Found in a Box

I recently ascended to Czar of Physics. (Oops — I mistyped Chair and it autocompleted to Czar!) It’s not my first year as Czar, but this time, during the handover from the previous Czar, I inherited a small cardboard box. Inside I found a stack of old Wooster ΣΠΣ membership cards. (ΣΠΣ is Greek for SPS and signifies the SPS honor society; SPS is an initialism for the Society of Physics Students.) The two cards in the accompanying photograph are especially interesting. Karl modestly lists his position as president of the Massachusetts Institute of Technology. His brother Arthur reports being a professor at the University of Chicago but doesn’t mention the Nobel Prize he won four years earlier for scattering light from electrons. The Compton effect helped convince physicists of the wave-particle duality of matter and subsume classical mechanics in quantum mechanics.