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π Agglutinative Language
An agglutinative language is a type of synthetic language with morphology that primarily uses agglutination. Words may contain different morphemes to determine their meanings, but all of these morphemes (including stems and affixes) remain, in every aspect, unchanged after their unions. This results in generally more easily deducible word meanings if compared to fusional languages, which allow modifications in either or both the phonetics or spelling of one or more morphemes within a word. This usually results in a shortening of the word, or it provides easier pronunciation.
Agglutinative languages have generally one grammatical category per affix while fusional languages have multiple. The term was introduced by Wilhelm von Humboldt to classify languages from a morphological point of view. It is derived from the Latin verb agglutinare, which means "to glue together".
Non-agglutinative synthetic languages are fusional languages; morphologically, they combine affixes by "squeezing" them together, drastically changing them in the process, and joining several meanings in a single affix (for example, in the Spanish word comΓ "I ate", the suffix -Γ carries the meanings of first person, singular number, past tense, perfective aspect, indicative mood, active voice.) The term agglutinative is sometimes incorrectly used as a synonym for synthetic. Used in this way, the term embraces both fusional languages and inflected languages. The agglutinative and fusional languages are two ends of a continuum, with various languages falling more toward one or the other end. For example, Japanese is generally agglutinative, but displays fusion in otΕto (εΌ, younger brother), from oto+hito (originally woto+pito), and in its non-affixing verb conjugations. A synthetic language may use morphological agglutination combined with partial usage of fusional features, for example in its case system (e.g., German, Dutch, and Persian).
Agglutinative languages tend to have a high rate of affixes or morphemes per word, and to be very regular, in particular with very few irregular verbs. For example, Japanese has very few irregular verbs β only two are significantly irregular, and there are only about a dozen others with only minor irregularity; Ganda has only one (or two, depending on how "irregular" is defined); while in the Quechua languages, all the ordinary verbs are regular. Korean has only ten irregular forms of conjugation except for the passive and causative conjugations. Georgian is an exception; it is highly agglutinative (with up to eight morphemes per word), but it has a significant number of irregular verbs with varying degrees of irregularity.
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- "Agglutinative Language" | 2019-11-19 | 59 Upvotes 29 Comments
π Wikipedia Now with Dark Mode
A light-on-dark color scheme (dark mode, night mode) is available to Wikipedia's smartphone apps and website (for users using the default skins) since July 2024.
In addition to this there is a gadget on English Wikipedia, and various volunteer-written CSS files that allow customization for logged-in users.
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- "Wikipedia Now with Dark Mode" | 2024-07-27 | 11 Upvotes 2 Comments
π 999-Year Lease
A 999-year lease, under historic common law, is an essentially permanent lease of property. The lease locations are mainly in Britain, its former colonies, and the Commonwealth.
A former colony, the Republic of Mauritius (The Raphael Fishing Company Ltd v. The State of Mauritius & Anor (Mauritius) [2008] UKPC 43 (30 July 2008)) established legal precedent on 30 July 2008 in respect of a 'permanent lease' on St. Brandon.
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- "999-Year Lease" | 2019-07-18 | 39 Upvotes 28 Comments
π Top 500 supercomputers by processor family
A supercomputer is a computer with a high level of performance as compared to a general-purpose computer. The performance of a supercomputer is commonly measured in floating-point operations per second (FLOPS) instead of million instructions per second (MIPS). Since 2017, there are supercomputers which can perform over a hundred quadrillion FLOPS (petaFLOPS). Since November 2017, all of the world's fastest 500 supercomputers run Linux-based operating systems. Additional research is being conducted in China, the United States, the European Union, Taiwan and Japan to build faster, more powerful and technologically superior exascale supercomputers.
Supercomputers play an important role in the field of computational science, and are used for a wide range of computationally intensive tasks in various fields, including quantum mechanics, weather forecasting, climate research, oil and gas exploration, molecular modeling (computing the structures and properties of chemical compounds, biological macromolecules, polymers, and crystals), and physical simulations (such as simulations of the early moments of the universe, airplane and spacecraft aerodynamics, the detonation of nuclear weapons, and nuclear fusion). They have been essential in the field of cryptanalysis.
Supercomputers were introduced in the 1960s, and for several decades the fastest were made by Seymour Cray at Control Data Corporation (CDC), Cray Research and subsequent companies bearing his name or monogram. The first such machines were highly tuned conventional designs that ran faster than their more general-purpose contemporaries. Through the decade, increasing amounts of parallelism were added, with one to four processors being typical. From the 1970s, vector processors operating on large arrays of data came to dominate. A notable example is the highly successful Cray-1 of 1976. Vector computers remained the dominant design into the 1990s. From then until today, massively parallel supercomputers with tens of thousands of off-the-shelf processors became the norm.
The US has long been the leader in the supercomputer field, first through Cray's almost uninterrupted dominance of the field, and later through a variety of technology companies. Japan made major strides in the field in the 1980s and 90s, with China becoming increasingly active in the field. As of November 2018, the fastest supercomputer on the TOP500 supercomputer list is the Summit, in the United States, with a LINPACK benchmark score of 143.5Β PFLOPS, followed by, Sierra, by around 48.860Β PFLOPS. The US has five of the top 10 and China has two. In June 2018, all supercomputers on the list combined broke the 1 exaFLOPS mark.
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- "Top 500 supercomputers by processor family" | 2019-09-24 | 57 Upvotes 29 Comments
π Iannis Xenakis - Wikipedia, the free encyclopedia
Iannis Xenakis (also spelt as Yannis Xenakis) (Greek: ΞΞΉΞ¬Ξ½Ξ½Ξ·Ο (ΞάννηΟ) ΞΞ΅Ξ½Ξ¬ΞΊΞ·Ο [ΛΚanis kseΛnacis]; 29 May 1922 β 4 February 2001) was a Greek-French composer, music theorist, architect, performance director and engineer. After 1947, he fled Greece, becoming a naturalized citizen of France. He is considered an important post-World War II composer whose works helped revolutionize 20th-century classical music.
