9780123918789

A deep yet accessible analysis of the physics of light and sound, and how our eyes and ears detect them, is not only intellectually enjoyable, but also useful to understand and interpret the world in which we live, all the phenomena that take place around us, and how we perceive them. In short, how we interface with our planet, its inhabitants, and their creations. Understanding the physics of light and sound may also increase the appreciation for works of art and for art itself, and even stimulate the artists among the readers to deepen their knowledge of their media, of how people interface with them, and perhaps improve their art production. * Offers an alternative route to science literacy for those interested in the arts, music and photography * Popular science book with wide readership beyond the classroom at an accessible level * Material covered at a level appropriate for self-study or as a complementary textbook * Companion website for Instructors available in Spring 2008

Pupa Gilbert is a Professor of Physics at the University of Wisconsin-Madison and a surrealist painter. She is a physicist with passionate loves for biology and for modern art. She studied at the first University of Rome, worked as a staff scientist at the Italian National Research Council and at the eole Polytechnique F?d?rale de Lausanne until she joined the University of Wisconsin in 1999. Her current research focuses on biominerals, including mother-of-pearl, sea archin skeletons and the mechanisms leading to their formation. She pioneered the use of synchrotron spectromicroscopy in biology and medicine. She won "The Outstanding Young Persons (TOYP) of the World" award in 1997, and was knighted in 2000 for her contribution to the field of Biophysics. She leads a dynamic and diverse research group. She teaches "Physics in the Arts" and "Microscopy of Life", and in 2011 won the UW-Madison Distinguished Teaching Award. She lives in Madison and in Berkeley with her husband Ben. Willy Haeberli is a Professor of Physics and Steenbock Professor of Natural Sciences Emeritus at the University of Wisconsin-Madison, He was educated in Switzerland and received a Ph.D. in Nuclear Physics at the University of Basel. He taught at the University of Wisconsin for 50 years and was honored for his leaching of undergraduates not majoring in physical sciences and for his research. He received the Bonner Prize in Nuclear Physics, and the Alexander von Humboldt Senior Scientist Award. He was elected to the American Academy of Arts and Sciences in I988 and to the National Academy of Science in 2002. In collaboration with 40 Ph.D. students whose research he has guided, he developed new methods to produce spin-polarized beams and targets and used them to study interactions in nuclear and high-energy collisions.

