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An atomic formula or atom is simply a predicate applied to a tuple of terms; that is, an atomic formula is a formula of the form P (t 1,…, t n) for P a predicate, and the t n terms. All other well-formed formulae are obtained by composing atoms with logical connectives and quantifiers. For example, the formula ∀x. P (x) ∧ ∃y. Q (y, f (x ...
Richard Gordon FitzGerald Uniacke, FRSAI (19 August 1867 – 11 November 1934) [1] was a British genealogist and librarian. He was the eldest son of the Rev. Robert FitzGerald Uniacke, late vicar of Tandridge, Surrey , a descendant of an old Irish family, the Uniackes of Uniacke and Castleton, County Cork. [ 2 ]
Uniacke had a town house in Halifax, but spent most of his time living and entertaining at the estate until his death at the house in 1830. The house remained in the Uniacke family with few changes until it was purchased by the Nova Scotia government in 1949. [3] It first opened to the public as a museum on June 2, 1952. [4]
With Thomson's discovery of the electron in 1897, scientist began the search for a model of the interior of the atom. Thomson proposed negative electrons swimming in a pool of positive charge. Between 1908 and 1911, Rutherford showed that the positive part was only 1/3000th of the diameter of the atom. [6]: 26
Half-life (symbol t ½) is the time required for a quantity (of substance) to reduce to half of its initial value.The term is commonly used in nuclear physics to describe how quickly unstable atoms undergo radioactive decay or how long stable atoms survive.
Lieutenant Desmond Percival Fitzgerald Uniacke (18 December 1895 – 25 March 1933) was a British World War I flying ace credited with thirteen aerial victories. He was captured after engaging in aerial combat with Hermann Göring , commander of Jasta 27 .
Atom was developed in 2008 by GitHub founder Chris Wanstrath as a text editor using the Electron Framework (originally called Atom Shell), a framework designed as the base for Atom. [18] Between May 2015 and December 2018, [19] Facebook developed Nuclide [20] and Atom IDE projects to turn Atom into an integrated development environment (IDE ...
Andrew Mitchell Uniacke (9 November 1808 – 26 July 1895) was a lawyer, banker and politician in Nova Scotia. He represented Halifax township in the Nova Scotia House of Assembly from 1843 to 1847. He was born in Halifax , the son of Richard John Uniacke (lawyer) and Eliza Newton.