1F20 Inertia of Rest

Pen in a Bottle

The pen should fall in the bottle.

Pen in a Bottle

Catalog: 
1F20.36
Location: 
Ab3
Demonstrates inertia of rest using a pen carefully balanced on a hoop, that is balanced on a Coca-Cola bottle.

Smash Your Hand

Smash Your Hand

Catalog: 
1F20.20
Location: 
Ab3 (lead brick is in Af6)

Place a lead brick on your hand and hit it with a hammer and you will not feel the blow of the hammer. Repeat the demo substituting a wooden block, but do not hit the block with as much force as before and you will feel the hammer's blow.