Physics

The micrometre (international spelling as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American spelling), also called micron, metric…

In simple terms, mirror means a smooth and highly polished glass surface, through which images are formed by reflection, as the light falls on it.…

Iron Oxide Nanoparticles Iron oxides are common natural compounds and can also easily be synthesized in the laboratory. Iron oxide nanoparticles are iron oxide particles…

Superparamagnetism is a property occurring principally in small, single-domain magnetic particles without magnetic memory. It is a form of magnetism that appears in small ferromagnetic…

Magnetoelastic filaments Magnetoelasticity is the effect of elastic strain upon the magnetization of a ferromagnetic elastic material (as when the magnetization of a steel spring…

Colloidal Gold A gold colloid is a suspension consisting of sub-micron gold nanoparticles suspended within a solvent, most often water. It is a sol or…

Electrospray Ionization – a soft ionization technique Electrospray ionization (ESI) generates intact gas-phase ions from analytes in the solution for mass spectrometric investigations. It is…

Acoustic levitation uses acoustic radiation forces to counteract gravity and suspend objects in mid-air. It is a method for suspending matter in the air against…

In aerodynamic levitation, solids and liquids are floated in a vertical gas stream. Aerodynamic levitation is the use of gas pressure to levitate materials so…

Casimir Effect – in quantum field theory The Casimir effect is a small attractive force that acts between two close parallel uncharged conducting plates. In…

A clinostat is an apparatus for studying tropisms in plants, usually a rotating disc to which the plant is attached so that it receives an…

A tractor beam is a device with the ability to attract one object to another from a distance. In science fiction, it is a hypothetical…