Bed of nails

1F20.25 • A+20+20

diagram for demo

Sledge Hammer and Large Mass. A large Mass (18.95 Kg) is placed on the supine Professor's abdomen. A student strikes the mass with a sledge hammer. Because the mass has a lot of inertia, and the force is distributed over a large area,-the professor sustains little damage.

Related Demos

1F20.34 Card snapped from under a weight by a leaf spring. 1F20.30 Tablecloth yanked out from under dishes. 1F20.10 Breaking thread above and below weight.
A+20+25 Inertia demonstration using hammer and anvil A+20+0 Card snapped from under a weight by a leaf spring. A+20+5 Tablecloth yanked out from under dishes. A+20+10 Breaking thread above and below weight.