After defining surfaces, Bragg describes the surface properties of a liquid. A series of experiments show what is meant by surface tension and vividly demonstrate how it may be controlled and modified. Bragg then describes the basic laws of friction, illustrating the effect of molecular surface layers in reducing friction and demonstrating the principles of lubrication with the aid of models.
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Full list of Properties of Matter films
Young and the wave theory of light
Reflection, refraction and polarization of light