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Length contraction is the phenomenon that a moving object's length is measured to be shorter than its proper length, which is the length as measured in...

In particle physics, annihilation is the process that occurs when a subatomic particle collides with its respective antiparticle to produce other particles...

In physics, a partition function describes the statistical properties of a system in thermodynamic equilibrium.[citation needed] Partition functions are...

In the modeling of physics, a toy model is a deliberately simplistic model with many details removed so that it can be used to explain a mechanism concisely...

The Schwarzschild solution describes spacetime under the influence of a massive, non-rotating, spherically symmetric object. It is considered by some to...

A pyrometer, or radiation thermometer, is a type of remote sensing thermometer used to measure the temperature of distant objects. Various forms of pyrometers...

The ambient pressure on an object is the pressure of the surrounding medium, such as a gas or liquid, in contact with the object. Within the atmosphere...

Adam Frank (born 1962) is an American physicist, astronomer, and writer. His scientific research has focused on computational astrophysics with an emphasis...

The ampere balance (also current balance or Kelvin balance) is an electromechanical apparatus used for the precise measurement of the SI unit of electric...

In theoretical physics, anti-de Sitter/condensed matter theory correspondence is the program[clarification needed] to apply string theory to condensed...

The preferential alignment is a criterion of an orientation of a molecule or atom. The preferential alignment can be related to the formation of the crystal...

Nanoparticle tracking analysis (NTA) is a method for visualizing and analyzing particles in liquids that relates the rate of Brownian motion to particle...