A hand holding a U-shaped tuning fork.

Hand with tuning fork

A hand holding a U-shaped tuning fork.

A pair of hands holding a tube and tuning fork over a resonator.

Hands with tuning fork and tube

A pair of hands holding a tube and tuning fork over a resonator.

An illustration of Marloye's harp, used to show longitudinal vibrations in rods. It is made up a number of steel rods lined up vertically on an oblique-shaped board.

Marloye's Harp

An illustration of Marloye's harp, used to show longitudinal vibrations in rods. It is made up a number…

"Hold a vibrating tuning fork over the mouth of a cylindrical jar about 10 or 18 inches deep, and notive the feebleness of the sound. Pour in water, as shown, and notive that, when the liquid reaches a certain level, the sound suddenly becomes much louder." -Avery 1895

Demonstartion of Resonance Using A Tuning Fork and Water Column

"Hold a vibrating tuning fork over the mouth of a cylindrical jar about 10 or 18 inches deep, and notive…

"Sound siren used to reproduce the sound generated by the tuning fork." -Avery 1895

Siren

"Sound siren used to reproduce the sound generated by the tuning fork." -Avery 1895

A tuning fork on top of a hollow box.

Tuning fork and box

A tuning fork on top of a hollow box.