Recent content by phoenix85

This is also what I thought, but I've been told that the initial lagrangian is galilean invariant, since this is a non-relativistic system. To be more precise about that, when computing the new lagrangian, one gets the old lagrangian plus the total time derivative of a given scalar function (the...

A "galilean puzzle" in electromagnetism Well, I still didn't managed to find the answer, since the puzzle seems a little bit more involved than I first tought...to perform the computations, you only need to know a little bit about lagrangian/hamiltonian dynamics in electromagnetism. Consider...