By John Daintith and Elizabeth Martin (Editors)
Hailed as "handy and readable" (Nature) and "well worthy searching" (New Scientist), this best-selling dictionary includes 9,200 alphabetically geared up entries on all points of chemistry, physics, biology (including human biology), earth sciences, and astronomy. as well as a wealth of trustworthy, updated entries, clients will locate worthwhile brief biographies of best scientists, full-page illustrated gains on topics equivalent to the sun process and Genetically converted Organisms, and chronologies of particular medical matters together with plastics, electronics, and phone biology. This new version comprises improved assurance of worldwide warming, forensic technology, astrophysics, quantum idea, and the sun approach. Supported through over 2 hundred diagrams and illustrations, the Dictionary of technological know-how additionally comprises instructed internet hyperlinks for lots of entries, accessed and stored modern through the spouse site. ultimately, it has appendices on SI devices, primary constants, geological time scale, a simplified type of the plant and animal kingdoms, and the periodic desk. either concise and wide-ranging, this quantity is a perfect reference paintings for college kids or for a house library.
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Extra resources for A Dictionary of Science, Sixth Edition (Oxford Paperback Reference)
A corkscrew, or screwdriver, is said to be righthanded if turning the corkscrew in a clockwise direction drives the screw into the object (such as the cork of a bottle). The corkscrew rule states that a right-handed corkscrew is analogous to an electric current and its magnetic Üeld with the direction of the screw being analogous to electric current; the direction in which the corkscrew is being turned is analogous to the direction of lines of force of the Üeld. ampere-turn The SI unit of *magnetomotive force equal to the magnetomotive force produced when a current of one ampere Ûows through one turn of a magnetizing coil.
Alkyl benzenes can be made by the *Friedel–Crafts reaction. g. methyl group, CH3–, derived from methane. alkyl halides See . alkynes (acetylenes) Unsaturated hydrocarbons that contain one or more triple carbon–carbon bonds in their molecules. In systematic chemical nomenclature alkyne names end in the sufÜx -yne. Alkynes that have only one triple bond form a *homologous series: ethyne (acetylene), CH≡CH, propyne, CH3CH≡CH, etc. They can be made by the action of potassium hydroxide in alcohol solution on haloalkanes containing halogen atoms on adjacent carbon atoms; for example: RCHClCH2Cl + 2KOH → 2KCl + 2H2O + RCH≡CH Like *alkenes, alkynes undergo addition reactions.
D. 5°C; becomes anhydrous at 200°C. It forms cubic or octahedral crystals that are soluble in cold water, very soluble in hot water, and insoluble in ethanol and acetone. The compound occurs naturally as the mineral kalinite. It is a double salt and can be prepared by recrystallization from a solution containing equimolar quantities of potassium sulphate and aluminium sulphate. It is used as a mordant for dyeing and in the tanning and Ünishing of leather goods (for white leather). See also .
A Dictionary of Science, Sixth Edition (Oxford Paperback Reference) by John Daintith and Elizabeth Martin (Editors)