2x4 and the electrostatic interaction
 
This video shows non-interacting objects that become highly interacting objects.  The video has no extraneous music or narration.  However, chapter 20's subsection, Induced Attractions, will give you a viewpoint for understanding this video.  
 
Tuesday, June 26, 2007
 
 
 
 
 
 
 
Electrostatic interaction