This product is part of the STUDENT Kit Acoustics (item no.: 1000816)
Product Information: ..
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 in the bulb cause the bulb to act as an acoustic resonator with a highly distinct resonant frequency. The frequency is dependent on the dimensions of the bulb and the tube. With a whole set of Helmholtz resonators it is possible to demonstrate how tones combine to form a tonal mixture.
![Helmholtz Resonator d = 40 mm, 1003522 [U8430330], Replacements](/imagelibrary/U8430330/U8430330_01_Helmholtz-Resonator-d-40-mm.jpg)
![Helmholtz Resonator d = 40 mm, 1003522 [U8430330], Replacements](/imagelibrary/U8430330/U8430330_02_Helmholtz-Resonator-d-40-mm.jpg)
![Helmholtz Resonator d = 40 mm, 1003522 [U8430330], Replacements (Small)](/thumblibrary/U8430330/U8430330_01_50_50_Helmholtz-Resonator-d-40-mm.jpg)
![Helmholtz Resonator d = 40 mm, 1003522 [U8430330], Replacements (Small)](/thumblibrary/U8430330/U8430330_02_50_50_Helmholtz-Resonator-d-40-mm.jpg)
![STUDENT KIT
Acoustics, 1000816 [U8440012], STUDENT KITS](/thumblibrary/U8440012/U8440012_01_140_140_STUDENT-KIT-Acoustics.jpg)
![Helmholtz Resonator d = 34 mm, 1003523 [U8430340], Replacements](/thumblibrary/U8430340/U8430340_01_140_140_Helmholtz-Resonator-d-34-mm.jpg)
![Helmholtz Resonator d = 52 mm, 1003521 [U8430320], Replacements](/thumblibrary/U8430320/U8430320_01_140_140_Helmholtz-Resonator-d-52-mm.jpg)
![Helmholtz Resonator d = 70 mm, 1003520 [U8430310], Replacements](/thumblibrary/U8430310/U8430310_01_140_140_Helmholtz-Resonator-d-70-mm.jpg)
![Metallophone, 1000804 [U8430290], Sound - Accessory](/thumblibrary/U8430290/U8430290_01_140_140_Metallophone.jpg)
![Vibration generator -
for investigating oscillations and resonances, 1000701 [U56001], Oscillations](/thumblibrary/U56001/U56001_01_140_140_Vibration-generator-for-investigating-oscillations-and-resonances.jpg)
![Tuning Forks Kit (440 Hz), 1002612 [U10120], Tuning Forks](/thumblibrary/U10120/U10120_01_140_140_Tuning-Forks-Kit-440-Hz.jpg)
![Accessories Chladni Plate, circular -
for the Vibration Generator, 1000705 [U56005], Oscillations](/thumblibrary/U56005/U56005_01_140_140_Accessories-Chladni-Plate-circular-for-the-Vibration-Generator.jpg)
![Accessories Chladni Plate, square -
for the Vibration Generator, 1000706 [U56006], Oscillations](/thumblibrary/U56006/U56006_01_140_140_Accessories-Chladni-Plate-square-for-the-Vibration-Generator.jpg)
![Tuning Fork 21 Hz with Plotter Pen, 1000805 [U8431030], Tuning Forks](/thumblibrary/U8431030/U8431030_01_140_140_Tuning-Fork-21-Hz-with-Plotter-Pen.jpg)
![Accessories for Spring Oscillations -
for the Vibration Generator, 1000703 [U56003], Mechanical Waves](/thumblibrary/U56003/U56003_01_140_140_Accessories-for-Spring-Oscillations-for-the-Vibration-Generator.jpg)
![Cork Powder, 10 g, 1000815 [U8432850], Sound - Accessory](/thumblibrary/U8432850/U8432850_01_140_140_Cork-Powder-10-g.jpg)
![Microphone probe, long, 1017342 [U8498282], Sound - Accessory](/thumblibrary/U8498282/U8498282_01_140_140_Microphone-probe-long.jpg)
![Stainless Steel Rod 1500 mm, 1002937 [U15005], Rods](/thumblibrary/U15005/U15005_01_140_140_Stainless-Steel-Rod-1500-mm.jpg)
![Accessories for Resonance and Vibration Nodes -
for the Vibration Generator, 1000707 [U56007], Mechanical Waves](/thumblibrary/U56007/U56007_01_140_140_Accessories-for-Resonance-and-Vibration-Nodes-for-the-Vibration-Generator.jpg)
![Vessel for Demonstrating Surface Tension, 1000794 [U8411130], Mechanics of Liquids](/thumblibrary/U8411130/U8411130_01_140_140_Vessel-for-Demonstrating-Surface-Tension.jpg)
![Kundt's Tube, 1000814 [U8432845], Sound](/thumblibrary/U8432845/U8432845_01_140_140_Kundts-Tube.jpg)
![Rolling Pendulum -
a simple mathematical pendulum, 1017332 [U8498293], Oscillations](/thumblibrary/U8498293/U8498293_01_140_140_Rolling-Pendulum-a-simple-mathematical-pendulum.jpg)
![Microphone probe, short, 4008308 [U8498307], Sound - Accessory](/thumblibrary/U8498307/U8498307_01_140_140_Microphone-probe-short.jpg)
![Motor, 12 V DC, 1001041 [U8552330], Mechanical Waves - Accessory](/thumblibrary/U8552330/U8552330_01_140_140_Motor-12-V-DC.jpg)
![Holder for Plug-in Components, 1018449 [U8557220], Magnetic Fields](/thumblibrary/U8557220/U8557220_01_140_140_Holder-for-Plug-in-Components.jpg)