G4-21: CHLADNI FIGURES - BOWED
- ID Code: G4-21
- Purpose: Show two-dimensional standing waves in a metal plate
- Description:
Sand is sprinkled onto a circular or square thin metal plate, which is then stroked along the edge using a violin bow. The sand moves to nodal lines of the standing wave pattern. Stroking at one point while holding your finger at another point to forces a node at that point, if desired, creating a variety of standing wave patterns.
A nice article describing the Chladni plates at the Whipple Collection wil be found by clicking http://www.hps.cam.ac.uk/whipple/explore/acoustics/ernstchladni/chladniplates/.
- Availability: Available
- References: http://lecdem.physics.umd.edu/images/refs/refsg.htm#G4-21
- Loc codes: G4