- Draw bow accross edge of sand-covered plate to reveal nodal
regions. - Located in L02, section C3. Sand is in box with other Chladni
plates, in section C2.
sand
Jamming
- Two ends of a rope are inserted into a cup of loose sand. When pulled up, the rope easily slips out of the sand. If, however, the bottom of the sand-filled cup receives a few tamps from a solid surface (like a table top) the cup can be lifted by the rope.
- Located in L02, Section B-3.