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narcokiller
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what happens to light if it is not interfered with in any way, will it just carry on forever? What is the relationship between light and spacetime more specifically can there be time without light?
Yesnarcokiller said:what happens to light if it is not interfered with in any way, will it just carry on forever?
While the properties of spacetime are obviously dependent on the speed of light, light itself has no direct effect. So yes, there can be time without light. If I am in a room completely absent of light, time will still pass yes?narcokiller said:What is the relationship between light and spacetime more specifically can there be time without light?
narcokiller said:can there be time without light?
Claude Bile said:While the properties of spacetime are obviously dependent on the speed of light, light itself has no direct effect.
The speed of light in a vacuum is approximately 299,792,458 meters per second (m/s). This is a fundamental constant in physics and is denoted by the letter "c".
Light travels through space in a straight line at a constant speed until it is either absorbed or scattered by matter. This is known as the principle of rectilinear propagation.
According to Einstein's theory of general relativity, light is affected by the curvature of spacetime caused by massive objects. This is known as gravitational lensing and it explains why light can appear to bend around massive objects like stars and galaxies.
Yes, light can travel through a vacuum because it does not require a medium to propagate. This is why light from distant stars and galaxies can reach us even though there is empty space between us and them.
Studying light and spacetime can help us better understand the fundamental laws of the universe and how it works. It also has practical applications in fields such as astronomy, telecommunications, and quantum mechanics.