,000 kilometres per second. Foucault's method was also used by Simon Newcomb and Albert A. Michelson. Michelson began his lengthy career by replicating and improving on Foucault's method.
In 1926, Michelson used a rotating prism to measure the time it took light to make a round trip from Mount Wilson to Mount San Antonio in California. The precise measurements yielded a speed of 186,285 miles per second (299,796 kilometres per second).
2007-01-27 07:52:27 · answer #4 · answered by Anonymous · 0⤊ 1⤋
None invents an already existing thing.
2007-01-27 07:51:18 · answer #5 · answered by J.SWAMY I ఇ జ స్వామి 7 · 2⤊ 0⤋
god .. i guess :D
2007-01-27 07:52:01 · answer #6 · answered by andy_114 2 · 2⤊ 0⤋
God.
2007-01-27 07:54:47 · answer #7 · answered by A 150 Days Of Flood 4 · 1⤊ 1⤋