the most intriguing educational video maust be a series of general chemistry done in the late 80's titled The world Of Chemistry. Its focus point is the Host, a funny, funny looking man named Roald Hoffmann. He is a Nobel Prize winner but that is not important. He has the most curious way of talking with a sincier smile and painfully gentle Eastern European tone, all awkwardly coming out from this round looking man in a bright blue sleeveless pullover. I first saw it in my highschool cham class. Don Showalter the maniac Series Demonstrator doesn't even come close! I intend to go back there to make copies of the series for myself.
Update: I just found
a website where one can see the entire series online after a free sign up! ohh my, the music! the colors! This one os one of the best: 18. The Chemistry of the Earth