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Index
A
Abbe, Ernst (see: Lens) Aberration 3 Absorption of light 3 Acoustics 3
Afterglow 3 Air molecules
(see: Sound waves) Alto 4
Amplifier 4 Amplitude 4 Anechoic chamber 4 Angle of incidence 4 Angle of reflection 4 Angle of refraction 4 Aperture 5
Aurora 5 B
Barrel distortion (see: Aberration)
Bass 5
Beam of light 5
Beat 5
Bifocals (see: Eyeglasses) Binoculars 6 Bioluminescence 6 Black
(see: Monochromatic light; Primary colours; Reflection; Skylight)
Blue filter (see: Colour filters)
Blue light (see: Scattering of
light; Skylight; Sunlight) Brass 6
Brightness 6
Bulb (see: Electric light)
C
C6
Camera 7
Candela 8
Candle power 8
Colour 8
Colourants 8 Colourblindness 8 Colour filters 8 Colourmixing 8–9 Colour of light sources 9 Colourvision 9
Colour wheel
(see: Primary colours) Complementary colours 9 Concave lens 9
Concave mirror 9
Cone 10
Contact lenses 10 Contralto (see: Alto) Converging lens 10 Convex lens 10
Convex mirror 10 Cornea 10
Critical angle 11
Cyan (see: Colour mixing;
Light; Primary colours; Spectrum)
D
Dead acoustics (see: Acoustics)
Damping 11
Decibel 11
Decay 11
Depth of field 11 Diffraction of light 12 Diffraction of sound 12 Dispersion of light 12 Distortion of sound 12 Diverging lens
(see: Concave lens) Dome 12
Doppler effect of light 12 48
Doppler effect of sound 12 Driver (see: Loudspeaker) Dropout 12
Dye 13
Dynamic range 13 E
Ear 13
Echo 14
Einstein’s theory of relativity
(see: C) Electricity
(see: Electric light; Light energy; Photoelectric effect)
Electric light 14
Energy (see: Light energy) Eye, eyesight 14–15 Eyeglasses 16
F
Farsightedness
(see: Convex lens; Eyeglasses)
Fibre optics 16–17 Fick, Adolf
(see: Contact lenses) Film (see: Camera)
Filters (see: Colour filters) Fish-eye lens (see: Camera) Flashlight
(see: Beam of light) Fluorescence 17 f-number(f-stop) 17 Focal length (see: Focus) Focal plane (see: Focus) Focus 17
Fraction (see: f-number) Franklin, Benjamin
(see: Eyeglasses) Frequency 18
Fresnel, Jean-Augustin
(see: Diffraction of light;
Fresnel lens; Lighthouse) Fresnel lens 18 Fundamental 18
G
Galileo (see: Lens; Telescope) Glasses (see: Eyeglasses) Green filter
(see: Colour filters) H
Harmonic 18–19 Hearing 19 Herschel, William
(see: Infrared light;
Telescope) Hertz, Heinrich
(see: Hertz – Hz) Hertz (Hz) 19
Hi-fi 19
High-fidelity (see: Hi-fi) Hue 19
Human voice 19 I
Imaginary image 19 Incandescence,
incandescent light 19 Index of refraction 20 Infrared light 20 Interference 20
Iris 20 K
Kepler (see: Telescope) L
Lamp 20 Laser 20–21
LED 21 Lens 21–22 Light 22 Light bulb
(see: Electric light) Light-emitting diode
(see: LED)
Light energy 23 Light-gathering power 23 Lighthouse 23
Lighting 24
Light ray (see: Ray)
Light sources, colour (see:
Colour of light sources) Light waves 24–25 Light-year 25
Live acoustics
(see: Acoustics) Loudspeaker 26 Luminescence 26 Luminous 26–27
M
Mach, Ernst
(see: Sonic boom)
Mach number
(see: Sonic boom)
Magenta (see: Colour mixing;
Primary colours) Magnification 27 Maiman, Theodore M.
