- published: 15 Apr 2016
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A match is a tool for starting a fire under controlled conditions. A typical modern match is made of a small wooden stick or stiff paper. One end is coated with a material that can be ignited by frictional heat generated by striking the match against a suitable surface. Matches are usually sold in quantity; wooden ones are packaged in boxes, and paper matches are clustered in rows stapled into matchbooks. They are commonly sold by tobacconists and many other kinds of shops. The coated end of a match, known as the match "head," contains either phosphorus or phosphorus sesquisulfide as the active ingredient and gelatin as a binder. There are two main types of matches: safety matches, which can be struck only against a specially prepared surface, and strike-anywhere matches, for which any suitably frictional surface can be used. Some match-like compositions, known as electric matches, are ignited electrically and do not make use of heat from friction.
Historically, the term match referred to lengths of cord (later, cambric) impregnated with chemicals, and allowed to burn continuously. These were used to light fires and fire guns (see matchlock) and cannons (see linstock). Such matches were characterised by their burning speed i.e. quick match and slow match. Depending on its formulation, a slow match burns at a rate of around 30 cm (1 ft) per hour and a quick match at 4 to 60 centimetres (1.6 to 24 in) per minute. The modern equivalent of this sort of match is the simple fuse, still used in pyrotechnics to obtain a controlled time delay before ignition. The original meaning of the word still persists in some pyrotechnics terms, such as black match (a black powder-impregnated fuse) and Bengal match (a firework akin to sparklers producing a relatively long-burning, coloured flame). But, when friction matches became commonplace, they became the main object meant by the term.
Analysis is the process of breaking a complex topic or substance into smaller parts to gain a better understanding of it. The technique has been applied in the study of mathematics and logic since before Aristotle (384–322 B.C.), though analysis as a formal concept is a relatively recent development.
The word is a transcription of the ancient Greek ἀνάλυσις (analusis, "a breaking up", from ana- "up, throughout" and lysis "a loosening").
As a formal concept, the method has variously been ascribed to Alhazen,René Descartes (Discourse on the Method) and Galileo Galilei. It has also been ascribed to Isaac Newton, in the form of a practical method of physical discovery (which he did not name or formally describe).
The field of chemistry uses analysis in at least three ways: to identify the components of a particular chemical compound (qualitative analysis), to identify the proportions of components in a mixture (quantitative analysis), and to break down chemical processes and examine chemical reactions between elements of matter. For an example of its use, analysis of the concentration of elements is important in managing a nuclear reactor, so nuclear scientists will analyze neutron activation to develop discrete measurements within vast samples. A matrix can have a considerable effect on the way a chemical analysis is conducted and the quality of its results. Analysis can be done manually or with a device. Chemical analysis is an important element of national security among the major world powers with materials measurement and signature intelligence (MASINT) capabilities.
Shahrukh Khan (pronounced [‘ʃaːɦrəx ˈxaːn]; born 2 November 1965), often credited as Shah Rukh Khan and informally referred to as SRK, is an Indian film actor. Known as "The King of Bollywood", Khan has acted in over 70 Hindi films. He has won fourteen Filmfare Awards from thirty nominations for his work in Indian films and shares the record for the highest number of Best Actor awards with Dilip Kumar, eight wins. In 2005, the Government of India honoured him with the Padma Shri for his contributions towards Indian cinema.
After graduating with a Bachelor's degree in economics, he started his career appearing in theatre and several television serials in the late 1980s and later made his Hindi film debut in 1992 with Deewana. Early in his career he was recognised for his unconventional choice of negative roles in films such as Darr (1993), Baazigar (1993) and Anjaam (1994). Since then he has played leading roles in a wide variety of film genres, including romantic films, comedies, thrillers, action films, sport films, and historical dramas among others.