The physics game blog Fun Motion hath returned with a little look at some neat physics toys, including Line Rider, which everyone seems pretty jazzed about recently.

It's explained: "Line Rider is a great Flash-based physics toy by “~lsk”. You paint down lines, which define the collision, and then launch a guy on a sled. People have done some amazing things with it (try a YouTube search for “line rider”)."

What's more: "Line Rider is available for free on deviantart. There are two versions available: the web version, and a download version (better framerate, particularly if you’re running Firefox)." Also listed on the page are MIT Sketching and Working Model 2D - also pretty interesting. Yay physics!