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Resonance Bowl
Dating from the Song Dynasty (960-1279 A.D.), this bronze basin has two prominent handles and four fish in relief on the bottom, as well as lines emanating from the mouths or tails of the fish. When the handles are rubbed briskly with the palms of the hands, a harmonious sound is heard and standing…
Item: U30001
£ 130.15
Basic Equipment Set for ESR/NMR
…the electron spin resonance (ESR) of an unpaired electron of a DPPH sample, as well as, the nuclear magnetic resonance (NMR) of glycerin, Teflon®, and polystyrene. Resonances are observed via induced transitions through high-frequency pumping of an external magnetic field. Resonance absorption curves…
Item: U18803
£ 572.00
Helmholtz Resonator d = 40 mm
…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 in the bulb cause the bulb to act as an acoustic resonator with a highly distinct resonant frequency. The frequency…
Item: U8430330
£ 7.80
Helmholtz Resonator d = 52 mm
…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 in the bulb cause the bulb to act as an acoustic resonator with a highly distinct resonant frequency. The frequency…
Item: U8430320
£ 9.20
Tuning Fork, 440 Hz, on Resonance Box
Long-sustaining tuning fork mounted on a resonant chamber made of clear grained fir wood. Fork is removable and includes a soft striking hammer (U10122). Specifications: Natural frequency: 440 Hz Length of the tuning fork: approx. 170 mm Resonance box: 180x90x50 mm?
Item: U10121
£ 34.90
Resonance Wire, Ring Shaped
For demonstrating the vibration knots in determination of different frequencies. Wire ring with 4 mm plug. Diameter: 290 mm
Item: U56007
£ 11.40
Set of Tuning Forks, C-Major Chord, on Resonance Boxes
Set of four tuning forks for demonstrating C-major chord. Supplied on a sound box made of clear grained pine for especially long sustain from which the tuning forks can be removed. Includes a soft striking hammer (U10122). Natural frequency, Internal length: c’ = 256 Hz 300 mm e’ = 322 Hz…
Item: U10125
£ 140.40
Helmholtz Resonator d = 70 mm
…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 in the bulb cause the bulb to act as an acoustic resonator with a highly distinct resonant frequency. The frequency…
Item: U8430310
£ 11.30
Helmholtz Resonator d = 32 mm
…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 in the bulb cause the bulb to act as an acoustic resonator with a highly distinct resonant frequency. The frequency…
Item: U8430340
£ 6.90
Pohl's Torsion Pendulum
…their resonance curves at various degrees of damping Phase displacement between the exciter and resonator during resonance Chaotic rotary oscillations For investigating free, forced and chaotic oscillations at various degrees of damping. With slotted scale ring and pointers on resonator and exciter…
Item: U15040
£ 631.15
Lip Whistle
Lip whistle for experiments on pitch as a function of resonance space. Closed wooden whistle with a square cross-section and movable piston, chromatic range from g1 (392 Hz) to g? (794 Hz). Frequency range: approx. 400 Hz –800 Hz Resonance space: approx. 180x24x24 mm3 Length: approx. 550 mm
Item: U15110
£ 37.30
Pair of Tuning Weights
Two tuning weights for changing the frequency of tuning forks for beat experiments; intended for the 440-Hz tuning fork on the resonance box (U10121).
Item: U10119
£ 6.95
