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121Port Arthur massacre (Australia) — Infobox civilian attack title = Port Arthur Massacre caption = Location of Port Arthur, where the majority of the shootings occurred location = Port Arthur, Tasmania, Australia target = Port Arthur Historic Site date = April 28, 1996 time = 1pm… …
122Division by two — In mathematics, division by two or halving has also been called mediation or dimidiation.[1] The treatment of this as a different operation from multiplication and division by other numbers goes back to the ancient Egyptians, whose multiplication …
123Myopia — For other uses, see Myopia (disambiguation). Myopia Classification and external resources ICD 10 H …
124Solvable group — Concepts in group theory category of groups subgroups, normal subgroups group homomorphisms, kernel, image, quotient direct product, direct sum semidirect product, wreath product …
125The Fountainhead — Fountainhead redirects here. For other uses, see Fountainhead (disambiguation). The Fountainhead   …
126Normal operator — In mathematics, especially functional analysis, a normal operator on a complex Hilbert space H (or equivalently in a C* algebra) is a continuous linear operator that commutes with its hermitian adjoint N*: Normal operators are important because… …
127Lewisite — Chembox new Name = Lewisite ImageFile = Lewisite.svg ImageSize = ImageName = Lewisite IUPACName = 2 chloroethenyldichloroarsine Reference = [ [http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=5372798 loc=ec rcs Lewisite I Compound Summary] …
128Cost of goods sold — Accountancy Key concepts Accountant · Accounting period · Bookkeeping · Cash and accrual basis · Cash flow management · Chart of accounts  …
