• Damages hearing
• Makes it more difficult to hear genuinely important signals
• Impedes both physical and mental work
• Disturbs and adversely affects well being
• Disturbs relaxation and sleep
Lip whistle for experiments on pitch as a function of resonance space. Closed wooden whistle with a round cross-section and movable piston, chromatic range from g1 (392 Hz) to g² (794 Hz).
Frequency range: approx. 400 Hz –800 Hz ...
Metallophone for demonstrating a C major scale from c² to g². Note labels, frequencies and frequency ratios are printed on the instrument. With striking hammer.
Dimensions: approx. 320x210 mm²
Weight: approx. 510 g
Hollow glass bulb with a narrow tube leading out for demonstrating acoustic resonance. The fundamental oscillation is generated by blowing into the opening or banging on the outside of the bulb.
The elasticity and inertial mass of the air ...
A wooden box open at both ends, with a clamping mechanism for a string to demonstrate the relationship between pitch and string length and the dependence of pitch on string tension. Includes an indicator for the tensioning force, as well as ...
Speaker that approximates to being a point source for excitation of Kundt tube (1000814), for example.
Frequency range: 100 Hz – 20 kHz
Max. load capacity: 10 W
Impedance: 8 Ω
Shaft: 10 mm dia.
Dimensions: 100x135x80 mm³
Weight: approx ...
Ideal sound source for acoustics experiments in the frequency range 60 Hz to 23 kHz. Includes connecting lead with 4 mm safety plugs.
Frequency range: 60 Hz to 23 kHz (-10 dB)
Power capacity: 100 W (as per IEC 268-5)
Impedance: 4 &Omega ...
Glass tube for demonstrating standing sound waves and calculating wavelengths of sound using cork powder in a method devised by Kundt.
Cork powder is spread evenly throughout the tube by means of a filler chute. Then a sound source, e.g. a ...
Universally deployable digital meter used to determine the sound level of any number of acoustic sources across a wide sound range. Device is housed in a robust plastic casing with integrated calibration signal and large LCD display for easy ...
The Demonstration Monochord investigates the relationship between the pitch of a sound and the length of the string. Also investigate overtones formed by harmonic waves with intermediate nodes and the dependence of the pitch on string tension ...