Tag: Relativity
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Klein-Nishina Formula
Introduction The Klein-Nishina formula is an essential result in quantum electrodynamics that describes the angular distribution of photons scattered off a single, free electron. Named after Oskar Klein and Yoshio Nishina, who derived the formula in 1928, it takes into account the relativistic and quantum mechanical effects of the scattering process, particularly in the case…
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Mach’s Principle
Introduction Mach’s Principle, named after the physicist Ernst Mach, is a postulate that discusses the relationship between the distribution of matter in the universe and the local behavior of an inertial frame. Mach’s Principle has had a significant influence on the development of general relativity and cosmology, even though it is not precisely defined. Basic…
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Time Dilation
Introduction Time dilation is a fundamental concept in physics that originates from Albert Einstein’s theory of relativity. It describes how the perception of time can vary for two observers depending on their relative motion and gravitational field. Time Dilation in Special Relativity In special relativity, time dilation occurs between two observers if one is moving…