They are just 4 equations that describe perhaps all there is to know on the universe on electricity and magnetism, electromagnetism.
They even predicted theoretically that radio waves, microwaves, infra red waves, optical waves, ultra violet waves, X ray waves, radioactivity waves are all light ie electromagnetic waves of different frequency.
Feynman in his lectures book even derives so much we know in inductors and capacitors from Mawell's equations.
In fact our modern civilization is build on them.
But it's much more, 4 very important ways to describe the universe.
And everything one needs to know to understand how a ribbon microphone or audio transformer or electron tube operates etc...even what happens to the electrons inside the magnet or then magnetic
circuit. How electrons move to the edges of the ribbon, the damping of the. Ribbon by the movent of electrons themselves and their infection with the spinning electrons inside the magnet.
How the energy from the sun gets to us...
The list is endless.
See also:
The Feynman Lectures on Physics - Feyman, Leighton, Sands
Conceptual Physics - Hewitt
A level physics
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