Social science is a major category of academic disciplines, concerned with society and the relationships among individuals within a society.
Continue reading... Classical and Quantum mechanics are the two main fields of mechanics in physics. Classical mechanics came a few hundred years before Quantum mechanics. Subsequently it is less accurate and less reliable then the more recent mechanic field of Quantum mechanics. Despite being outdated, Classical mechanics can still be used for many everyday problems with bigger and slower moving objects.
1 In 1907 and again in 1911, Einstein developed the first quantum theory of specific heats by generalizing Planck's law. 2  His theory resolved a paradox of 19th-century physics that specific heats were often smaller than could be explained by any classical theory.