3 ms·I might click if you say what the link is.by yesenadam 6y agoI might click if you say what the link is.Talanes 6y agoThey do tell you it's from the PBS Infinite Series, if only in an indirect way. The exact video is "Can We Hear Shapes?"deleted 6y ago[deleted]deleted 6y ago[deleted]yesenadam 6y agoAh ok thanks. (Well, their sentence told me nothing...maybe because I'm not in USA.)