solid nucleus

См. также в других словарях:

• Nucleus — may refer to: Nucleus (atomic structure), the very dense region at the center of an atom Cell nucleus, the control center of a cell, which contains the cell s chromosomal DNA Nucleus (neuroanatomy), a cluster of neurons in the central nervous… …   Wikipedia

• Solid-state nuclear magnetic resonance — (NMR) spectroscopy, characterized by the presence of anisotropic (directionally dependent) interactions.IntroductionBasic conceptsA spin interacts with a magnetic or an electric field. Spatial proximity and/or a chemical bond between two atoms… …   Wikipedia

• nucleus — n. (pl. nuclei) 1 a the central part or thing round which others are collected. b the kernel of an aggregate or mass. 2 an initial part meant to receive additions. 3 Astron. the solid part of a comet s head. 4 Physics the positively charged… …   Useful english dictionary

• Comet nucleus — The nucleus of Comet Tempel 1. The nucleus is the solid, central part of a comet, popularly termed a dirty snowball. A cometary nucleus is composed of rock, dust, and frozen gases. When heated by the Sun, the gases sublimate and produce an… …   Wikipedia

• Halo nucleus — In nuclear physics, an atomic nucleus is called a halo nucleus or is said to have a nuclear halo if its radius is appreciably larger than that predicted by the liquid drop model, wherein the nucleus is assumed to be a sphere of constant density.… …   Wikipedia

• Ice nucleus — An ice nucleus is a particle which acts as the nucleus for the formation of an ice crystal in the atmosphere. The presence of ice nuclei increase the temperature that ice will form in the atmosphere from around −42°C to about −10°C. There are… …   Wikipedia

• condensation nucleus — Meteorol. nucleus (def. 5). [1910 15] * * * ▪ meteorology       tiny suspended particle, either solid or liquid, upon which water vapour condensation begins in the atmosphere. Its diameter may range from a few microns to a few tenths of a micron… …   Universalium

• salt nucleus — ▪ meteorology       tiny particle in the atmosphere that is composed of a salt, either solid or in an aqueous solution; it promotes the condensation of water and thus is one form of condensation nucleus (q.v.). * * * …   Universalium

• condensation nucleus —    A small solid particle around which condensation occurs [16] …   Lexicon of Cave and Karst Terminology

• hygroscopic nucleus —    Small solid particles around which water condensates (cloud formation) [16] …   Lexicon of Cave and Karst Terminology

• Comet — This article is about the astronomical object. For other uses, see Comet (disambiguation). Comet Hale– …   Wikipedia