cement chemistry
41Robert Herman Bogue — Saltar a navegación, búsqueda Robert Herman Bogue (Southborough, Massachusetts, 27 de septiembre de 1889  ?) fue un químico y físico estadounidense. Antes de tomar posesión en el cargo de Director del Portland Cement Association (PCA)… …
42Silicon dioxide — Silica redirects here. For other uses, see Silica (disambiguation). Silicon dioxide …
43List of nanotechnology applications — Part of a series of articles on Nanotechnology …
44Grey's Anatomy (season 4) — infobox tvseason season name = Grey s Anatomy Season 4 caption = Promotional poster for the fourth season. dvd release date = September 9, 2008 dvd format = country = USA network = ABC first aired = September 27, 2007 last aired = May 22, 2008… …
45Ratio — This article is about the mathematical concept. For the Swedish institute, see Ratio Institute. For the academic journal, see Ratio (journal). For the philosophical concept, see Reason. For the legal concept, see Ratio decidendi. The ratio of… …
46Dental restorative materials — This page is about types of dental restorative materials. For dental fillings see dental restorations Dental restorative materials are specially fabricated materials, designed for use as dental restorations (fillings), which are used to restore… …
47Thorbergur Thorvaldson — Infobox Person name = Thorbergur Thorvaldson image size = 180px caption = University of Saskatchewan Chemist birth date = August 24, 1883 birth place = Iceland death date = October 4, 1965 death place = Saskatoon, Saskatchewan occupation =… …
48wood — 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… …
49Wood — /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… …
50Silicon — Not to be confused with the silicon containing synthetic polymer silicone. aluminium ← silicon → phosphorus C ↑ Si ↓ Ge …
