tag:blogger.com,1999:blog-6479762.post1214141248902160931..comments2022-12-29T05:21:02.322-05:00Comments on Back of the Envelope: SpinningDonald S. Crankshawhttp://www.blogger.com/profile/12571080573039473056noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-6479762.post-76198152358736076232012-10-03T20:39:34.480-04:002012-10-03T20:39:34.480-04:00Thanks. I like this article about my hobby.Thanks. I like this article about my hobby.Momnoreply@blogger.com