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William John Macquorn Rankine FRSE FRS (/ˈræŋkɪn/; 5 July 1820 – 24 December 1872) was a Scottish mathematician and physicist. He was a founding contributor...

In fluid dynamics, the drag equation is a formula used to calculate the force of drag experienced by an object due to movement through a fully enclosing...

The sone (/ˈsoʊn/) is a unit of loudness, the subjective perception of sound pressure. The study of perceived loudness is included in the topic of psychoacoustics...

A figure-8 laser is a fiber laser with a figure-8-shaped ring resonator. It is used for making pico- and femtosecond soliton pulses. The typical spectrum...

Olinto De Pretto (26 April 1857 – 16 March 1921) was an Italian industrialist and geologist from Schio, Vicenza. There is claimed by an[additional citation(s)...

Roughness length ( z 0 {\displaystyle z_{0}} ) is a parameter of some vertical wind profile equations that model the horizontal mean wind speed near the...

In the aerodynamics of rotorcraft like helicopters, phase lag refers to the angular difference between the point at which a control input to a rotor blade...

Ulrich Wolfgang Arndt FRS (23 April 1924 – 24 March 2006) was a scientist committed to the development of X-ray crystallography technology and instrumentation...

Brian Henderson (26 March 1936 – 20 August 2017) was an English solid-state spectroscopic physicist whose career included spells at Atomic Energy Research...

Ernst Helmut Brandt (17 September 1941 – 1 September 2011) was a German theoretical physicist. He is best known for working on the Abrikosov vortex lattice...