This is with repect to the consideration by Einstein that the speed of light does not change under any circumstances.Again,if everything else can change, why the speed of light alone does not change..?Have any experiments proved this ..?Or is it still only a theortical belief ....?
2006-07-12 00:38:37 · 8 answers · asked by Genius 1 in Science & Mathematics ➔ Other - Science
This is with repect to the consideration by Einstein that the speed of light does not change under any circumstances.Again,if everything else can change, why the speed of light alone does not change..?Have any experiments proved this ..?Or is it still only a theortical belief ....? I mainly want to know why it has been taken as a constant in relativity principles ..coz it cud also change with respect to the source...
2006-07-12 00:51:01 · update #1
I mainly want to know why it has been taken as a constant in relativity principles ..coz it cud also change with respect to the source...
2006-07-12 00:53:32 · update #2
Michelson-Morley experiment has proved that the light has the same speed under all circumstances.
Check the website stated below.
2006-07-12 00:44:31 · answer #1 · answered by Vlada M 3 · 0⤊ 0⤋
The speed of light (c) doesn't change in vacuum, says Einstein as a postulate. Also Plancks constant (h) is supposed to be a constant.
In the recent years it is measured, that c and h change a very little bit, however hc is nevertheless still a constant.
The reason is completely unknown.
2006-07-12 07:50:13 · answer #2 · answered by Thermo 6 · 0⤊ 0⤋
Einstein discovered the absolute speed in the universe which we presume light travels at if it is truly without mass. Light can travel at that speed only in an absolute vacuum (IE deep space). If light travels in a medium it slows in proportion to the mass of the medium it travels in (much slower in water). I believe this is relativistic. We would observe the light going slower but the beam of light would be experiencing longer seconds and be going the same speed per second.
2006-07-12 07:54:34 · answer #3 · answered by Nike7 1 · 0⤊ 0⤋
The speed of light (in a vacuum) has been scientifically proven to be a constant. Many experiments have been performed confirming results that could only be true if the speed of light was constant.
2006-07-12 07:47:45 · answer #4 · answered by lunatic 7 · 0⤊ 0⤋
it is true that the speed of light cannot change according to relativity but at the same time, many experiments with superconductors have made scientists think about relativity again. although relativity is prooved innumerable times the experiments with superconductors show that light slows down and can even be stopped. this is called an illusion which makes a lot of mistakes but according to the question light can be slowed down by superconductors.
2006-07-12 07:45:04 · answer #5 · answered by ankitd 3 · 0⤊ 0⤋
it do changed under some circumstances. for example, near the black hole in space, light barely can passed the black hole..the light were suck in..it shows that the speed of light can be tempered, with very powerful gravity power.
2006-07-12 07:43:54 · answer #6 · answered by James Bond 5 · 0⤊ 0⤋
the speed of light does change.. when it passes throught the atmosphere; dust clouds etc
2006-07-12 07:42:01 · answer #7 · answered by greengunge 5 · 0⤊ 0⤋
Yes, it can be proven, by using a denser transparent medium, such as glass or plastic.
2006-07-12 07:48:30 · answer #8 · answered by ceprn 6 · 0⤊ 0⤋