Time for a little silliness. S1 is studying for finals now, with thermodynamics and dynamics as two of the subjects. We were chatting about it got off subject something like this -
S1: BTW, since there is a “statics” and then “dynamics”, why is there not a “thermostatics” class?
Me: Really?
S1: Oh yeah. That would be an easy class - hey! look that stuff is hot and it will stay that way!
How many other “classes” are there that don’t exist?