If you've paid attention to the credits of Cobra Kai, you might be surprised to see Will Smith's name listed in the credits.

Brad Pitt was in contention for the lead role in what would become a massive franchise, but he ended up making a middling spy movie instead.

The Wigner–Smith (WS) time delay matrix relates a system’s scattering matrix to its frequency derivative and gives rise to the so-called WS modes that experience well-defined group delays when ...