Perch (unit)
A perch is a unit of measurement used for area in the English system of measurement, and an ancient unit of height and volume in a number of systems of measurement. Its name derives from the Ancient Roman unit, the pertica.
Origin
The word perch is from the French perche, derived from the Latin pertica, meaning "a pole or staff". Originating in Roman antiquity, it spread with the Roman Empire and was likely re-introduced to England with the Norman conquest of 1066. In the Roman Empire, France and England, it also could mean area (square perches), and among operative masons of the Middle Ages, volume.
Area
As a unit of area, a square perch (the perch being standardized to equal 161⁄2 feet, or 51⁄2 yards) is equal to a square rod, 30 1⁄4 square yards (25.29 square metres) or 0.00625 acres, or 1/160 acre. There are 40 square perches to a rood (A rectangular area with edges of one furlong (10 chains i.e. 40 rods) and one rod respectively), and 160 square perches to an acre (an area one furlong by one chain (i.e. 4 rods)). This unit is usually referred to as a perch or pole even though square perch and square pole were the more precise terms. Confusingly, rod was used as a unit of area but it meant a rood.
Noun
A noun (from Latin nōmen, literally meaning "name") is a word that functions as the name of some specific thing or set of things, such as living creatures, objects, places, actions, qualities, states of existence, or ideas.Linguistically, a noun is a member of a large, open part of speech whose members can occur as the main word in the subject of a clause, the object of a verb, or the object of a preposition.
Lexical categories (parts of speech) are defined in terms of the ways in which their members combine with other kinds of expressions. The syntactic rules for nouns differ from language to language. In English, nouns are those words which can occur with articles and attributive adjectives and can function as the head of a noun phrase.
History
Word classes (parts of speech) were described by Sanskrit grammarians from at least the 5th century BC. In Yāska's Nirukta, the noun (nāma) is one of the four main categories of words defined.
The Ancient Greek equivalent was ónoma (ὄνομα), referred to by Plato in the Cratylus dialog, and later listed as one of the eight parts of speech in The Art of Grammar, attributed to Dionysius Thrax (2nd century BC). The term used in Latin grammar was nōmen. All of these terms for "noun" were also words meaning "name". The English word noun is derived from the Latin term, through the Anglo-Norman noun.
Total order
In mathematics, a linear order, total order, simple order, or (non-strict) ordering is a binary relation on some set X, which is transitive, antisymmetric, and total (this relation is denoted here by infix ≤). A set paired with a total order is called a totally ordered set, a linearly ordered set, a simply ordered set, or a chain.
If X is totally ordered under ≤, then the following statements hold for all a, b and c in X:
Antisymmetry eliminates uncertain cases when both a precedes b and b precedes a. A relation having the property of "totality" means that any pair of elements in the set of the relation are comparable under the relation. This also means that the set can be diagrammed as a line of elements, giving it the name linear.Totality also implies reflexivity, i.e., a ≤ a. Therefore, a total order is also a partial order. The partial order has a weaker form of the third condition. (It requires only reflexivity, not totality.) An extension of a given partial order to a total order is called a linear extension of that partial order.
Linear (album)
Linear is the name of the debut studio album by the pop/freestyle group Linear. It was released on March 21, 1990, by Atlantic Records. The album's first single, Sending All My Love, reached #5 on the Billboard Hot 100 making the album itself reach #52 on the Billboard 200. It also won a Gold certificate the same year, for selling more than five hundred thousand copies in the United States. The second single, "Don't You Come Cryin'", did not repeat the success of the previous single - though it achieved some prominence, reaching the 70th spot on the Billboard Hot 100 list. The album's last single, "Something Going On", failed to succeed.
Track listing
Charts
Singles - Billboard (North America)
References
Podcasts:
