tag:blogger.com,1999:blog-2433841880619171855.post1482599340396727313..comments2024-03-27T21:09:44.320+00:00Comments on Pat'sBlog: On This Day in Math - January 3Unknownnoreply@blogger.comBlogger2125tag:blogger.com,1999:blog-2433841880619171855.post-63444193407224344802013-01-03T01:47:50.354+00:002013-01-03T01:47:50.354+00:00There is a giant Foucault pendulum hanging in a wi...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.Bob Mrotekhttps://www.blogger.com/profile/15016079751197723749noreply@blogger.comtag:blogger.com,1999:blog-2433841880619171855.post-12943423250988341242013-01-03T01:42:52.299+00:002013-01-03T01:42:52.299+00:00A planimeter is sooo cool! You can see a great dem...A planimeter is sooo cool! You can see a great demonstration on You Tube:<br />http://www.youtube.com/watch?v=pvGuGaImTekBob Mrotekhttps://www.blogger.com/profile/15016079751197723749noreply@blogger.com