longitudinal momentum
81Cyathus — striatus Conservation status See text …
82Large-group awareness training — LGAT redirects here. For the former airport with ICAO code LGAT , see Ellinikon International Airport. Large group awareness training (LGAT) refers to activities usually offered by groups linked with the human potential movement[1] which claim to …
83Mental disorder — Classification and external resources Eight women representing prominent mental diagnoses in the 19th century. (Armand Gautier) ICD 10 F …
84Quantum field theory — In quantum field theory (QFT) the forces between particles are mediated by other particles. For instance, the electromagnetic force between two electrons is caused by an exchange of photons. But quantum field theory applies to all fundamental… …
85Walter Scott — Infobox Writer name = Sir Walter Scott, 1st Baronet imagesize = 200px caption = Raeburn s portrait of Sir Walter Scott in 1822. pseudonym = birthdate = 15 August 1771 birthplace = Edinburgh, Scotland, Great Britain deathdate = death date and… …
86Adoption — For other uses, see Adoption (disambiguation). Sister Irene of New York Foundling Hospital with children. Sister Irene is among the pioneers of modern adoption, establishing a system to board out children rather than institutionalize them.… …
87Gaussian beam — In optics, a Gaussian beam is a beam of electromagnetic radiation whose transverse electric field and intensity (irradiance) distributions are well approximated by Gaussian functions. Many lasers emit beams that approximate a Gaussian profile, in …
88Surface wave — Diving grebe creates surface waves In physics, a surface wave is a mechanical wave that propagates along the interface between differing media, usually two fluids with different densities. A surface wave can also be an electromagnetic wave guided …
89Demography — Sociology …
90Yarkovsky effect — The Yarkovsky effect is a force acting on a rotating body in space caused by the anisotropic emission of thermal photons, which carry momentum. It is usually considered in relation to meteoroids or small asteroids (about 10 cm to 10 km in… …