Introduction	p. xi
Light and Sound	p. xi
Light and Light Waves	p. 01
Speed of Light	p. 05
Electromagnetic Spectrum	p. 06
Polarization	p. 07
Reflection and Refraction	p. 10
Specular Reflection of Light	p. 10
Refraction of Light	p. 14
Total Internal Reflection	p. 17
Reflection and Refraction in Diamonds	p. 21
The Rainbow25
Questions	p. 27
Lenses	p. 30
The Prism	p. 30
Converging and Diverging Lenses31
Focal Length	p. 33
Images?Real and Virtual	p. 36
Three Easy Rays	p. 39
The Lens Formula	p. 41
Note on Magnification	p. 45
Lens Aberrations	p. 47
Chromatic Aberrations	p. 48
Spherical Aberration	p. 49
Questions	p. 52
The Eye	p. 56
Accommodation	p. 58
Eyeglasses	p. 60
Nearsighted Eye	p. 61
Farsighted Eye	p. 62
Astigmatic Eye	p. 62
Photography	p. 63
The Camera	p. 63
Focusing the Camera	p. 64
	p. 67
Choosing the Aperture	p. 68
Depth of Field	p. 69
Why the/Number?	p. 70
The Film	p. 71
Digital Photography	p. 75
Putting it AH Together: Taking a Photograph	p. 76
Questions	p. 80
Color and Color Vision	p. 82
Color	p. 82
Color Sensitivity of the Eye	p. 84
Physical and Psychological Color	p. 89
Color: Hue, Saturation, and Brightness	p. 90
Light Interaction with other Objects	p. 92
Scattering or Diffuse Reflection	p. 92
Questions	p. 98
Additive Color Mixing	p. 99
Primary Colors	p. 99
Adding Primary Colors	p. 100
The Color Triangle	p. 103
Low-Brightness Colors	p. 107
Spectral Colors	p. 107
Non-Spectral Colors	p. 112
Summary	p. 113
Additive Color Mixing in Painting	p. 144
Questions	p. 117
Subtractive Color Mixing	p. 118
Filters	p. 118
Subtractive Primary Colors	p. 120
Subtractive primaries	p. 122
Color Photography	p. 124
Pigments	p. 125
Change in Saturation	p. 128
Why Do Blue and Yellow Make Green?	p. 130
Change in Hue	p. 131
Questions	p. 134
Color-Generating Mechanisms	p. 136
Illuminating Light	p. 136
Pigments	p. 136
Structural Color: Iridescence	p. 137
More Color-Generating Mechanisms Due to Iridescence	p. 139
Color in Gemstones	p. 142
Mineral Color Due to Charge Transfer	p. 144
Mineral Color Due to Color Centers	p. 144
Color in Gems Due to Band Gap Absorption of Light	p. 145
Periodic Oscillations	p. 148
Displacement Graph: Positions x Changes with Time t	p. 151
The Period T and the Frequency f	p. 153
Large and Small Numbers	p. 154
Speed of Motio	p. 154
Questions	p. 156
Simple Harmonic Motion	p. 158
The Spring Constant	p. 160
Oscillation Frequency for Simple Harmonic Motion (SHM)	p. 161
Wave Shape of Simple Harmonic Motion	p. 163
Phase Angle	p. 165
Questions	p. 166
Damped Oscillations and Resonance	p. 168
Damped Oscillations?The Concept of "Damping Time"	p. 168
Resonance	p. 170
Build-up and Decay of Musical Tones	p. 175
Applications in Music	p. 175
Resonators in Musical Instruments	p. 175
Questions	p. 177
Adding Sound Sources: Beats and Harmony	p. 179
Principle of Superposition	p. 179
Two Pure Tones of the Same Frequency	p. 180
Beats	p. 182
Harmony	p. 184
For the Fun of It: Lissajous Figures	p. 185
Questions	p. 188
Sound waves	p. 190
Propagation of a Pulse	p. 190
Longitudinal and Transverse Waves	p. 192
Sound Waves in Air Are Longitudinal Waves	p. 193
Speed of Sound in Air	p. 195
Wavelength and Frequency	p. 196
Relevance to Size of Instruments or Loudspeakers	p. 197
Sound Propagation	p. 198
Interference of Sound Waves	p. 199
Concert Hall Acoustics	p. 201
Questions	p. 205
Sound Perception: Pitch, Loudness, and Timbre	p. 206
Ludness and Amplitude	p. 207
Loudness and Frequency	p. 210
Pitch Discrimination	p. 213
The Ear	p. 214
The Parts of the Ear	p. 214
Place Theory of Pitch Perception	p. 216
What Do the Auditory Nerves Tell the Brain?	p. 217
Vibration of Strings	p. 220
Single Modes	p. 220
Higher Modes	p. 222
Traveling Versus Standing Waves	p. 223
The Voicing Formula225
How Do Modes Relate to Music?	p. 226
Damping of Higher Partials	p. 227
Plucked Strings: Missing Partials	p. 227
Playing Harmonics	p. 228
Real Strings Have Some Stiffness	p. 228
Questions	p. 229
Pipes	p. 231
Pressure Pulse in a Pipe	p. 231
Reflections in Open and Closed Pipes	p. 232
Boundary Conditions	p. 233
Standing Waves in Open Pipes	p. 233
Fundamental Frequency of Open Pipe	p. 234
Higher Modes of Open Pipe	p. 235
Fundamental Frequency of Closed Pipe	p. 237
Higher Modes of Closed Pipe	p. 238
Playing Tunes on Wind Instruments: Fingerholes and Overblowing	p. 240
Other Shapes	p. 240
Acoustic Length	p. 241
Questions	p. 241
Fourier Analysis	p. 243
The Fourier Theorem	p. 243
Sound Spectrum	p. 244
Fourier Analyzer (Sound Analyzer)	p. 249
Fourier Synthesis	p. 251
Why Can't We Synthesize a Stradivari?	p. 252
Questions	p. 254
Musical Scales	p. 256
Musical Intervals	p. 257
Consonance (Harmony): Simple Number Ratios	p. 257
The Major Triad	p. 259
Constructing a Scale: The Just Scale	p. 260
Whole and Half Tone Intervals	p. 263
Names of Intervals	p. 264
Transposing: Why Black Keys?	p. 266
Perfection Sacrificed: The Tempered Scale	p. 267
Major and Minor Scales	p. 273
The Natural Scale	p. 274
Questions	p. 275
Musical Instruments	p. 275
Structure of Musical Instruments	p. 275
Excitation Mechanism	p. 276
Playing aTune	p. 278
Questions	p. 283
Solutions to Problems	p. 284
Index	p. 307
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Physics in the Arts

Physics in the Arts

0123918782

Summary

Author Biography

Table of Contents

Supplemental Materials