PikaPika Stop-Motion Light Doodle Videos

Via JapanProbe.com: "
We took a photo of each image using long exposures and put them together to make them look like one animation.
To work on this project,we went out to various places in Japan:parks,under the train track,the Tokyo Bay,school hallways,and so on.
We got all sorts of friends in different fields together to work on this project."
And here's a video showing how they made the one above!
Really neat stuff!