(see: Laser) Microscope 27 Mid-range 27
Mirage 28
Mirror 28–29 Monochromatic light 29 Mordant (see: Dye) Munsell system 29 Musical instrument 29 Musical tone
(see: Harmonics; Tone) Myopia (see: Concave lens;
Photoelectric effect 32 Photon 32
Pigment 32 Pincushion distortion
(see: Aberration) Pinhole camera
(see: Camera) Pink noise 32 Pitch 32 Polarised light 33 Polaroid filter
(see: Colour filters) Primary colours 34 Prism 34–35
Pupil (see: Eye, eyesight) Pythagoras
(see: Musical instrument) R
Rainbow 35
Raindrop (see: Lens)
Ray, ray diagram 36
Real image 36
Red filter (see: Colour filters) Red light (see: Absorption
of light; Colour of light sources; Hertz (Hz); Infrared light; Refraction of light; Spectrum)
Red shift (see: Doppler effect of light)
Reed 36–37 Reflected light
(see: Light; Reflection;
Transmitted light) Reflection 37–38 Refraction of light 38–39 Refraction of sound 39 Refractive index
(see: Index of refraction) Relativity (see: C) Resolving power 39 Resonance 39
Retina 39 Reverberation 39
Rods (see: Eye, eyesight;
Retina; Vision) S
Saturation 39
Scale, musical (see: Musical
instrument; Octave) Scattering of light 39–40 Schmidt (see: Telescope) Shadow 40
Shore, John
(see: Tuning fork)
Shortsightedness (see: Eyeglasses)
Skylight 40 Snow (see: Noise) Solar power
(see: Light energy)
Sonar (see: Ultrasound) Sonic boom 40
Sound 41
Sound level 41 Soundproofing 42
Sound waves 42–43 Southern lights (see: Aurora) Speaker (see: Loudspeaker) Spectacles (see: Eyeglasses) Spectrum 43
Speed of light 43
Speed of sound 44
Static (see: Noise)
Sunlight 44
T
Telephoto lens
(see: Camera; Focus)
Telescope 44–45 Tenor 45
Timbre 45
Tone 45 Transmitted light 46 Treble 46
Tuning fork 46 Tuohy, Kevin
(see: Contact lenses) Tweeter 46
U
Ultrasound, ultrasonics 46 Ultraviolet filter
(see: Colour filters) Ultraviolet light 46
V
Velocity of light
(see: Speed of light)
Violet light (see: Light; Spectrum)
Virtual image
(see: Imaginary image)
Vision 46 Vocal chords
(see: Human voice) Voice (see: Human voice)
W
Watt 46–47
Wavelength 47
Waves (see: Light waves;
Sound waves) Whispering gallery
(see: Reflection) White light 47 White noise 47 Wide-angle lens
(see: Camera; Focus) Wind instrument 47 Windpipe (see: Human voice) Woodwind 47
Woofer 47
Y
Yellow (see: Colour mixing; Colour of light sources; Complementary colours; Hue; Lamp; Light; Primary colours; Rainbow; Scattering of light; Skylight; Spectrum; Sunlight)
Z
Zeiss, Carl (see: Lens) Zoom lens (see: Camera)
Eyeglasses) Newton, Sir Isaac
(see: Colour mixing; Complementary colours; Dispersion of light; Primary colours; Prism)
Newton’s colour circle
(see: Colour mixing; Complementary colours; Primary colours)
Newton’s rings
(see: Interference)
Noise 30
Northern lights (see: Aurora)
O
Objective lens
(see: Binoculars; Microscope; Resolving power)
Octave 30 Optics 30 Orange filter
(see: Colour filters) Oscillation (see: Frequency) Overtone 30
P
Parabolic mirror (see: Mirror)
Parsec (see: Light-year) Percussion 30–31 Period 30
Periscope 32 Phosphorescence 32 Phosphors
(see: Fluorescence)
N