Physics

Cavity optomechanics is a branch of physics that focuses on the interaction between light and mechanical objects on low-energy scales. It is a field of…

The acoustic contrast factor is a number used to describe the relationship between the densities and the sound velocities (or, equivalently because of the form…

Scientists from KAUST have shown how small semiconductor lasers may be easily modified to make them more useful for lighting and holography. The study has…

Radiation pressure (also known as light pressure) is the mechanical pressure exerted on any surface as a result of the object’s momentum exchange with the…

Quantum interference refers to the phenomenon in quantum mechanics where the wave nature of particles leads to constructive or destructive interference. It is a fundamental…

Acoustic levitation is a fascinating phenomenon that involves suspending and manipulating objects in mid-air using sound waves. It is a technique for suspending matter in…

Magnetic levitation (maglev) or magnetic suspension is a method of suspending an object using only magnetic fields as support. It is a technique for suspending…

Scientists noticed a lightning discharge in the early 2000s that produced X-rays with high energy photons similar to those used in medical imaging. Although scientists…

A plasma jet engine, also known as a pulsed plasma thruster (PPT), is a type of electric spacecraft propulsion. It is an electric propulsion system…

A vacuum arc thruster (VAT) is an electric spacecraft propulsion system. It is a type of electric propulsion system used for spacecraft propulsion. It is…

When the surfaces of metal electrodes in contact with a good vacuum begin to emit electrons, either through heating (thermionic emission) or in an electric…

Electrostatic levitation is the process of levating a charged object using an electric field to counteract the effects of gravity. It is a technique that…