Needs New Photo
K1-11: CATHODE RAY TUBE - DEFLECTION BY CURRENT
Category: K1 Forces on Moving Particles
Purpose:
Demonstrate visually the force between two parallel currents.
K1-04: FORCE ON CURRENT IN MAGNETIC FIELD - PORTABLE
Category: K1 Forces on Moving Particles
Purpose:
Demonstrate the force on a current-carrying wire in a magnetic field.
H6-01: FOURIER ANALYSIS OF VOICE
Category: H6 The Voice
Purpose:
Determine the Fourier spectrum of various steady-state spoken and sung vocal (vowel) sounds.
H4-55: YAMAHA DX7S DIGITAL SYNTHESIZER
Category: H4 Music
Purpose:
Demonstrate features of a modern digital synthesizer.
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.
J1-02: TRIBOELECTRICITY - WATER JET IN AIR
Category: J1 Electrostatic Charge and Force
Purpose:
Illustrate triboelectricity.
H5-31: DIPLACUSIS AND BINAURAL BEATS
Category: H5 The Ear
Purpose:
Demonstrate individually the phenomena of binaural beats and diplacusis.
H5-19: SUM AND DIFFERENCE TONES
Category: H5 The Ear
Purpose:
Quantitatively demonstrate sum and difference tones.
H5-17: WAVETEKS AND AUDIO CART - QUALITY BEATS
Category: H5 The Ear
Purpose:
Demonstrate second order or quality beats.
H5-15: EFFECT OF HARMONIC CONTENT ON TONE QUALITY
Category: H5 The Ear
Purpose:
Illustrate Ohm's Law of Hearing, and to hear the sounds of complex waves produced by the Fourier Synthesizer.
H5-12: WAVETEKS AND AUDIO CART - CRITICAL BAND
Category: H5 The Ear
Purpose:
Demonstrate the effect of the critical band on the sound of two simultaneous sine waves.
H5-11: WAVETEK AND AUDIOCART - FREQUENCY RANGE OF HEARING
Category: H5 The Ear
Purpose:
Demonstrate the approximate frequency range of human hearing.
L6-42: DISTORTION AND CORRECTION
Category: L6 Lenses
Purpose:
Illustrate pincushion and barrel distortion and correction thereof.
L6-35: CHROMATIC ABERRATION - POINT SOURCE AND 20 CM LENS
Category: L6 Lenses
Purpose:
Show the effect of chromatic aberration in a lens.
L6-14: IMAGE OF CONVEX LENS - WITH AND WITHOUT BAFFLE
Category: L6 Lenses
Purpose:
Encourage thought regarding how an image is formed.
L6-08: REAL IMAGE OF CONVERGING LENS - LIGHT BULB
Category: L6 Lenses
Purpose:
Show the real image of a converging lens.
L6-07: MICROWAVES - LENS
Category: L6 Lenses
Purpose:
Demonstrate that a paraffin lens can focus microwaves.
H1-44: ULTRASONIC MOTION DETECTOR WAVE FORM
Category: H1 Nature of Sound
Purpose:
Show the wave form of the ultrasonic signal created by the ultrasonic motion detector.
H1-31: SOUND LEVEL METER
Category: H1 Nature of Sound
Purpose:
Demonstrate use of a sound level meter.