Tae Kwan Do Discrepant Event

 

What you need

A wooden slat, and 2 sheets of newspaper

  
 
  What you do      
   
 

a. Place a slat of wood on a desk. 

b. Spread two pieces of newspaper smoothly over the part of the slat resting on the desk.  Make sure the newspaper is flush on the desk with no air gaps. 

c. Strike the overhanging piece of slat, and it will snap in half with the paper remaining in place on the table. 

What you learn

This demonstrates the tremendous pressure exerted on the newspaper and transmitted

to the slat by the atmospheric air, greater than the force striking the slat. 

This differential pressure effect is only true of not air is permitted under most of the newspaper.