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0 Mathematics
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1 Mechanics (point systems)
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2 Mechanics (rigid body)
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3 Continuum mechanics
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4 Relativity
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5 Oscillations and waves
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6 Electricity
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7 Quantum physics
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8 Thermodynamics
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9 Properties of matter
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9.1 Thermal properties
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9.2 Mechanical properties
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9.3 Liquids: viscosity and capillarity
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9.4 Electrical properties: dielectrics, piezos
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9.5 Magnetic properties: para-, dia-, and ferromagnetism
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Magnetic needle models
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Curie point of Fe and Ni
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Hysteresis disappears at 55 °C
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Copper-nickel wheel
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Barkhausen effect
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Magnetic domains
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Ferromagnetic hysteresis
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Hard drive
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Diamagnetism and paramagnetism
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Duo magnet
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Pyrrhotite sphere
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Adiabatic demagnetisation
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Magnetostriction effect in nickel rod
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Floating graphite flake (diamagnetism)
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Breaking magnets
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9.6 Conduction in solids: semiconductor etc.
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9.7 Electrolytic conduction
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9.8 Conduction in vacuum and gases: particle beams and plasma
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9.9 Superconductivity
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9.10 Optical properties: absorption etc.
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10 Nuclear and particle physics
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11 Special areas
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12 Instabilities and chaos
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13 Videos
Magnetic needle models
Experiment no.: 9.5.1
Magnetic needles mounted in hexagonal and cubic configurations enable Weiss domains to be represented macroscopically.
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Images for this experiment
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Cubic model
Cubic model with external magnetic field
Hexagonal model
Hexagonal model with external magnetic field