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The Major System (also called the phonetic number system, phonetic mnemonic system, or Herigone's mnemonic system) is a mnemonic technique used to aid in memorizing numbers. The system works by converting numbers into consonant sounds, then into words by adding vowels. The system works on the principle that images can be remembered more easily than numbers. ==The system== Each numeral is associated with one or more consonants. Vowels and the consonants ''w'', ''h'', and ''y'' are ignored. These can be used as "fillers" to make sensible words from the resulting consonant sequences. A standard mapping is: The groups of similar sounds and the rules for applying the mappings are almost always fixed, but other hooks and mappings can be used as long as the person using the system can remember them and apply them consistently. Each numeral maps to a set of similar sounds with similar mouth and tongue positions. The link is phonetic, that is to say, it is the consonant sounds that matter, not the spelling. Therefore, a word like ''action'' would encode the number ''762'' (/k/-/ʃ/-/n/), not ''712'' (''k''-''t''-''n''). Double letters are disregarded when not pronounced separately, e.g. ''muddy'' encodes ''31'' (/m/-/d/), not ''311'', but ''midday'' encodes ''311'' (/m/-/d/-/d/) while ''accept'' encodes ''7091'' (/k/-/s/-/p/-/t/) since the ''d''s and ''c''s are pronounced separately. ''x'' encodes ''70'' when pronounced as /ks/ or /gz/ (e.g. in ''fax'' and ''exam'') and ''76'' when pronounced /kʃ/ or /gʒ/ (e.g. in ''action'' or ''luxury''); ''z'' encodes ''10'' when pronounced /ts/ (e.g. in ''pizza''). In ''ghost'' (''701'', /g/-/s/-/t/) and ''enough'' (''28'', /n/-/f/), ''gh'' is being encoded by different numerals. Usually, a rhotic accent is assumed, e.g. ''fear'' would encode ''84'' (/f/-/r/) rather than ''8'' (/f/). Often the mapping is compact. ''Hindquarters'', for example, translates unambiguously to ''2174140'' (/n/-/d/-/k/-/r/-/t/-/r/-/z/), which amounts to seven digits encoded by eight letters, and can be easily visualized. Each numeral maps to a set of similar sounds with similar mouth and tongue positions. For most people it would be easier to remember ''3.1415927'' (an approximation of the mathematical constant pi) as: : ''meteor'' (''314'', /m/-/t/-/r/) : ''tail'' (''15'', /t/-/l/) : ''pink'' (''927'', /p/-/ŋ/-/k/, and taking /ŋ/ to be ''2'') Short term visual memory of imagined scenes allows large numbers of digits to be memorized with ease, though usually only for a short time. Whilst this is unwieldy at first, with practice it can become a very effective technique. Longer-term memory may require the formulation of more object-related mnemonics with greater logical connection, perhaps forming grammatical sentences that apply to the matter rather than just strings of images. The system can be employed with phone numbers. One would typically make up multiple words, preferably a sentence, or an ordered sequence of images featuring the owner of the number. The Major System can be combined with a peg system for remembering lists, and is sometimes used also as a method of generating the pegs. It can also be combined with other memory techniques such as rhyming, substitute words, or the method of loci. Repetition and concentration using the ordinary memory is still required. An advantage of the major system is that it is possible to use a computer to automatically translate the number into a set of words. One can then pick the best of several alternatives. Such programs include "Numzi"〔(Numzi mnemonic search engine (bi-directional) )〕 "Rememberg"〔(Rememberg online mnemonic search engine )〕 "Fonbee",〔(Fonbee Mnemonic Major System Encoder )〕 the freeware "2Know",〔(2Know Mnemonic Software )〕 and the website "pinfruit".〔(Web application for the mnemonic major system )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Mnemonic major system」の詳細全文を読む スポンサード リンク
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