Page:A history of the theories of aether and electricity. Whittacker E.T. (1910).pdf/13

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Contents.
ix
Page
Young proposes a dynamical theory of light in crystals,
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110
Researches of Malus on polarization,
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111
Recognition of biaxal crystals,
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113
Fresnel successfully explains diffraction,
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113
His theory of the relatire motion of aether and matter,
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115
Young suggests the transversality of the vibrations of light,
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121
Fresnel discusses the dynamics of transverse vibrations
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123
Fresnel's theory of the propagation of light in crystals,
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123
Hamilton predicts conical refraction,
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131
Fresnel's theory of reflexion,
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133

CHAPTER V.

The Aether as an Elastic Solid.

Astronomical objection to the elastic-solid theory: Stokes' hypothesis.
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137
Navier and Cauchy discover the equation of vibration of an elastic solid,
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139
Poisson distinguishes condensational and distortional waves,
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141
Cauchy's first and second theories of light in crystals,
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143
Cauchy's first theory of reflexion,
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145
His second theory of reflexion,
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147
The theory of reflexion of MacCullagh and Neumann,
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148
Green discovers the correct conditions at the boundaries,
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151
Green's theory of reflexion : objections to it,
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152
MacCullagh introduces a new type of elastic solid,
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154
W. Thomson's model of a rotationally-elastic body,
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157
Cauchy's third theory of reflexion: the contractile aether,
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158
Later work of W. Thomson and others on the contractile aether,
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159
Green's first and second theories of light in crystals,
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161
Influence of Green,
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167
Researches of Stokes on the relation of the direction of vibration of light to its plane of polarization,
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168
The hypothesis of aeolotropic inertia,
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171
Rotation of the plane of polarization of light by active bodies,
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173
MacCullagh's theory of natural rotatory power,
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175
MacCullagh's and Cauchy's theory of metallic retlexion,
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177
Extension of the elastic-solid theory to metals,
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179
Lord Rayleigh's objection,
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181
Cauchy's theory of dispersion,
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182
Boussinesq's elastic-solid theory,
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185