If you're of a certain age, you may well remember seeing these
demonstrations of physics principles on PBS or in your science classes.
Julius Sumner Miller was a wild-haired, excitable little man with a real
flair for creating dramatic demonstrations. It's very nostalgic to
watch these again, and I'm struck by how well he presents the concepts
with practical application and a minimum of dry facts.
If you're ever left wondering "why is it so?", chances are Professor
Miller can explain it for you:
http://www.youtube.com/view_play_list?p=10ED1BADAF69310A