The mathematician and the canine did some interesting experiments and arrived at a very interesting theory. Who’s the prof (1) and what’s the experiment (rest)?

1. 
2. 
3. 
   A is the dog, B is the ball, BC is the perpendicular distance to the ball.

Cracked (in some cases with slight mixups) by udupendra , krudebox , Jean Valjean , emrohit , Dibyo , Raghuvansh , p vs np , Johny Walker , shenoyvarun86 , Rogi , lordmaldy , akhi , Logik , varuns88 , madhur , Ananth , BASAB , dheeraj , Deepthi JS , Mo , superbrat , byslexia and foobar.

udupendra, krudebox, Jean Valjean, emrohit, Dibyo, Raghuvansh, p vs np, Johny Walker, shenoyvarun86, Rogi, lordmaldy, akhi, Logik, varuns88, madhur, Ananth, BASAB, dheeraj, Deepthi JS, Mo, superbrat, byslexia and foobar