Originally Posted by miriam
Originally Posted by vintagemotif
I find it interesting how some folks here remember Montgomery Wards for clothes and sewing machines, while I remember it for its wonderful science show.
science show?
Physics 101
Science as to the beach ball staying up in the air about a couple of feet above a vacuum cleaner. Not a mystery, but Bernoulli's principle, sometimes demonstrated in high school science classes. I was always fascinated with the ball. Sometimes it would be tilted off from center of the vacuum cleaner and would still stay up, Coanda effect.
http://www.youtube.com/watch?v=9YaUC8W0P7c