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๐ Competent Man
In literature, the competent man is a stock character who exhibits a very wide range of abilities and knowledge, making him a form of polymath. While not the first to use such a character type, the heroes and heroines of Robert A. Heinlein's fiction (with Jubal Harshaw being a prime example) generally have a wide range of abilities, and one of Heinlein's characters, Lazarus Long, gives a wide summary of requirements:
A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyse a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.
The competent man, more often than not, is written without explaining how he achieved his wide range of skills and abilities. When such characters are young, there is often not much explanation as to how they acquired so many skills at an early age.
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- "Competent Man" | 2022-06-22 | 12 Upvotes 5 Comments
๐ Ringelmann effect
The Ringelmann effect is the tendency for individual members of a group to become increasingly less productive as the size of their group increases. This effect, discovered by French agricultural engineer Maximilien Ringelmann (1861โ1931), illustrates the inverse relationship that exists between the size of a group and the magnitude of group membersโ individual contribution to the completion of a task. While studying the relationship between process loss (i.e., reductions in performance effectiveness or efficiency) and group productivity, Ringelmann (1913) found that having group members work together on a task (e.g., pulling a rope) actually results in significantly less effort than when individual members are acting alone. Ringelmann discovered that as more and more people are added to a group, the group often becomes increasingly inefficient, ultimately violating the notion that group effort and team participation reliably leads to increased effort on behalf of the members.
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- "Ringelmann effect" | 2015-10-07 | 19 Upvotes 1 Comments
๐ Happy Nowruz
Nowruz (Persian: ููุฑูุฒโ, pronouncedย [nowหษพuหz]; lit.โ "new day") is the Iranian New Year, also known as the Persian New Year, which is celebrated worldwide by various ethno-linguistic groups.
Nowruz has Iranian and Zoroastrian origins, however, it has been celebrated by diverse communities for over 7,000 years in Western Asia, Central Asia, the Caucasus, the Black Sea Basin, the Balkans, and South Asia. It is a secular holiday for most celebrants that is enjoyed by people of several different faiths, but remains a holy day for Zoroastrians, Bahais, and some Muslim communities.
Nowruz is the day of the vernal equinox, and marks the beginning of spring in the Northern Hemisphere. It marks the first day of the first month (Farvardin) of the Iranian calendars. It usually occurs on March 21 or the previous or following day, depending on where it is observed. The moment the Sun crosses the celestial equator and equalizes night and day is calculated exactly every year, and families gather together to observe the rituals.
While Nowruz has been celebrated since the reform of the Iranian Calendar in the 11th century CE to mark the new year, the United Nations officially recognized the "International Day of Nowruz" with the adoption of UN resolution 64/253 in 2010.
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- "Nowruz" | 2021-03-20 | 105 Upvotes 15 Comments
- "Happy Nowruz" | 2017-03-20 | 43 Upvotes 5 Comments
๐ Perpetual Bond
A perpetual bond, also known colloquially as a perpetual or perp, is a bond with no maturity date, therefore allowing it to be treated as equity, not as debt. Issuers pay coupons on perpetual bonds forever, and they do not have to redeem the principal. Perpetual bond cash flows are, therefore, those of a perpetuity.
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- "Perpetual Bond" | 2022-04-24 | 66 Upvotes 32 Comments
๐ System D
System D is a manner of responding to challenges that requires one to have the ability to think quickly, to adapt, and to improvise when getting a job done. The term gained wider popularity in the United States after appearing in the 2006 publication of Anthony Bourdain's The Nasty Bits. Bourdain references finding the term in Nicolas Freeling's memoir, The Kitchen, about Freeling's years as a Grand Hotel cook in France.
The term derives from the French term "Systรจme D". The letter D refers to any one of the French nouns "dรฉbrouille", dรฉbrouillardise or dรฉmerde (French slang). The verbs se dรฉbrouiller and se dรฉmerder mean to make do, to manage, especially in an adverse situation. Basically, it refers to one's ability and need to be resourceful.
In Down and Out in Paris and London, George Orwell described the term "dรฉbrouillard" as something the lowest-level kitchen workers, the plongeurs, wanted to be called, as people who would get the job done, no matter what.
In recent literature on the informal economy, System D is the growing share of the world's economy which makes up the underground economy, which as of 2011 has a projected GDP of $10 trillion. The informal economy is usually considered as one part of a dual economy. The concept of dual economy is where the economy is divided into two parts - the formal and the informal. The formal economy refers to all economic activities that operate within the official legal framework and are regulated by the government. In common parlance, it is understood as enterprises and citizens who pay taxes on all generated incomes. The reason, Neuwirth refers to this kind of an economy as a DIY economy or system D is because of the self reliance of the members within this sector. Due to lack of documentation, such as citizenship proof, tax id number, identity or address proof, people working in this sector are usually left with no way to seek support from their governments. This means that they are unable to access formal institutions which require documentation, and forces them to be self-reliant.
