tag:blogger.com,1999:blog-4912713243046142041.post1795775552371881728..comments2024-03-28T23:22:41.774-05:00Comments on TYWKIWDBI ("Tai-Wiki-Widbee"): Fun with diffraction gratingsMinnesotastanhttp://www.blogger.com/profile/01382888179579245181noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-4912713243046142041.post-16127997174312388982013-03-10T10:32:52.725-05:002013-03-10T10:32:52.725-05:00You probably already have a lot of them already, w...You probably already have a lot of them already, with mirrors printed on their backs. Diffraction is why the underside of a CD or DVD makes rainbows. LEhttps://www.blogger.com/profile/16044670355258868249noreply@blogger.comtag:blogger.com,1999:blog-4912713243046142041.post-12297972277903654342013-03-07T13:59:03.684-06:002013-03-07T13:59:03.684-06:00I found some on the site onlinesciencemall.comI found some on the site onlinesciencemall.comNot Importanthttps://www.blogger.com/profile/18307127026012212518noreply@blogger.com