Random Articles (Page 402)
Have a deep view into what people are curious about.
🔗 Cluster (spacecraft)
Cluster was a constellation of four European Space Agency spacecraft which were launched on the maiden flight of the Ariane 5 rocket, Flight 501, and subsequently lost when that rocket failed to achieve orbit. The launch, which took place on Tuesday, 4 June 1996, ended in failure due to multiple errors in the software design: Dead code (running, but purposeful so only for Ariane 4) with inadequate protection against integer overflow led to an exception handled inappropriately—halting the whole inertial navigation system that otherwise would have been unaffected. This resulted in the rocket veering off its flight path 37 seconds after launch, beginning to disintegrate under high aerodynamic forces, and finally self-destructing by its automated flight termination system. The failure has become known as one of the most infamous and expensive software bugs in history. The failure resulted in a loss of more than US$370 million.
Discussed on
- "Cluster (spacecraft)" | 2013-06-04 | 29 Upvotes 17 Comments
🔗 German Peasants' War
The German Peasants' War, Great Peasants' War or Great Peasants' Revolt (German: Deutscher Bauernkrieg) was a widespread popular revolt in some German-speaking areas in Central Europe from 1524 to 1525. It was Europe's largest and most widespread popular uprising before the French Revolution in 1789. The revolt failed because of intense opposition from the aristocracy, who slaughtered up to 100,000 of the 300,000 poorly armed peasants and farmers. The survivors were fined and achieved few, if any, of their goals. Like the preceding Bundschuh movement and the Hussite Wars, the war consisted of a series of both economic and religious revolts involving peasants and farmers, sometimes supported by radical clergy like Thomas Müntzer. The fighting was at its height in the middle of 1525.
The war began with separate insurrections, beginning in the southwestern part of what is now Germany and Alsace, and spread in subsequent insurrections to the central and eastern areas of Germany and present-day Austria. After the uprising in Germany was suppressed, it flared up briefly in several cantons of the Old Swiss Confederacy.
In mounting their insurrection, peasants faced insurmountable obstacles. The democratic nature of their movement left them without a command structure and they lacked artillery and cavalry. Most of them had little, if any, military experience. Their opposition had experienced military leaders, well-equipped and disciplined armies, and ample funding.
The revolt incorporated some principles and rhetoric from the emerging Protestant Reformation, through which the peasants sought influence and freedom. Some Radical Reformers, most famously Thomas Müntzer, instigated and supported the revolt. In contrast, Martin Luther and other Magisterial Reformers condemned it and sided with the aristocrats. In Against the Murderous, Thieving Hordes of Peasants, Luther condemned the violence as the devil's work and called for the aristocrats to put down the rebels like mad dogs. The movement was supported by Huldrych Zwingli, but the condemnation by Luther contributed to its defeat. While around 20 veterans of the war went on to become leading figures in the Anabaptist movement, James Stayer notes that "no large number of known Anabaptists can be identified by name as participants in the 1525 upheaveal".
Discussed on
- "German Peasants' War" | 2026-07-23 | 49 Upvotes 54 Comments
🔗 Note G
Note G was a computer algorithm written by Ada Lovelace, and was designed to calculate Bernoulli numbers using the hypothetical analytical engine. Note G is generally agreed to be the first algorithm specifically for a computer, and Lovelace is considered as the first computer programmer as a result. The algorithm was the last note in a series labelled A to G, which she employed as visual aids to accompany her English translation of Luigi Menabrea's 1842 French transcription of Charles Babbage's lecture on the analytical engine at the University of Turin, "Notions sur la machine analytique de Charles Babbage" ("Elements of Charles Babbage’s Analytical Machine"). Lovelace's Note G was never tested, as the engine was never built. Her notes, along with her translation, were published in 1843.
In the modern era, thanks to more readily available computing equipment and programming resources, Lovelace's algorithm has since been tested, after being "translated" into modern programming languages. These tests have independently concluded that there was a bug in the script, due to a minor typographical error, rendering the algorithm in its original state unusable.
Discussed on
- "Note G" | 2023-12-18 | 31 Upvotes 4 Comments
🔗 Parasocial Interaction
Parasocial interaction (PSI) refers to a kind of psychological relationship experienced by an audience in their mediated encounters with performers in the mass media, particularly on television and on online platforms. Viewers or listeners come to consider media personalities as friends, despite having no or limited interactions with them. PSI is described as an illusionary experience, such that media audiences interact with personas (e.g., talk show hosts, celebrities, fictional characters, social media influencers) as if they are engaged in a reciprocal relationship with them. The term was coined by Donald Horton and Richard Wohl in 1956.
A parasocial interaction, an exposure that garners interest in a persona, becomes a parasocial relationship after repeated exposure to the media persona causes the media user to develop illusions of intimacy, friendship, and identification. Positive information learned about the media persona results in increased attraction, and the relationship progresses. Parasocial relationships are enhanced due to trust and self-disclosure provided by the media persona. Media users are loyal and feel directly connected to the persona, much as they are connected to their close friends, by observing and interpreting their appearance, gestures, voice, conversation, and conduct. Media personas have a significant amount of influence over media users, positive or negative, informing the way that they perceive certain topics or even their purchasing habits. Studies involving longitudinal effects of parasocial interactions on children are still relatively new, according to developmental psychologist Sandra L. Calvert.
