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Letter Frequency
Letter frequency is the number of times letters of the alphabet appear on average in written language. Letter frequency analysis dates back to the Arab mathematician Al-Kindi (c. AD 801–873), who formally developed the method to break ciphers. Letter frequency analysis gained importance in Europe with the development of movable type in AD 1450, wherein one must estimate the amount of type required for each letterform. Linguists use letter frequency analysis as a rudimentary technique for language identification, where it is particularly effective as an indication of whether an unknown writing system is alphabetic, syllabic, or ideographic. The use of letter frequencies and frequency analysis plays a fundamental role in cryptograms and several word puzzle games, including hangman, ''Scrabble'', '' Wordle'' and the television game show '' Wheel of Fortune''. One of the earliest descriptions in classical literature of applying the knowledge of English letter frequency to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematical Association Of America
The Mathematical Association of America (MAA) is a professional society that focuses on mathematics accessible at the undergraduate level. Members include university A university () is an educational institution, institution of tertiary education and research which awards academic degrees in several Discipline (academia), academic disciplines. ''University'' is derived from the Latin phrase , which roughly ..., college, and high school teachers; graduate and undergraduate students; pure and applied mathematicians; computer scientists; statisticians; and many others in academia, government, business, and industry. The MAA was founded in 1915 and is headquartered at 11 Dupont in the Dupont Circle, Washington, D.C., Dupont Circle neighborhood of Washington, D.C. The organization publishes mathematics journals and books, including the ''American Mathematical Monthly'' (established in 1894 by Benjamin Finkel), the most widely read mathematics journal in the world according to re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scrabble
''Scrabble'' is a word game in which two to four players score points by placing tiles, each bearing a single letter, onto a Board game, game board divided into a 15×15 grid of squares. The tiles must form words that, in crossword fashion, read left to right in rows or downward in columns and are included in a standard dictionary or lexicon. American architect Alfred Mosher Butts invented the game in 1931. ''Scrabble'' is produced in the United States and Canada by Hasbro, under the brands of both of its subsidiaries, Milton Bradley Company, Milton Bradley and Parker Brothers. Mattel owns the rights to manufacture ''Scrabble'' outside the U.S. and Canada. As of 2008, the game is sold in 121 countries and is available in more than 30 languages; approximately 150 million sets have been sold worldwide, and roughly one-third of American homes and half of British homes have a ''Scrabble'' set. There are approximately 4,000 ''Scrabble'' clubs around the world. Equipment ''Scrabble ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colemak
Colemak is a keyboard layout A keyboard layout is any specific physical, visual, or functional arrangement of the keys, legends, or key-meaning associations (respectively) of a computer keyboard, mobile phone, or other computer-controlled typographic keyboard. Standard keybo ... for Latin-script alphabets, designed to make typing more efficient and comfortable than QWERTY by placing the most frequently used letters of the English language on the home row while keeping many common keyboard shortcuts the same as in QWERTY. Released on 1 January 2006, it is named after its inventor, Shai Coleman. All major modern operating systems, including Microsoft Windows (as of Windows 11, version 24H2), Mac operating systems, macOS, Linux, Android (operating system), Android, ChromeOS, and Berkeley Software Distribution, BSD, support Colemak natively. A program to install the layout on older versions of Windows is available. On Android and iOS, the layout is offered by several virtual keyboa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dvorak Keyboard Layout
Dvorak () is a keyboard layout for English patented in 1936 by August Dvorak and his brother-in-law, William Dealey, as a faster and more ergonomic alternative to the QWERTY layout (the ''de facto'' standard keyboard layout). Dvorak proponents claim that it requires less finger motion and as a result reduces errors, increases typing speed, reduces repetitive strain injuries, or is simply more comfortable than QWERTY. Dvorak has failed to replace QWERTY as the most common keyboard layout, with the most pointed-to reasons being that QWERTY was popularized 60 years prior to Dvorak's creation, and that Dvorak's advantages are debated and relatively small. However, most major modern operating systems (such as Windows, macOS, Linux, iOS, Android, ChromeOS, and BSD) allow a user to switch to the Dvorak layout. The layout can be chosen for use with any hardware keyboard, regardless of any characters printed on the key caps. Several modifications were designed by the team directed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blickensderfer Typewriter
The Blickensderfer typewriter was invented by George Canfield Blickensderfer (1850–1917) and patented on April 12, 1892. Blickensderfer was a nephew of John Celivergos Zachos, the inventor of the stenotype. Two models, Model 1 and Model 5, were unveiled to the public at the 1893 World's Columbian Exposition in Chicago. The Model 5 was a stripped-down version of the bigger, more complex Model 1. These machines were intended to compete with larger Remington, Hammond and Yost typewriters, and were the first truly portable, full-keyboard typewriters. The design also enabled the typist to see the typed work, at a time when most typewriters were understrike machines that concealed the writing. When Blickensderfer unveiled his small Model 5, its compactness and novel features attracted huge crowds and many orders. History The Blickensderfer typewriters were initially manufactured in a rented factory on Garden Street in Stamford, Connecticut. By 1896, due to strong foreign deman ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Home Row
