Waves & Sound

Ripple Tank Apparatus

The ideal laboratory apparatus for the study of wave motion in two dimensions. This ruggedly built tank has an unobstructed viewing area of 43 cm x 43 cm. Foam beaches improve the performance of th... More.

Yacker Tracker®

A self-monitoring traffic light sound meter. The green light stays lit until noise in the classroom goes above the set level (determined by teacher), green light then goes off and flashing yellow l... More.

Bell in Vacuum

Nature, of course, abhors a vacuum - and sound waves won’t travel through one. Prove it with a ringing bell inside a sealed glass jar. As air is gradually pumped out of the jar, the bell beco... More.

Ripple Tank

This apparatus allows the study of wave propagation on the surface of a liquid and, in particular, phenomena of reflection, refraction, diffraction, and interference. The waves on the liquid surfac... More.

Ripple Tank for Overhead Projector

Heavy Plexiglas® construction for use with an overhead projector or on the table top. Great for observing propagation, reflection, interference and diffraction of waves. Includes adjustable vi... More.

Adjustable Phase Wave Generator

Designed for use with a ripple tank. Its simplicity makes it reliable and easy to adjust in frequency and for different amplitudes. It can generate straight waves or circular waves from two point s... More.

High-Power Light Source

An inexpensive apparatus for producing a point source or straight line source of light. Ideal for use with a ripple tank. Unit consists of a 150-watt clear bulb mounted inside a flat, black, vented... More.

Adjustable Hand Stroboscope

Designed for use with a ripple tank to “freeze” the wave motion. The unit may be adjusted so that the effective number of slots may be set to any factor of 12. More.

Complete Ripple Tank Apparatus and Accessories

Includes a Ripple Tank (SB13635M), High Power Light Source (SB16609M), and an Adjustable Hand Stroboscope (SB16610M). More.

Deluxe Yacker Tracker®

A self-monitoring traffic light sound meter with remote control. The green light stays lit until noise in the classroom goes above the set level (determined by teacher), green light then goes off a... More.