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Ramazan Duzgun
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is it possible, i mean can we hold it at a certain distance we want ?
i consider it inside of the atmosphere, on earth. But in vacuum i guess it doesn't matter. Light can travel in both mediums, right?BvU said:Hello Ramazan,
What kind of air are you thinking of ?
How can you say that isn't really possible ? what do you relly on ? can you show me any proof of it..thank you btwBvU said:Yes, it definitely can.
My question was more if you consider fog and rain as air.
Light gets scattered by air molecules, but that's not really 'holding it at a certain distance'.
Actually stopping a ray of light isn't really possible without putting something in its way, to absorb it.
Light is an electromagnetic wave that behaves according to Maxwell's equations. These equations do not allow "standing still" as a solution.Ramazan Duzgun said:How can you say that isn't really possible ? what do you relly on ? can you show me any proof of it.
We receive light from galaxies billions of light years away, and the CMBR from even further.Ramazan Duzgun said:How can you say that isn't really possible ? what do you relly on ? can you show me any proof of it..thank you btw
Ramazan Duzgun said:How can you say that isn't really possible ? what do you relly on ?
Ramazan Duzgun said:i consider it inside of the atmosphere, on earth. But in vacuum i guess it doesn't matter. Light can travel in both mediums, right?
Ramazan Duzgun said:is it possible, i mean can we hold it at a certain distance we want ?
Well, the problem with that is that you can't get the air to move at the speed of light.DrStupid said:Just let the air move with the corresponding speed in the opposite direction in this distance.
The speed of light in air is slightly less than c. So the possibility exists to get some "air" moving very close to c one way and shoot light through it in the opposite direction.phinds said:Well, the problem with that is that you can't get the air to move at the speed of light.
It is a common misconception that light beams can stop in air. In reality, light is constantly moving at a constant speed of approximately 299,792,458 meters per second in a vacuum. While light can slow down when passing through certain materials, such as water or glass, it cannot stop completely in air.
Light slows down when passing through materials due to the interactions between the photons (particles of light) and the atoms in the material. These interactions cause the light to be absorbed and re-emitted, resulting in a slower overall speed for the light as it travels through the material.
No, light cannot stop in a vacuum. A vacuum is a space completely devoid of matter, and light needs matter to interact with in order to slow down. Therefore, light will always continue to travel at its constant speed in a vacuum.
Currently, there is no known material that can completely stop light. However, scientists have been able to slow down light to an incredibly low speed (around 17 meters per second) by passing it through a specially designed material called a Bose-Einstein condensate. This is the closest we have come to creating a material where light can stop.
If light were to stop in air, it would violate the laws of physics. As mentioned earlier, light needs matter to interact with in order to slow down. If light were to stop, it would essentially cease to exist as photons and would no longer be able to interact with anything. This would have major implications for the functioning of our universe as we know it.