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A photometer is an instrument that measures the strength of electromagnetic radiation in the range from ultraviolet to infrared and including the visible...

Field propulsion is the concept of spacecraft propulsion where no propellant is necessary but instead momentum of the spacecraft is changed by an interaction...

Two-point tensors, or double vectors, are tensor-like quantities which transform as Euclidean vectors with respect to each of their indices. They are used...

Windage is a term used in aerodynamics, firearms ballistics, and automobiles that mainly relates to the effects of air (e.g., wind) on an object of interest...

A nanocrystalline (NC) material is a polycrystalline material with a crystallite size of only a few nanometers. These materials fill the gap between amorphous...

In quantum mechanics, the particle in a one-dimensional lattice is a problem that occurs in the model of a periodic crystal lattice. The potential is caused...

In mathematical physics, the Dirac algebra is the Clifford algebra Cl 1 , 3 ( C ) {\displaystyle {\text{Cl}}_{1,3}(\mathbb {C} )} . This was introduced...

In physics, the hydrodynamic quantum analogs refer to experimentally-observed phenomena involving bouncing fluid droplets over a vibrating fluid bath that...

State Route 216 (SR 216) is a 40.4-mile-long (65.0 km) state highway located in the southwestern part of the U.S. state of Georgia. It runs southeast-to-north...

Directional Sound refers to the notion of using various devices to create fields of sound which spread less than most (small) traditional loudspeakers...

In theoretical physics, boundary conformal field theory (BCFT) is a conformal field theory defined on a spacetime with a boundary (or boundaries). Different...

Johannes Andreas Rüdiger (1 November 1673 – 6 June 1731) was a German philosopher and physicist. 1707 Philosophia synthetica 1709, 1722 De sensu veri et...

A rigid line inclusion, also called stiffener, is a mathematical model used in solid mechanics to describe a narrow hard phase, dispersed within a matrix...