Glass Ball with a hollow tube close to the outside for the demonstration of resonances mount. The first harmonica is produced by blowing in the opening or with a blow against the cavity. The elasticity of the air in the sphere United to the mass air inert in the form a resonator acoustic tube with its own a marked resonance. The frequency depends on the size of the ball and the tubing. A set of shells of Helmholtz allows to demonstrate how the tones are combined in a composition of sound.
Additional information
| Weight | 0.04 kg |
|---|---|
| brand | Visit the 3B Scientific Store |
| dimensions |