Here are some videos of the “Visualizing streak lines, path lines, and streamlines (with lots of Ping-Pong balls)” demonstration. The videos do not show the follow up drawings. The headings are links to higher resolution videos. Thanks to Scott Black of the Glenn Department of Civil Engineering for help with the videos and all the technicians in the department for help in building this and other demonstrations. Also, don’t forget to follow @nbkaye on twitter to get updates on this blog.