This is not to be confused with Autarky or Self Reliant Economies. Economists define self-sufficiency or self-reliance as the state of not requiring any aid, support, interaction or trade with the outside world. It is generally believed that a fully self-dependent economy or autarky is not possible in today's world.
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- "System D" | 2023-04-22 | 177 Upvotes 97 Comments
- "System D" | 2017-09-22 | 11 Upvotes 1 Comments
๐ Reification (Computer Science)
Reification is the process by which an abstract idea about a computer program is turned into an explicit data model or other object created in a programming language. A computable/addressable objectโa resourceโis created in a system as a proxy for a non computable/addressable object. By means of reification, something that was previously implicit, unexpressed, and possibly inexpressible is explicitly formulated and made available to conceptual (logical or computational) manipulation. Informally, reification is often referred to as "making something a first-class citizen" within the scope of a particular system. Some aspect of a system can be reified at language design time, which is related to reflection in programming languages. It can be applied as a stepwise refinement at system design time. Reification is one of the most frequently used techniques of conceptual analysis and knowledge representation.
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- "Reification (Computer Science)" | 2017-10-09 | 12 Upvotes 2 Comments
๐ Berlin Gold Hat
The Berlin Gold Hat or Berlin Golden Hat (German: Berliner Goldhut) is a Late Bronze Age artefact made of thin gold leaf. It served as the external covering on a long conical brimmed headdress, probably of an organic material. It is now in the Neues Museum on Museum Island in Berlin, in a room by itself with an elaborate explanatory display.
The Berlin Gold Hat is the best preserved specimen among the four known conical golden hats known from Bronze Age Europe so far. Of the three others, two were found in southern Germany, and one in the west of France. All were found in the 19th and 20th centuries. It is generally assumed that the hats served as the insignia of deities or priests in the context of a sun cult that appears to have been widespread in Central Europe at the time. The hats are also suggested to have served astronomical/calendrical functions.
The Berlin Gold Hat was acquired in 1996 by the Berlin Museum fรผr Vor- und Frรผhgeschichte as a single find without provenance. A comparative study of the ornaments and techniques in conjunction with dateable finds suggests that it was made in the Late Bronze Age, circa 1,000 to 800 BC.
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- "Berlin Gold Hat" | 2020-06-19 | 87 Upvotes 57 Comments
๐ Isetta
The Isetta is an Italian-designed microcar built under license in a number of different countries, including Argentina, Spain, Belgium, France, Brazil, Germany, and the United Kingdom. Because of its egg shape and bubble-like windows, it became known as a bubble car, a name also given to other similar vehicles.
In 1955, the BMW Isetta became the world's first mass-production car to achieve a fuel consumption of 3ย L/100ย km (94ย mpgโimp; 78ย mpgโUS). It was the top-selling single-cylinder car in the world, with 161,728 units sold.
Initially manufactured by the Italian firm Iso SpA, the name Isetta is the Italian diminutive form of Iso, meaning "little Iso".
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- "Isetta" | 2020-07-05 | 72 Upvotes 66 Comments
๐ Great Britain road numbering scheme
The Great Britain road numbering scheme is a numbering scheme used to classify and identify all roads in Great Britain. Each road is given a single letter, which represents the road's category, and a subsequent number, of 1 to 4 digits. Introduced to arrange funding allocations, the numbers soon became used on maps and as a method of navigation. Two sub-schemes exist: one for motorways, and another for non-motorway roads. While some major roads form part of the International E-road network, no E-routes are signposted in Great Britain, or the rest of the UK.
The scheme applies only to Great Britain (England, Scotland and Wales); a similar system is used in Northern Ireland, as well as outside the UK in the Isle of Man, Jersey and British overseas territories. These other numbering schemes use similar conventions.
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- "Great Britain road numbering scheme" | 2020-12-31 | 42 Upvotes 59 Comments
๐ Unreal Mode
In x86 computing, unreal mode, also big real mode, huge real mode, flat real mode, or voodoo mode is a variant of real mode, in which one or more segment descriptors has been loaded with non-standard values, like 32-bit limits allowing access to the entire memory. Contrary to its name, it is not a separate addressing mode that the x86 processors can operate in. It is used in the 80286 and later x86 processors.
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- "Unreal Mode" | 2019-03-18 | 27 Upvotes 1 Comments