> But Maxwell’s most celebrated insight was when he combined the work of Ørsted and Faraday to explain the essence of light.
> He realised that a changing electric field could create a changing magnetic field, which would then create another electric field and so on. The result would be a self-sustaining electromagnetic field, endlessly repeating, travelling incredibly fast.
It’s generally studied in undergraduate E&M courses.
Now if you’re curious about how E or M fields propagate you’ll start getting into quantum again. Generally this leads up to quantum electrodynamics, where as I understand it everything is treated as fields and interactions as particles.
How those fields propagate is the same as asking how wave functions “travel”. We simply don’t have to tools to even ask the right questions, IMHO.
> He realised that a changing electric field could create a changing magnetic field, which would then create another electric field and so on. The result would be a self-sustaining electromagnetic field, endlessly repeating, travelling incredibly fast.
https://cosmosmagazine.com/science/physics/what-is-light/
It’s generally studied in undergraduate E&M courses.
Now if you’re curious about how E or M fields propagate you’ll start getting into quantum again. Generally this leads up to quantum electrodynamics, where as I understand it everything is treated as fields and interactions as particles.
How those fields propagate is the same as asking how wave functions “travel”. We simply don’t have to tools to even ask the right questions, IMHO.