Electromagnetic Radiation
H4-52: SPECTRUM ANALYSIS OF MODULATION
Category: H4 Music
Purpose:
Compare and analyze the frequency spectra of various modulated sounds such as tremolo, vibrato, and beats.
H4-51: MODULATION - AM AND FM
Category: H4 Music
Purpose:
Demonstrate AM and FM signal modulation as an introduction to vibrato and tremolo.
L3-18: FOCUSING OF HEAT WAVES - OVERHEAD PROJECTOR
Category: L3 Curved Mirrors
Purpose:
Illustrate focusing of heat in a very dramatic way.
E2-49: PULSAR MODEL - RADIOWAVES
Category: E2 Astronomy
Purpose:
Show the changing field pattern from a rotating dipole.
K8-04: SPEED OF LIGHT
Category: K8 Electromagnetic Waves and Sources
Purpose:
Measure the speed of light
K2-63: DISPLACEMENT CURRENT MODEL
Category: K2 Electromagnetic Induction
Purpose:
Illustrate the geometry for displacement current
I2-12: RADIATION FROM COLD OBJECT
Category: I2 Transfer of Heat
Purpose:
Show radiation from a cold object
K8-42: RADIOWAVES - ENERGY AND DIPOLE PATTERN
Category: K8 Electromagnetic Waves and Sources
Purpose:
Demonstrates transmission of energy in electromagnetic waves. Shows the radiation pattern of the dipole antenna
K8-45 RADIO WAVES FROM SPARK
Category: K8 Electromagnetic Waves and Sources
Purpose:
Demonstrates that a spark contains radio waves
K8-03 LIGHT NANOSECOND
Category: K8 Electromagnetic Waves and Sources
Purpose:
Shows the distance light travels in one nanosecond
K8-01 ELECTROMAGNETIC WAVE - MODEL
Category: K8 Electromagnetic Waves and Sources
Purpose:
Shows the relationship between the electric and magnetic field vectors in a plane-polarized traveling electromagnetic wave
J3-23 FARADAY CAGE - RADIOWAVES
Category: J3 Electric Fields and Potential
Purpose:
Demonstrates that radio waves cannot penetrate a Faraday cage
I2-08 RADIATIVE HEAT TRANSFER
Category: I2 Transfer of Heat
Purpose:
Shows radiation from a hot object
I2-06 THERMOPILE WITH AUDIO OSCILLATOR
Category: I2 Transfer of Heat
Purpose:
Observe infrared radiation
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H4-01: FOURIER SYNTHESIS
Demonstrate Fourier synthesis of complex wave shapes Read More
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H4-04 FOURIER ANALYSIS - DIGITAL OSCILLOSCOPE
Demonstrates the Fourier spectrum of complex waves Read More
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H4-11 SAVART'S DISCS
Demonstrates the relationship of pitch and musical intervals to mechanical vibration frequency Read More
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H4-12: LISSAJOUS FREQUENCY MEASUREMENT
Show how frequencies can be matched using Lissajous figures Read More
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H4-13: PLAYING IN JUST INTONATION
Show musical intervals in just intonation Read More
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H4-14: LISSAJOUS FIGURES - VOICE
Provide a Lissajous type display from a single vocal source Read More
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H4-16: TUNER - KORG
Demonstrate use of an electronic tuner Read More
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H4-17: AUDIOTAPE 16 MIN - MUSICAL TEMPERAMENT
Demonstrate use of an electronic tuner Read More
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H4-18: LISSAJOUS FIGURES WITH SOUND
Demonstrate use of an electronic tuner Read More
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H4-21: EDGE TONES
Illustrate edge tones and the factors that effect their sound Read More
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H4-22: BOTTLE BAND
Demonstrate how edge tones and Helmholtz resonators can be used to create a bottle band Read More
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H4-23: SOUND BOARD - TUNING FORK AND LECTURE TABLE
Demonstrate the effect of a sounding board Read More
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H4-31: VIOLIN
Demonstrate some acoustical features of the violin Read More
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H4-32: VIBRAPHONE
Illustrate how a vibraphone works Read More
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H4-33: ORGAN PIPE
Illustrate how an organ pipe works Read More
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H4-34: GUITAR AND OSCILLOSCOPE
Illustrate how a guitar works Read More
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H4-35: FRENCH HORN
Show what a French horn and other similar instruments, such as the French horn, look like Read More
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H4-36: LIP-BLOWN TUBE
Determine the frequencies and harmonic numbers of the resonances in a plastic tube blown like a trumpet Read More
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H4-37: FLEXIBLE TRUMPET
Demonstrate some acoustical features of the trumpet Read More
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H4-38: CORNET
Demonstrate the features of a cornet Read More
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H4-39: PLASTIC TUBE FLUTE
Show basic features of a very simple flute Read More
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H4-40: PLASTIC TUBE CLARINET
Demonstrate how the clarinet overblows at a musical twelfth Read More
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H4-41: DRUM
Demonstrate a pretty drum Read More
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H4-42 RECORDER
Can hear the sounds of a recorder Read More
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H4-43: UKELELE
Experiment with the increasingly-popular ukelele Read More
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H4-51: MODULATION - AM AND FM
Demonstrate AM and FM signal modulation as an introduction to vibrato and tremolo Read More
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H4-52: SPECTRUM ANALYSIS OF MODULATION
Compare and analyze the frequency spectra of various modulated sounds such as tremolo, vibrato, and beats Read More
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H4-53: MOOG ROGUE SYNTHESIZER
Illustrates a simple analog music synthesizer Read More
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H4-55: YAMAHA DX7S DIGITAL SYNTHESIZER
Demonstrate features of a modern digital synthesizer Read More
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H4-56: SYNTHESIZER INTRODUCTION - VOLTAGE CONTROL OF FREQUENCY
Illustrate a voltage-controlled frequency device Read More
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H4-58: MODULATION - AM RADIO
Show amplitude modulation in in AM radio signals Read More
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H4-64: DISTORTION IN AUDIO AMPLIFIER
Demonstrate distortion due to over-driving an audio amplifier Read More
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H4-65: CROSSOVER NETWORK FOR SPEAKERS
Demonstrate the operation af a crossover network. Read More
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H4-66: CROSSOVER NETWORK - LARGE ADVENT
Show circuit and components of a passive crossover network and how the crossover network functions Read More
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H4-67: CD WITH HOLE
See if a compact disc will play even if it has a small hole drilled through it Read More
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H4-68: MP3 COMPRESSION
Play and compare various MP3 compressions of a short musical CD excerpt Read More
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H4-71: AUDIOTAPE 20 MIN - ACOUSTICS FOR THE MUSIC EDUCATOR
Illustrate some principles of room acoustics as applied to music rehearsal rooms and concert halls Read More
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H4-81: AUDIO CART - COMPLETE AUDIO SYSTEM
Show the various components of a reasonably modern audio system Read More
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H4-91: COMPACT DISC - MULTIMEDIA SOUND
Demonstration of a number of audio effects and source of a variety of musical instrument and other sounds Read More
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H4-92: AUDIO RECORDING - DIGITAL DOMAIN DEMONSTRATION CD
Examples of early digital sound reproduction Read More
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