Heard of the band OK Go?  They did that video with the treadmills? [oh, yeah, that one]  Well, their latest has had the help of some of the staff at NASA’s Jet Propulsion Laboratory in its production.  See the video and an interview with the engineers here.

Also, you can have a go at building a machine like the one in the video.  The best machines win OK Go concert tickets!  The next UK dates for the band are near the end of July – good luck!