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31Mathematics 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… …
32papermaking — [pā′pər māk΄iŋ] n. the making of paper papermaker n. * * * pa·per·mak·ing (pāʹpər mā kĭng) n. The process or craft of making paper. paʹper·mak er n. * * * Introduction formation of a matted or felted sheet, usually of cellulose fibres,… …
33Aging of wine — Bottles of wine in an underground cellar aging The aging of wine, and its ability to potentially improve wine quality, distinguishes wine from most other consumable goods. While wine is perishable and capable of deteriorating, complex chemical… …
34Gilding — is the art of applying a thin layer of gold, simulated gold, or other metal to a surface. Products employed may be real gold leaf ranging in karats from 9 up to 24; imitation leaf composition gold, Dutch metal leaf, aluminum leaf, copper leaf;… …
35explosive — explosively, adv. explosiveness, n. /ik sploh siv/, adj. 1. tending or serving to explode: an explosive temper; Nitroglycerin is an explosive substance. 2. pertaining to or of the nature of an explosion: explosive violence. 3. likely to lead to… …
36photoengraving — /foh toh en gray ving/, n. 1. a photographic process of preparing printing plates for letterpress printing. 2. a plate so produced. 3. a print made from it. [1870 75; PHOTO + ENGRAVING] * * * Any of several processes for producing printing plates …
37agricultural technology — Introduction application of techniques to control the growth and harvesting of animal and vegetable products. Soil preparation Mechanical processing of soil so that it is in the proper physical condition for planting is usually… …
38Guanine — chembox ImageFile1 = Guanine chemical structure.png ImageSize1 = 150px ImageFileL2 = Guanine 3D balls.png ImageSizeL2 = 100px ImageFileR2 = Guanine 3D vdW.png ImageSizeR2 = 100px IUPACName = 2 amino 1 H purin 6(9 H ) one OtherNames = 2 amino 6… …
39Iron — Fe redirects here. For other uses, see Fe (disambiguation). This article is about the chemical element. For other uses, see Iron (disambiguation). manganese …
40Tanning — For other uses, see Tanning (disambiguation). For human tanning, see Sun tanning. Tannery redirects here. For other uses, see Tannery (disambiguation). Tanned leather in Marrakech …
