Light does not require a medium to travel, as established by the principles of relativity theory. The discussion clarifies that space is synonymous with a vacuum, particularly in the context of interstellar and intergalactic regions, which are nearly devoid of matter. The misconception that light waves need a medium is addressed, emphasizing that this assumption is incorrect and should be discarded.
PREREQUISITESPhysicists, students of physics, and anyone interested in the fundamental properties of light and the nature of space.
They don't. Discovering that there's no evidence of a medium was a large part of the work that led to relativity theory.rekha1804 said:Since light waves require a medium to travel,
Empty space is a vacuum. Interstellar and intergalactic space are almost empty, but not quite.rekha1804 said:What is the difference between space and vacuum?
This is a faulty assumption and you would do well to get rid of it.rekha1804 said:Since light waves require a medium to travel