Physics

Symmetry in Physics is the concept that the properties of particles such as atoms and molecules remain unchanged after being subjected to a variety of…

Spacetime is a  single concept that recognizes the union of space and time, which posited by Albert Einstein in the theories of relativity (1905, 1916).…

Vacuum is commonly taken to mean pressures below, and often considerably below, atmospheric pressure. It refer to an actual imperfect vacuum as one might have…

Mesoscopic Physics addresses fundamental physical problems which occur when a macroscopic object is miniaturized. It deals with the physcics of small condensed objects. It is…

Fundamental Interaction is the four basic forces—gravitational, electromagnetic, strong, and weak—that govern how objects or particles interact and how certain particles decay.  It is characterized…

Causal Closure is referred to as the ‘Completeness of Physics’. For physics to be causally closed, all physical events must be due to physical causes.…

Causality in Physics is the continuity of the cause-effect connection. It is never broken, it extends eternally from one link to another. It means that…

Arrow of Time is the one-way direction of increasing entropy required by the second law of thermodynamics. This is also known as the “thermodynamic arrow.”…

Philosophy of Physics is less an academic discipline—though it is that—than an intellectual frontier across which theoretical physics and modern Western philosophy have been informing.…

Objective Collapse Theory is realism about the wave-function, where all branches are equally real. It also known as quantum mechanical spontaneous localization models (QMSL), are…

Absolute Time and Space is owed to individuals like Sir Isaac Newton, a man whose theories came to form the basis of modern physics. Though…

Oscillator Linewidth is a measure of the width of the band of frequencies of radiation emitted or absorbed in an atomic or molecular transition. The…