These feel good. Targeted at upper undergrads, so he says he holds back on some stuff, but gives a good level of detail for people who have a life.
- Are there more than 3 generations of particles in the Standard Model? | 47
- Dirac equation | 325, 2k, 26
- Klein-Gordon equation | 190, 443, 1
- Quantum chromodynamics | 93, 254, 8