Einstein's One-Two Punch To Classical Physics

Poor classical physics got absolutely wrecked when Einstein showed up in 1905 with his revolutionary papers. On one side, he's telling us light comes in discrete packets of energy (quanta), completely demolishing the nice, tidy wave theory everyone was comfortable with. On the other side, he's insisting light speed is constant regardless of reference frame, which makes about as much sense as claiming your coffee stays the same temperature no matter who's measuring it. Classical physicists were just standing there like Spider-Man, caught between two buildings of reality collapsing around them. Newton's probably still rolling in his grave.