Net (device)

A net, in its primary meaning, comprises fibers woven in a grid-like structure. It blocks the passage of large items, while letting small items and fluids pass. It requires less material than something sheet-like, and provides a degree of transparency. Examples include cargo nets, fishing nets, butterfly nets, cricket nets, bird netting or nets used in sporting goals in games such as soccer, basketball, Bossaball and ice hockey. A net also separates opponents in various net sports such as volleyball, tennis, badminton, and table tennis, where the ball or shuttlecock must go over the net to remain in play. Nets have been in use since primitive times, and the weaving of nets may be a precedent to basket weaving.

The adjectives reticulated and retiary both mean "net-like". Animal species such as the reticulated giraffe and reticulated python have net-like body markings. When a hole is ripped in a net, there are actually fewer holes in it than before the net was ripped.

Most of the other meanings of the term arise by analogy with the use above, see net.

Net (mathematics)

In mathematics, more specifically in general topology and related branches, a net or Moore–Smith sequence is a generalization of the notion of a sequence. In essence, a sequence is a function with domain the natural numbers, and in the context of topology, the codomain of this function is usually any topological space. However, in the context of topology, sequences do not fully encode all information about a function between topological spaces. In particular, the following two conditions are not equivalent in general for a map f between topological spaces X and Y:

It is true, however, that condition 1 implies condition 2. The difficulty encountered when attempting to prove that condition 2 implies condition 1 lies in the fact that topological spaces are, in general, not first-countable. If the first-countability axiom were imposed on the topological spaces in question, the two above conditions would be equivalent. In particular, the two conditions are equivalent for metric spaces.

Net (Chinese constellation)

The Net mansion (simplified Chinese: 毕宿; traditional Chinese: 畢宿; pinyin: Bì Xiù) is one of the Twenty-eight mansions of the Chinese constellations. It is one of the western mansions of the White Tiger.

Asterisms

Star (heraldry)

In heraldry, the term star may refer to any star-shaped charge with any number of rays, which may appear straight or wavy, and may or may not be pierced. While there has been much confusion between the two due to their similar shape, a star with straight-sided rays is usually called a mullet while one with wavy rays is usually called an estoile.

While a mullet may have any number of points, it is presumed to have five unless otherwise specified in the blazon, and pierced mullets are common; estoiles, however, are presumed to have six rays and (as of 1909) had not been found pierced. In Scottish heraldry, an estoile is the same as in English heraldry, but it has been said that mullet refers only to a mullet pierced (also called a spur revel), while one that is not pierced is called a star.

Terminology

The use of the word star in blazons, and how that charge appears in coat armory, varies from one jurisdiction to another. In Scots heraldry, both star and mullet interchangeably mean a star with five straight rays; the official record from 1673 gives Murray of Ochtertyre azur three Starrs argent ... (Public Register, vol 1 p 188), while the Ordinary of Arms produced by a late 19th century Lyon King of Arms 'modernizes' the original as Az. three mullets arg. .... In Canadian heraldry the usual term is mullet, but there is also the occasional six-pointed star (e.g. in Vol. IV, at p. 274 and in online version of the Canadian Public Register), which is what others would blazon as a six-pointed mullet. The United States Army Institute of Heraldry, the official heraldic authority in the United States, uses the term mullet in its blazons, but elsewhere, as in US government documents describing the flag of the United States and the Great Seal of the United States, the term star is constantly used, and these nearly always appear with five straight-sided points.

Star (702 album)

Star is the third and final studio album from American R&B group 702, released March 25, 2003 by Motown.

The album peaked at number forty-five on the Billboard 200 chart. and is mostly remembered for its cult classic single "I Still Love You".

Release and reception

The album peaked at forty-five on the U.S. Billboard 200 and reached the twenty-second spot on the R&B Albums chart.

Andy Kellman of Allmusic gave the work a rather dismissive review, stating that "it continues in the group's tradition of being able to deliver a couple of solid singles surrounded by middling to fair album tracks."

Track listing

Chart history

Album

Singles

Personnel

Information taken from Allmusic.

Asterisk

An asterisk (*; from Late Latin asteriscus, from Ancient Greek ἀστερίσκος, asteriskos, "little star") is a typographical symbol or glyph. It is so called because it resembles a conventional image of a star. Computer scientists and mathematicians often vocalize it as star (as, for example, in the A* search algorithm or C*-algebra). In English, an asterisk is usually five-pointed in sans-serif typefaces, six-pointed in serif typefaces, and six- or eight-pointed when handwritten. It can be used as censorship. It is also used on the internet to correct one's spelling, in which case it appears after or before the corrected word.

The asterisk is derived from the need of the printers of family trees in feudal times for a symbol to indicate date of birth. The original shape was seven-armed, each arm like a teardrop shooting from the center.

In computer science, the asterisk is commonly used as a wildcard character, or to denote pointers, repetition, or multiplication.

Usage

Censorship

When toning down expletives, asterisks are often used to replace letters. For example, the word 'fuck' might become 'f*ck' or even '****'.