condensed ring

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• Reader's Digest Condensed Books — were a series of anthology books, available by subscription and originally published quarterly (the frequency of publication went through several changes over the years), by Reader s Digest. Each volume consisted of three to five current… …   Wikipedia

• Fog ring — Fog Fog (f[o^]g), n. [Dan. sneefog snow falling thick, drift of snow, driving snow, cf. Icel. fok spray, snowdrift, fj[=u]k snowstorm, fj[=u]ka to drift.] 1. Watery vapor condensed in the lower part of the atmosphere and disturbing its… …   The Collaborative International Dictionary of English

• Raschig ring — Raschig rings are pieces of tube (approximately equal in length and diameter) used in large numbers as a packed bed within columns for distillations and other chemical engineering processes. They are usually ceramic or metal and provide a large… …   Wikipedia

• naphthalene — naphthalic /naf thal ik, nap /, naphthalenic /naf theuh len ik, nap /, adj. /naf theuh leen , nap /, n. Chem. a white, crystalline, water insoluble hydrocarbon, C10H8, usually obtained from coal tar: used in making dyes, as a moth repellant, etc …   Universalium

• Coal tar — is a brown or black liquid of extremely high viscosity, which smells of naphthalene and aromatic hydrocarbons. Coal tar is among the by products when coal is carbonized to make coke or gasified to make coal gas. Coal tars are complex and variable …   Wikipedia

• Phenanthren — Strukturformel Allgemeines Name Phenanthren …   Deutsch Wikipedia

• Physical Sciences — ▪ 2009 Introduction Scientists discovered a new family of superconducting materials and obtained unique images of individual hydrogen atoms and of a multiple exoplanet system. Europe completed the Large Hadron Collider, and China and India took… …   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

• superfluidity — [so͞o΄pər flo͞o id′ə tē] n. the phenomenon, exhibited by liquid helium at temperatures below 2.18°K, of flowing without friction and having very high thermal conductivity superfluid [so͞opərflo͞o′id] n., adj. * * * See superfluid. * * * Unusual… …   Universalium

• wood — wood1 woodless, adj. /wood/, n. 1. the hard, fibrous substance composing most of the stem and branches of a tree or shrub, and lying beneath the bark; the xylem. 2. the trunks or main stems of trees as suitable for architectural and other… …   Universalium

• Wood — /wood/, n. 1. Grant, 1892 1942, U.S. painter. 2. Leonard, 1860 1927, U.S. military doctor and political administrator. * * * I Hard, fibrous material formed by the accumulation of secondary xylem produced by the vascular cambium. It is the… …   Universalium