The Theory of Heat Radiation

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This book presents the lectures delivered at the University of Berlin during the winter semester of 1906-07, focusing on the author's investigations into the theory of heat radiation, which began a decade earlier. Initially aimed at compiling his research results, the work evolved to include foundational principles, starting with Kirchhoff's Law on emitting and absorbing power. The author endeavors to create a comprehensive introduction to radiant heat theory based on thermodynamic principles. The treatment begins with established experimental laws of optics and progressively incorporates electrodynamics and thermodynamics, addressing issues such as spectral energy distribution and irreversibility. The author frequently diverges from traditional methods when necessary, particularly in deriving Kirchhoff's laws, calculating Maxwell's radiation pressure, and generalizing Wien's displacement law for various spectral energy distributions. Personal research findings are integrated throughout, with a list provided at the book's conclusion for reference and comparison. Forgotten Books, the publisher, specializes in reproducing significant historical works, utilizing advanced technology to preserve the original format while correcting most imperfections found in aged copies.