= Aether theories
{wiki=Aether_theories}
Aether theories refer to a historical set of concepts in physics that proposed the existence of a substance known as "aether" (or "ether") as a medium for the propagation of light and other electromagnetic waves. Here is an overview of the development and eventual rejection of these theories: 1. **Historical Context**: In the late 19th century, physicists believed that light needed a medium to travel through, similar to how sound travels through air.
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