Thursday, 3 January 2013

2 comments:

Bob Mrotek said...

A planimeter is sooo cool! You can see a great demonstration on You Tube:
http://www.youtube.com/watch?v=pvGuGaImTek

Bob Mrotek said...

There is a giant Foucault pendulum hanging in a wide stairwell from a point very high up at the Museum of Science and Industry in Chicago. As a kid it was one of my favorite exhibits because the movement is fairly pronounced.