Light is an electromagnetic wave that travels at a constant speed from "summary" of The World of Physics 2nd Edition by John Avison
The nature of light has long puzzled scientists and philosophers alike. It wasn't until the 19th century that the true understanding of light as an electromagnetic wave began to emerge. This revolutionary concept brought about a paradigm shift in the field of physics. According to this theory, light is a form of electromagnetic radiation that travels through space in the form of waves. These waves consist of oscillating electric and magnetic fields that propagate in a perpendicular fashion to each other. This unique characteristic allows light to travel through a vacuum at a constant speed of approximately 3.00 x 10^8 meters per second. The speed of light is a fundamental constant in the universe and serves as ...
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