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 Despite being outdated, Classical mechanics can still be used for many everyday problems with bigger and slower moving objects.
The problems with classical physics led to the development of Quantum Mechanics and Special Relativity. Some of the problems leading to the development of Quantum Mechanics are listed here. Black Body Radiation: Classical physics predicted that hot objects would instantly radiate away all their heat into electromagnetic waves.