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15 paź 1980 · DOI: https://doi.org/10.1103/PhysRevD.22.1882. The physical interpretation of perturbations of homogeneous, isotropic cosmological models in the early Universe, when the perturbation is larger than the particle horizon, is clarified by defining a complete set of gauge-invariant variables.
James Maxwell Bardeen (May 9, 1939 – June 20, 2022) was an American physicist, well known for his work in general relativity, particularly his role in formulating the laws of black hole mechanics. He also discovered the Bardeen vacuum, an exact solution of the Einstein field equation.
26 mar 2020 · It is presented here in multiple formats: PDF, online, and low-cost print. Beginning with an introduction to physics and scientific processes and followed by chapters focused on motion, mechanics, thermodynamics, waves, and light, this book incorporates a variety of tools to engage and inspire students.
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Free textbooks (aka open textbooks) written by knowledgable scholars are a relatively new phenomenon. Below, find a meta list of Free Physics Textbooks, part of our larger collection 200 Free Textbooks: A Meta Collection .
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