Social media introduces additional opportunities for parasocial relationships to intensify because it provides more opportunities for intimate, reciprocal, and frequent interactions between the user and persona. These virtual interactions may involve commenting, following, liking, or direct messaging. The consistency in which the persona appears could also lead to a more intimate perception in the eyes of the user.
Discussed on
- "Parasocial Interaction" | 2022-11-16 | 12 Upvotes 1 Comments
🔗 Plankalkül
Plankalkül (German pronunciation: [ˈplaːnkalkyːl]) is a programming language designed for engineering purposes by Konrad Zuse between 1942 and 1945. It was the first high-level programming language to be designed for a computer.
Kalkül is the German term for a formal system—as in Hilbert-Kalkül, the original name for the Hilbert-style deduction system—so Plankalkül refers to a formal system for planning.
Discussed on
- "Plankalkül" | 2023-03-07 | 226 Upvotes 47 Comments
- "Plankalkül" | 2016-01-15 | 56 Upvotes 14 Comments
🔗 Tocharian Languages
The Tocharian (sometimes Tokharian) languages ( or ), also known as Arśi-Kuči, Agnean-Kuchean or Kuchean-Agnean, are an extinct branch of the Indo-European language family spoken by inhabitants of the Tarim Basin, the Tocharians. The languages are known from manuscripts dating from the 5th to the 8th century AD, which were found in oasis cities on the northern edge of the Tarim Basin (now part of Xinjiang in Northwest China) and the Lop Desert. The discovery of these languages in the early 20th century contradicted the formerly prevalent idea of an east–west division of the Indo-European language family as centum and satem languages, and prompted reinvigorated study of the Indo-European family. Scholars studying these manuscripts in the early 20th century identified their authors with the Tokharoi, a name used in ancient sources for people of Bactria (Tokharistan). Although this identification is now believed to be mistaken, "Tocharian" remains the usual term for these languages.
The discovered manuscripts record two closely related languages, called Tocharian A (also East Tocharian, Agnean or Turfanian) and Tocharian B (West Tocharian or Kuchean). The subject matter of the texts suggests that Tocharian A was more archaic and used as a Buddhist liturgical language, while Tocharian B was more actively spoken in the entire area from Turfan in the east to Tumshuq in the west. A body of loanwords and names found in Prakrit documents from the Lop Nor basin have been dubbed Tocharian C (Kroränian). A claimed find of ten Tocharian C texts written in Kharoṣṭhī script has been discredited.
The oldest extant manuscripts in Tocharian B are now dated to the 5th or even late 4th century AD, making Tocharian a language of Late Antiquity contemporary with Gothic, Classical Armenian, and Primitive Irish.
Discussed on
- "Tocharian Languages" | 2023-01-11 | 137 Upvotes 57 Comments
🔗 Trans-African Highway Network
The Trans-African Highway network comprises transcontinental road projects in Africa being developed by the United Nations Economic Commission for Africa (UNECA), the African Development Bank (ADB), and the African Union in conjunction with regional international communities. They aim to promote trade and alleviate poverty in Africa through highway infrastructure development and the management of road-based trade corridors. The total length of the nine highways in the network is 56,683 km (35,221 mi).
In some documents the highways are referred to as "Trans-African Corridors" or "Road Corridors" rather than highways. The name Trans-African Highway and its variants are not in wide common usage outside of planning and development circles, and as of 2014 one does not see them signposted as such or labelled on maps, except in Kenya and Uganda where the Mombasa–Nairobi–Kampala–Fort Portal section (or the Kampala–Kigali feeder road) of Trans-African Highway 8 is sometimes referred to as the "Trans-Africa Highway".
Discussed on
- "Trans-African Highway Network" | 2023-09-08 | 13 Upvotes 4 Comments
🔗 Foucault pendulum
The Foucault pendulum or Foucault's pendulum is a simple device named after French physicist Léon Foucault and conceived as an experiment to demonstrate the Earth's rotation. The pendulum was introduced in 1851 and was the first experiment to give simple, direct evidence of the earth's rotation. Foucault pendulums today are popular displays in science museums and universities.
Discussed on
- "Foucault pendulum" | 2020-04-27 | 69 Upvotes 33 Comments
🔗 Maestro I – The First IDE?
Maestro I was an early integrated development environment for software. developed by Softlab Munich in the 1970s and 1980s.
The system was originally called "Programm-Entwicklungs-Terminal-System" ("program development terminal system") abbreviated as PET; it was renamed after Commodore International introduced a home computer called the Commodore PET in 1977.
At one time there were 22,000 installations worldwide. The first USA installations were at Boeing in 1979, with eight Maestro I systems and Bank of America with 24 system and 576 developer terminals. Until 1989, there were 6,000 installations in the Federal Republic of Germany [1].
One of the last Maestro I systems is at the Museum of Information Technology at Arlington.
Discussed on
- "Maestro I – The First IDE?" | 2024-01-10 | 22 Upvotes 5 Comments
🔗 Object Linking and Embedding
Object Linking & Embedding (OLE) is a proprietary technology developed by Microsoft that allows embedding and linking to documents and other objects. For developers, it brought OLE Control Extension (OCX), a way to develop and use custom user interface elements. On a technical level, an OLE object is any object that implements the IOleObject interface, possibly along with a wide range of other interfaces, depending on the object's needs.
Discussed on
- "Object Linking and Embedding" | 2024-05-07 | 39 Upvotes 37 Comments