I think the joke is that all of the equations are for free space, and then Magneto writes the Maxwell equations for linear media. Technically the same equation, but it’s out of place with the free space ones. Maybe I’m wrong though. Reply

Seems Legit!

These are Maxwell's equations. What's the big deal?

I think the joke is that all of the equations are for free space, and then Magneto writes the Maxwell equations for linear media. Technically the same equation, but it’s out of place with the free space ones.

Maybe I’m wrong though.

He should be using quantum electro-dynamics duh!