Oscillating Eggs

This video from the University of Nottingham is for the students in Miss Judy's class last year, who inquired into energy, and made their own videos.

Text from the YouTube page:

Uploaded by  on Apr 20, 2011
Coupled Oscillators, or pendulums, are demonstrated by Professor Roger Bowley as part of little Easter series. He's using creme eggs, of course..

Energy Explained Part 1 from ISOCS on Vimeo.

(The pendulums appear at about minute 1.40) The other two Energy videos from class are Energy Explained Part 2, and Energy Explained Part 3