Template:Motd/2011-09-17 (en)

A demonstration of "center of gravity" during a 2007 demolition.

 Template:Motd/2011-09-17

This is the English translation of the Media of the day description page from 17 September 2011.

Descriptions in other languages:

• Motd/2011-09-17 (en)
• Motd/2011-09-17 (fr)
• Motd/2011-09-17 (ro)
• Motd/2011-09-17 (zh-hans)