Touch typing (also called blind typing, or touch keyboarding) is a style of typing. Although the phrase refers to typing without using the sense of sight to find the keys—specifically, a touch typist will know their location on the keyboard through muscle memory—the term is often used to refer to a specific form of touch typing that involves placing the eight fingers in a horizontal row along the middle of the keyboard (the '' home row'') and having them reach for specific other keys. (Under this usage, typists who do not look at the keyboard but do not use home row either are referred to as hybrid typists.) Both two-handed touch typing and one-handed touch typing are possible. Frank Edward McGurrin, a court stenographer from Salt Lake City, Utah who taught typing classes, reportedly invented home row touch typing in 1888. On a standard QWERTY keyboard for English speakers the home row keys are: "ASDF" for the left hand and "JKL;" for the right hand. Most modern computer key ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keyboard Layout
A keyboard layout is any specific physical, visual, or functional arrangement of the keys, legends, or key-meaning associations (respectively) of a computer keyboard, mobile phone, or other computer-controlled typographic keyboard. Standard keyboard layouts vary depending on their intended writing system, language, and use case, and some hobbyists and manufacturers create non-standard layouts to match their individual preferences, or for extended functionality. is the actual positioning of keys on a keyboard. is the arrangement of the legends (labels, markings, engravings) that appear on those keys. is the arrangement of the key-meaning association or keyboard mapping, determined in software, of all the keys of a keyboard; it is this (rather than the legends) that determines the actual response to a key press. Modern computer keyboards are designed to send a scancode to the operating system (OS) when a key is pressed or released. This code reports only the key's row and column ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doubled Letter
A digraph () or digram is a pair of characters used in the orthography of a language to write either a single phoneme (distinct sound), or a sequence of phonemes that does not correspond to the normal values of the two characters combined. Some digraphs represent phonemes that cannot be represented with a single character in the writing system of a language, like in Spanish ''chico'' and ''ocho''. Other digraphs represent phonemes that can also be represented by single characters. A digraph that shares its pronunciation with a single character may be a relic from an earlier period of the language when the digraph had a different pronunciation, or may represent a distinction that is made only in certain dialects, like the English . Some such digraphs are used for purely etymological reasons, like in French. In some orthographies, digraphs (and occasionally trigraphs) are considered individual letters, which means that they have their own place in the alphabet and cannot be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herbert Zim
Herbert Spencer Zim (July 12, 1909 – December 5, 1994) was an American naturalist, author, editor and educator best known as the founder (1945) and editor-in-chief of the Golden Guides series of nature books. Biography Zim was born 1909 to Marco and Minnie (Orlo) Zim in New York City, but spent his childhood years in southern California. At the age of fourteen he returned to the east. He took his degrees (B.S. biologia, M.S. biologia, Ph.D. botanica) at Columbia University. Zim wrote or edited more than one hundred books on science, and in a thirty-year career teaching in the public schools introduced laboratory instruction into elementary school science. He is best known as the founder in 1945 (and, for twenty-five years, editor in chief) of the Golden Guides, pocket-size introductions for children to such subjects as fossils, zoology, microscopy, rocks and minerals, trees, wildflowers, dinosaurs, navigation and more. He was the sole or co-author for many of the books, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Kidd
William Kidd (c. 1645 – 23 May 1701), also known as Captain William Kidd or simply Captain Kidd, was a Scottish-American privateer. Conflicting accounts exist regarding his early life, but he was likely born in Dundee and later settled in New York City. By 1690, Kidd had become a highly successful privateer, commissioned to protect English interests in the Thirteen Colonies in North America and the West Indies. In 1695, Kidd received a royal commission from the Earl of Bellomont, the governor of New York, Massachusetts Bay and New Hampshire, to hunt down pirates and enemy French ships in the Indian Ocean. He received a letter of marque and set sail on a new ship, '' Adventure Galley'', the following year. On his voyage he failed to find many targets, lost much of his crew and faced threats of mutiny. In 1698, Kidd captured his greatest prize, the 400-ton '' Quedagh Merchant'', a ship hired by Armenian merchants and captained by an Englishman. The political climate in Eng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Gold-Bug
"The Gold-Bug" is a short story by American writer Edgar Allan Poe published in 1843. The plot follows William Legrand, who becomes fixated on an unusual gold-colored bug he has discovered. His servant Jupiter fears that Legrand is going insane and goes to Legrand's friend, an unnamed narrator, who agrees to visit his old friend. Legrand pulls the other two into an adventure after deciphering a secret message that will lead to a buried treasure. The story, set on Sullivan's Island, South Carolina, is often compared with Poe's "tales of ratiocination" as an early form of detective fiction. Poe became aware of the public's interest in secret writing in 1840 and asked readers to challenge his skills as a code-breaker. He took advantage of the popularity of cryptography as he was writing "The Gold-Bug", and the success of the story centers on one such cryptogram. Modern critics have judged the characterization of Legrand's servant Jupiter as racist, especially because of his dial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
