Lectures on some recent advances in physical science : with a special lecture on force / by P.G. Tait.

Date:
1885
Catalogue details

Licence: Public Domain Mark

Credit: Lectures on some recent advances in physical science : with a special lecture on force / by P.G. Tait. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    « LECTURE X. SPECTRUM ANALYSIS. PAGE Change of colour of Light by relative velocity of source and observer. Analogy from sound. Causes of broadening of spectral lines. ' Spectrum of Solar Corona ; of Double Stars ; of Comets. Probable nature of Comets ; of Saturn's rings ; of the Zodiacal Light, . 237 L^^CTURE XL CONDUCTION OF HEAT. Fourier's Mathematical Theory. His Definition of Conducting Power. Analogy between Thermal and Electric Conductivities. Forbes's method and results. Angstrom's method. Penetration of Surface . - temperature into'the earth's crust. Analogy between conduction of heat and conduction of electricity. Diffusion also analogous to these. Diffusion of tnatter, of kinetic energy, and of momentum, . - 265 LECTURE XII. STRUCTURE OF MATTER. Limits of Divisibility of Matter. In physics the terms great and small are merely relative. Various hypotheses as to structure of bodies —Hard Atom-Centres of Force—Continuous but Heterogeneous Structure—Vortex-atoms-[Digression on Vortex-Motion.] Lesage's Ultramundane Corpuscles. Proofs that matter has a grained struc- ture. Approximation to its dimensions from the Dispersion of Light: —from the phenomena of Contact Electricity, LECTURE XIIL STRUCTURE OF MATTER. Approximation to dimensions of grained structure from capillary phenomena-from properties of gases. Mathematical consequences