Acoustical & Musical Instruments
H3-15: TWIRL-A-TUNE AND VACUUM CLEANER
Category: H3 Standing Sound Waves
Purpose:
Demonstrate standing wave resonances in an open tube.
H3-12: ROARING TUBE - 4 FT
Category: H3 Standing Sound Waves
Purpose:
Demonstrate standing sound waves in air excited by convection currents.
H3-13: ROARING TUBE - 8 FT
Category: H3 Standing Sound Waves
Purpose:
Demonstrate standing sound waves in air excited by convection currents.
H3-11: TUNING FORKS AND RESONANT TUBE
Category: H3 Standing Sound Waves
Purpose:
Illustrate resonance in an air column.
H3-04: KUNDT'S TUBE - STROKED ROD
Category: H3 Standing Sound Waves
Purpose:
Demonstrate standing waves in an air column.
G4-22: CHLADNI FIGURES - OSCILLATOR DRIVEN
Category: G4 Mechanical Waves - Two Dimensional
Purpose:
Show two-dimensional standing waves in a metal plate
G4-21: CHLADNI FIGURES - BOWED
Category: G4 Mechanical Waves - Two Dimensional
Purpose:
Show two-dimensional standing waves in a metal plate
G4-14: SPOUTING BOWL
Category: G4 Mechanical Waves - Two Dimensional
Purpose:
Demonstrate resonance in a dramatic way
G4-13: DRUM HEAD STANDING WAVES
Category: G4 Mechanical Waves - Two Dimensional
Purpose:
Demonstrate standing waves in a circular membrane.
H2-52: BEATS AND RESONANCE - TUNING BARS
Category: H2 Wave Properties of Sound
Purpose:
To demonstrate beats, and to demonstrate resonance between two identical tuning bar resonators.
H4-53: MOOG ROGUE SYNTHESIZER
Category: H4 Music
Purpose:
Illustrates a simple analog music synthesizer
H3-71 STROKED ALUMINUM ROD
Category: H3 Standing Sound Waves
Purpose:
Illustrates longitudinal standing waves in an aluminum rod.
H3-24 OPEN AND CLOSED PIPES
Category: H3 Standing Sound Waves
Purpose:
Demonstrates open and closed tube standing resonances
H3-14 TWIRL-A-TUNE
Category: H3 Standing Sound Waves
Purpose:
Demonstrates standing wave resonances in an open tube
H2-42 DOPPLER EFFECT - TUNING FORK ON STRING
Category: H2 Wave Properties of Sound
Purpose:
Demonstrates Doppler effect
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H2-01: FOCUSING OF SOUND WITH CONCAVE REFLECTORS
Demonstrate how sound waves can be focused by concave reflectors. Read More
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H2-02: PARABOLIC MICROPHONE
Show what a parabolic microphone is and to demonstrate its sensitivity individually. Read More
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H2-03: ACOUSTIC RADAR
Illustrate how RADAR and SONAR work Read More
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H2-11: SOUND LENS
Demonstrate focusing of sound by refraction in a sound lens Read More
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H2-21 AUDIBLE YOUNG'S EXPERIMENT - GROUP LISTENING
Demonstrates interference of sound waves with two coherent sources
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H2-22: INTERFERENCE - TRANSPARENCIES
An optical analog to the interference pattern from two identical sound sources. Read More
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H2-24: AUDIBLE YOUNG'S EXPERIMENT - MIC AND SCOPE
Demonstrate interference of sound with two coherent sound sources in a quantitative way. Read More
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H2-25: QUINCKE'S INTERFERENCE TUBES
Demonstrate interference of sound waves in a perhaps surprising way. Read More
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H2-26: PHASE REVERSAL BETWEEN STEREO SPEAKERS - MUSIC
Demonstrate interference of sound in a dramatic way. Read More
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H2-27: PHASE REVERSAL BETWEEN STEREO SPEAKERS - OSCILLATOR
Dramatically demonstrate interference between two identical sources. Read More
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H2-28: FOURIER SYNTHESIZER - ADDITION OF WAVES
Demonstrate addition of two sine waves with variable phase difference. Read More
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H2-31: ACOUSTIC COLLIMATOR
Demonstrate the effect of frequency on diffraction of sound. Read More
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H2-32: SPEAKER WITH BAFFLE
Demonstrates diffraction and interference of sound waves
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H2-33: SPEAKER AND EXPONENTIAL HORN
Demonstrate the effect of an exponential horn enclosure. Read More
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H2-41 DOPPLER BALL
Demonstrates Doppler effect
Read More
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H2-42 DOPPLER EFFECT - TUNING FORK ON STRING
Demonstrates Doppler effect
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H2-51 BEATS - AUDIO OSCILLATORS, SPEAKER & OSCILLOSCOPE
Hear audio beats and see their wave forms on an oscilloscope
Read More
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H2-52: BEATS AND RESONANCE - TUNING BARS
Demonstrate beats, and to demonstrate resonance between two identical tuning bar resonators. Read More
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H2-53 BEATS - AUDIO OSCILLATORS AND SPEAKERS
Hear beats
Read More
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H2-54: BEATS - MOIRE PATTERN MODEL
Model for beats between mistuned audio oscillators. Read More
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H2-55: BEATS AND RESONANCE - TUNING BOXES
Illustrate beats and resonance. Read More
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