PURPOSE: To illustrate inertia of rest.

DESCRIPTION: A large-tip felt pen is balanced on a 12" embroidery hoop, which in turn is balanced on a wide-mouth bottle. Yanking the hoop out from under the pen by the leading side allows the pen to fall straight downward into the bottle. Click your mouse on the photograph above to see an mpeg video of the action.

SUGGESTIONS: Balancing this thing requires some practice and/or skill!!

REFERENCES: (PIRA 1F20.36) See Demonstration Reference File for further description of this demonstration.

EQUIPMENT: Bottle, 12" embroidery hoop, and pen,

SETUP TIME: None.