Xenakis pioneered the use of mathematical models in music such as applications of set theory, stochastic processes and game theory and was also an important influence on the development of electronic and computer music. He integrated music with architecture, designing music for pre-existing spaces, and designing spaces to be integrated with specific music compositions and performances.
Among his most important works are Metastaseis (1953β54) for orchestra, which introduced independent parts for every musician of the orchestra; percussion works such as Psappha (1975) and Pléïades (1979); compositions that introduced spatialization by dispersing musicians among the audience, such as Terretektorh (1966); electronic works created using Xenakis's UPIC system; and the massive multimedia performances Xenakis called polytopes, that were a summa of his interests and skills. Among the numerous theoretical writings he authored, the book Formalized Music: Thought and Mathematics in Composition (French edition 1963, English translation 1971) is regarded as one of his most important. As an architect, Xenakis is primarily known for his early work under Le Corbusier: the Sainte Marie de La Tourette, on which the two architects collaborated, and the Philips Pavilion at Expo 58, which Xenakis designed by himself.
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- "Iannis Xenakis - Wikipedia, the free encyclopedia" | 2010-05-20 | 18 Upvotes 5 Comments
π Politician's Syllogism
The politician's syllogism, also known as the politician's logic or the politician's fallacy, is a logical fallacy of the form:
- We must do something
- This is something
- Therefore, we must do this.
The politician's fallacy was identified in a 1988 episode of the BBC television political sitcom Yes, Prime Minister titled "Power to the People", and has taken added life on the Internet. The syllogism, invented by fictional British civil servants, has been quoted in the real British Parliament. The syllogism has also been quoted in American political discussion.
In Yes, Prime Minister, the term is discussed between two high-ranking civil servants who are concerned that the prime minister wants to implement a scheme to reform local government due to political opposition there. In this issue, as with many other issues humorously explored by the show, the civil servants believe that doing anything is worse than doing nothing because actions tend to undermine the dominance of the civil service. They identify the politician's logic as a fallacious categorical syllogism:
- All cats have four legs
- My dog has four legs
- Therefore, my dog is a cat.
This invalid form of argument, labeled AAA-2 among syllogisms, commits the fallacy of the undistributed middle: it says nothing about all things having four legs (the middle term) and thus the conclusion does not logically follow from the premises, even if the premises are true. The politician's syllogism similarly says nothing about all known "somethings" that could be done. As is common with fallacious undistributed middle arguments, it can also be seen as the fallacy of affirming the consequent when restated as an equivalent hypothetical syllogism:
- To improve things, things must change
- We are changing things
- Therefore, we are improving things.
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- "Politician's Syllogism" | 2021-01-01 | 82 Upvotes 75 Comments
π List of selected stars for navigation
Fifty-eight selected navigational stars are given a special status in the field of celestial navigation. Of the approximately 6,000Β stars visible to the naked eye under optimal conditions, the selected stars are among the brightest and span 38 constellations of the celestial sphere from the declination of β70Β° to +89Β°. Many of the selected stars were named in antiquity by the Babylonians, Greeks, Romans, and Arabs.
The star Polaris, often called the "North Star", is treated specially due to its proximity to the north celestial pole. When navigating in the Northern Hemisphere, special techniques can be used with Polaris to determine latitude or gyrocompass error. The other 57Β selected stars have daily positions given in nautical almanacs, aiding the navigator in efficiently performing observations on them. A second group of 115Β "tabulated stars" can also be used for celestial navigation, but are often less familiar to the navigator and require extra calculations.
For purposes of identification, the positions of navigational stars β expressed as declination and sidereal hour angle β are often rounded to the nearest degree. In addition to tables, star charts provide an aid to the navigator in identifying the navigational stars, showing constellations, relative positions, and brightness.
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- "List of selected stars for navigation" | 2019-09-24 | 76 Upvotes 13 Comments
π Corporate Memphis
Corporate Memphis is a term used (often disparagingly) to describe a flat, geometric art style, widely used in Big Tech illustrations in the late 2010s and early 2020s. It is often criticized as seeming uninspired and dystopian.
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- "Corporate Memphis" | 2022-06-30 | 22 Upvotes 3 Comments
π List of commercial failures in video games
The list of commercial failures in video games includes any video game software on any platform, and any video game console hardware, of all time. As a hit-driven business, the great majority of the video game industry's software releases have been commercial failures. In the early 21st century, industry commentators made these general estimates: 10% of published games generated 90% of revenue; that around 3% of PC games and 15% of console games have global sales of more than 100,000 units per year, with even this level insufficient to make high-budget games profitable; and that about 20% of games make any profit.
Some of these failure events have drastically changed the video game market since its origin in the late 1970s. For example, the failures of E.T. and Pac-Man for the Atari 2600 contributed to the video game crash of 1983. Some games, though commercial failures, are well received by certain groups of gamers and are considered cult games.
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- "List of commercial failures in video games" | 2020-03-09 | 21 Upvotes 20 Comments
π United States Camel Corps
The United States Camel Corps was a mid-19th-century experiment by the United States Army in using camels as pack animals in the Southwestern United States. While the camels proved to be hardy and well suited to travel through the region, the Army declined to adopt them for military use. The Civil War interfered with the experiment and it was eventually abandoned; the animals were sold at auction.
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- "United States Camel Corps" | 2025-01-28 | 11 Upvotes 2 Comments
- "United States Camel Corps" | 2017-08-16 | 70 Upvotes 19 Comments