The discussion revolves around the nature of light and the medium through which it travels in space, exploring concepts of space versus vacuum and the implications for light propagation. It includes theoretical considerations and challenges to assumptions about the necessity of a medium for light waves.
Participants express disagreement regarding the necessity of a medium for light to travel, with some asserting that light does not require one, while others maintain that it does. The discussion remains unresolved with competing views presented.
Limitations include differing definitions of space and vacuum, as well as the unresolved status of the assumption regarding light's need for a medium.
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