- trail electron density
- концентрация электронов в метеорном следе
English-Russian dictionary of electronics. 2015.
English-Russian dictionary of electronics. 2015.
Plasma (physics) — For other uses, see Plasma. Plasma lamp, illustrating some of the more complex phenomena of a plasma, including filamentation. The colors are a result of relaxation of electrons in excited states to lower energy states after they have recombined… … Wikipedia
Wigner crystal — Structure of a two dimensional Wigner crystal in a parabolic potential trap with 600 electrons. Triangles and squares mark positions of the topological defects. A Wigner crystal is the solid (crystalline) phase of electrons first predicted by… … Wikipedia
Rutherford backscattering spectroscopy — Rutherford backscattering spectrometry (RBS) is an analytical technique used in materials science. Sometimes referred to as high energy ion scattering (HEIS) spectrometry, RBS is used to determine the structure and composition of materials by… … Wikipedia
Keweenaw (Rocket launch site) — The Keweenaw rocket launch site was an isolated launch pad located in U.S. state of Michigan’s Keweenaw Peninsula. It was used between 1964 and 1971 for launching rockets for meteorological data collection. NASA along with the University of… … Wikipedia
radiation measurement — ▪ technology Introduction technique for detecting the intensity and characteristics of ionizing radiation, such as alpha, beta, and gamma rays or neutrons, for the purpose of measurement. The term ionizing radiation refers to those… … Universalium
nebula — nebular, adj. /neb yeuh leuh/, n., pl. nebulae / lee , luy /, nebulas. 1. Astron. a. Also called diffuse nebula. a cloud of interstellar gas and dust. Cf. dark nebula, emission nebula, reflection nebula … Universalium
Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… … Universalium
Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… … Universalium
Vitamin K — has also been used as a slang term for ketamine, an unrelated anaesthetic. Vitamin K1 (phylloquinone). Both forms of the vitamin contain a functional naphthoquinone ring and an aliphatic side chain. Phylloquinone has a phytyl side chain … Wikipedia
Trihydrogen cation — Protonated molecular hydrogen, trihydrogen cation, or H3+, is one of the most abundant ions in the universe. It is stable in the interstellar medium (ISM) due to the low temperature and low density of interstellar space. The role that H3+ plays… … Wikipedia
Heavy water — Not to be confused with hard water or tritiated water. Deuterium oxide IUPAC name … Wikipedia