"Shiv Dial Sud & Sons"
11
Differential and Sympathetic Tuning Forks
These large alloy tuning forks are designed to demonstrate resonance, beat frequency, and sympathetic vibration.
Complete Ripple Tank Apparatus
This ripple tank is transparent, acrylic plastic and supported in a sturdy plastic frame.
Essential Physics Demo: Refraction/Wave Tank
A mess proof way to demonstrate waves and refraction in water.
Bell Jar and Vacuum Activity Set
The demonstrations feature the fundamentals of vacuum and air pressure as they describe how a pump works and how to find the mass and density of an air sample.
Tuning Fork Set
Both versions of these economy tuning fork sets come with a mallet designed for one hard and one soft end for use with all frequencies of forks.

