Very few users toting an iPhone 4S have complained that when they shake it they can only hear two cores rattling inside.

FORBES: Core Wars - What Will Power The iPhone 5?

And check in with The Inside Edge next week when I profile a former congresswoman who would really shake things up.

CNN: A look?at the 9/11 hearing

The screen of the Etch-A-Sketch is glass, and when you shake the Etch-A-Sketch, the powder coats the inside of the glass.

FORBES: How Does An Etch A Sketch Work, Anyway?