1.   Because Carrie wanted to study physics, the number of physics majors each university had graduated was a factor in her formula.

2.   In actual numbers, it is among the top three schools in producing physics majors.

3.   They are none of them physics majors, obviously.

4.   Two physics majors, Justin Kasper and Fred Niell, gathered up some spare junk from their physics labs and dorm rooms and built a plutonium-producing reactor.