A perpetual motion machine is (as the name implies) a machine that moves perpetually; it never stops. Ever. So if you created one today and set it going, it would keep on going until the Big Freeze.

Newtonian, Lagrangian, and Hamiltonian approaches! 🕰️🔬 In this video, we explore the motion of a simple pendulum from three different perspectives: the Newtonian approach (using forces and ...