Here:
http://www.ratemyprofessors.com/ShowRatings.jsp?tid=14936&page=1Compare to another physics professor in the same school:
http://www.ratemyprofessors.com/ShowRatings.jsp?tid=392809Look, there isn't much difference in the easiness rating, meaning that he cannot use difficulty as an excuse.
Amsel has no idea what science is.