HOW ELECTRIC MOTORS WORK
The Machine That Turned Humanity Into a Technological Civilization
Complete Table of Contents
Part I — The Ancient Problem of Motion
1. Why Civilization Needs Machines
2. Human Muscles, Animal Muscles, and the Limits of Biological Power
3. Water Wheels, Windmills, and Steam Engines
4. The Search for a Better Source of Motion
Part II — Understanding Energy
5. What Energy Actually Is
6. The Conservation of Energy
7. Potential Energy and Kinetic Energy
8. Why Energy Can Never Be Created or Destroyed
9. How Nature Converts Energy Between Forms
Part III — The Hidden World of Electricity
10. The Structure of the Atom
11. Electrons: The Tiny Particles Behind Civilization
12. Electric Charge Explained
13. Positive and Negative Charge
14. Electric Fields
15. Voltage: The Pressure of Electricity
16. Current: The Flow of Charge
17. Resistance: The Opposition to Flow
Part IV — Understanding Magnetism
18. What Is a Magnetic Field?
19. Why Magnets Have Two Poles
20. Why Opposite Poles Attract
21. Why Like Poles Repel
22. Earth's Magnetic Field
23. Magnetic Materials
24. Magnetic Domains Inside Iron
Part V — The Birth of Electromagnetism
25. Ørsted's Revolutionary Discovery
26. Ampère's Experiments
27. Faraday's Insights
28. Maxwell's Great Unification
29. Why Electricity Creates Magnetism
30. Why Magnetism Creates Electricity
Part VI — Electromagnets
31. Permanent Magnets vs Electromagnets
32. How a Coil Concentrates Magnetic Fields
33. The Importance of Iron Cores
34. Magnetic Flux
35. Flux Density
36. Magnetic Saturation
37. Practical Engineering Limits
Part VII — Motion and Rotation
38. Force Explained
39. Newton's Laws
40. Torque
41. Rotational Inertia
42. Angular Velocity
43. Angular Momentum
44. Mechanical Power
Part VIII — The Fundamental Principle of Motors
45. Magnetic Fields Produce Forces
46. Turning Force into Rotation
47. Why Motors Naturally Want to Stop
48. The Alignment Problem
49. Continuous Rotation
Part IX — Anatomy of a Motor
50. The Rotor
51. The Stator
52. Windings
53. Bearings
54. Shafts
55. Commutators
56. Brushes
57. Housing and Cooling Systems
Part X — DC Motors
58. How a DC Motor Works
59. Current Reversal
60. Commutation
61. Advantages
62. Disadvantages
63. Applications
Part XI — AC Motors
64. Alternating Current
65. Rotating Magnetic Fields
66. Synchronous Speed
67. Induction
68. Slip
69. Industrial Applications
Part XII — Advanced Motor Physics
70. Back Electromotive Force
71. Inductance
72. Eddy Currents
73. Hysteresis
74. Magnetic Losses
75. Copper Losses
76. Mechanical Losses
Part XIII — Improving Motor Performance
77. Increasing Torque
78. Increasing Speed
79. Improving Efficiency
80. Better Conductors
81. Better Magnets
82. Better Cooling
83. Better Bearings
84. Better Designs
Part XIV — Motors and Civilization
85. Water Pumps
86. Agriculture
87. Transportation
88. Manufacturing
89. Mining
90. Medicine
91. Communications
92. Space Exploration
Part XV — Rebuilding Civilization
93. Why Motors Matter After Collapse
94. The Relationship Between Motors and Generators
95. The Minimum Technologies Required
96. Building an Electrical Economy Again
97. From Motors to Modern Industry
Conclusion
98. The Machine That Changed Humanity Forever
99. Why Understanding Motors Means Understanding Civilization
100. The Future of Electromagnetic Machines
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