Egg timer, Rotisserie, and a GoPro HD Camera. It's not a riddle, but that's what Vimeo member Tony Rodriguez used as the recipe for making this DIY Motion Controlled Panning Timelapse rig. Not the first time i've seen a GoPro on a simple Egg Timer, but this I believe is the first time i've seen it put onto a Motion Controlled Slider. The whole setup is a Go Pro 960 mounted on an egg timer and a homemade dolly (igus slider) and using a Battery Rotisserie Grill Motor that moves 2.5 RPM (revolutions per minute). A few images of the rig (below), but if you need more information you can holla at Tony here: https://vimeo.com/18331363

Checked around eBay and this might the same battery operated motor being used. Very clever use of this motor, and i'm sure this will drum up new DIY ideas to use this in other projects:

Rotisserie Battery Powered Grill Motor