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The time required for a quantity to fall to half its value as measured at the beginning of the time period. In physics, half-life typically refers to a property of radioactive decay, but may refer to any quantity which follows an exponential decay. Hamilton's principle Hamiltonian mechanics harmonic mean heat
This list contains acronyms, initialisms, and pseudo-blends that begin with the letter T. For the purposes of this list: acronym = an abbreviation pronounced as if it were a word, e.g., SARS = severe acute respiratory syndrome , pronounced to rhyme with cars
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Its first printed use came as early as 1991 in William G. Hawkeswood's "One of the Children: An Ethnography of Identity and Gay Black Men," wherein one of the subjects used the word "tea" to mean ...
This is a list of personal titles arranged in a sortable table. They can be sorted: Alphabetically; By language, nation, or tradition of origin; By function. See Separation of duties for a description of the Executive, Judicial, and Legislative functions as they are generally understood today.
A giant planet composed mainly of hydrogen and helium gases rather than heavier elements, e.g. Jupiter and Saturn in the Solar System. geocenter The geometric center of the Earth, i.e. the arithmetic mean position of all points within the oblate spheroid that is the precise shape of the Earth. geocentric
ter in die (t.i.d.) thrice in a day: Medical shorthand for "three times a day". terminat hora diem; terminat auctor opus. The hour finishes the day; the author finishes his work. Phrase concluding Christopher Marlowe's play Doctor Faustus. [3] terminus ante/post quem: limit before/after which
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