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Heinrich Rudolf Hertz (/hɜːrts/ HURTS; German: [ˈhaɪnʁɪç ˈhɛʁts]; 22 February 1857 – 1 January 1894) was a German physicist who first conclusively proved...

In physics, a unified field theory (UFT) is a type of field theory that allows all that is usually thought of as fundamental forces and elementary particles...

In audio engineering, electronics, physics, and many other fields, the color of noise or noise spectrum refers to the power spectrum of a noise signal...

Solar physics is the branch of astrophysics that specializes in the study of the Sun. It intersects with many disciplines of pure physics and astrophysics...

This is a list of laser types, their operational wavelengths, and their applications. Thousands of kinds of laser are known, but most of them are used...

In quantum mechanics, angular momentum coupling is the procedure of constructing eigenstates of total angular momentum out of eigenstates of separate angular...

An optical transistor, also known as an optical switch or a light valve, is a device that switches or amplifies optical signals. Light occurring on an...

The Oh-My-God particle was an ultra-high-energy cosmic ray detected on 15 October 1991 by the Fly's Eye camera in Dugway Proving Ground, Utah, United States...

In physical cosmology, the electroweak epoch was the period in the evolution of the early universe when the temperature of the universe had fallen enough...

In continuum mechanics, plate theories are mathematical descriptions of the mechanics of flat plates that draw on the theory of beams. Plates are defined...

Alexei Yuryevich Smirnov (Russian: Алексе́й Ю́рьевич Cмирно́в; born October 16, 1951) is a neutrino physics researcher and one of the discoverers of the...

Hartmut Zohm (born 2 November 1962) is a German plasma physicist who is known for his work on the ASDEX Upgrade machine. He received the 2014 John Dawson...

Particle tracking velocimetry (PTV) is a velocimetry method i.e. a technique to measure velocities and trajectories of moving objects. In fluid mechanics...

A Fermi resonance is the shifting of the energies and intensities of absorption bands in an infrared or Raman spectrum. It is a consequence of quantum-mechanical...

The photon structure function, in quantum field theory, describes the quark content of the photon. While the photon is a massless boson, through certain...

Aerographene or graphene aerogel is the least dense solid known to exist, at 160 g/m3 (0.0100 lb/cu ft; 0.16 mg/cm3; 4.3 oz/cu yd). The material reportedly...

Dawn Austin Bonnell is the Senior Vice Provost for Research at the University of Pennsylvania. She has previously served as the Founding Director of the...

The Lamb–Chaplygin dipole model is a mathematical description for a particular inviscid and steady dipolar vortex flow. It is a non-trivial solution to...