Slow-Motion Slinky Drop

(YouTube link)

When you drop a slinky, which part of it moves faster? When you get a good look at it in slow-motion, it only raises more questions, which physics professor Rod Cross explains. See the rest of the experiment at The Daily What Geek. http://geeks.thedailywh.at/2011/09/25/slow-motion-slinky-drop-of-the-day/ -via mental_floss