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So in university lectures about the Maxwell's equations and electrodynamics, it's quite common to start



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with electrostatic and Magneto's tactics.



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However, here for this course, I want to go a bit of a different route, and I want to start with



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electromagnetic waves.



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This is because I want you to understand what light is and why light behaves like wave.



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And I think it's really fascinating that we can derive this from the Maxwell's equations.



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However, for this we need to consider a special case, and this is the electromagnetic fields in vacuum.



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And what this means, we have to set the charged density roll at the current density to zero.



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And this is then, so to say, a special version of our Maxwell's equations.



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So let's go ahead and do it.