Professor Knopoff was a very enthusiastic teacher... he's the type of person i would expect to be a physics major... one who finds beauty in the physics and not in the terse calculations behind it... the material was difficult.. but he had a very friendly approach... also, Tatiana is one of the best TA's i've ever had... she was seriously lifeboat for the whole class... Professor Knopoff is also great to listen to after the class is over... i highly recommend sitting through one of his after class lectures :)