Wa-4 Crova's Disc


To demonstrate standing waves and progressive waves.


  • Overhead projector
  • Crova's Discs

Crova's Disc Diagram

Crova's Disc Diagram


Each disc consists of a clear plastic, having non concentric circles ruled upon its surface. The discs are mounted in an aluminium case with a viewing slot, so that the disc may be rotated about its axis in the case.
Both standing and progressive waves may be displayed by placing the appropriate disc on the overhead projector.