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π MacGuffin
In fiction, a MacGuffin (sometimes McGuffin) is an object, device, or event that is necessary to the plot and the motivation of the characters, but insignificant, unimportant, or irrelevant in itself. The term was originated by Angus MacPhail for film, adopted by Alfred Hitchcock, and later extended to a similar device in other fiction.
The MacGuffin technique is common in films, especially thrillers. Usually, the MacGuffin is revealed in the first act, and thereafter declines in importance. It can reappear at the climax of the story but may actually be forgotten by the end of the story. Multiple MacGuffins are sometimes derisively identified as plot coupons.
Discussed on
- "MacGuffin" | 2023-04-09 | 11 Upvotes 4 Comments
π Surveillance Capitalism
Surveillance capitalism has a number of meanings around the commodification of personal information. Since 2014, social psychologist Shoshana Zuboff has used and popularized the term.
Discussed on
- "Surveillance Capitalism" | 2021-07-27 | 16 Upvotes 1 Comments
- "Surveillance Capitalism" | 2020-04-12 | 71 Upvotes 38 Comments
- "Surveillance Capitalism" | 2019-03-13 | 14 Upvotes 2 Comments
π Rope (data structure)
In computer programming, a rope, or cord, is a data structure composed of smaller strings that is used to efficiently store and manipulate a very long string. For example, a text editing program may use a rope to represent the text being edited, so that operations such as insertion, deletion, and random access can be done efficiently.
Discussed on
- "Rope (data structure)" | 2023-02-26 | 35 Upvotes 4 Comments
- "Rope (data structure)" | 2013-06-08 | 217 Upvotes 30 Comments
π John Boyd
John Richard Boyd (January 23, 1927 β March 9, 1997) was a United States Air Force fighter pilot and Pentagon consultant during the second half of the 20th century. His theories have been highly influential in military, sports, business, and litigation strategies and planning.
As part of the Fighter Mafia, Boyd inspired the Lightweight Fighter program (LWF), which produced the successful General Dynamics F-16 Fighting Falcon and McDonnell Douglas F/A-18 Hornet, which are still in use by the United States and by several other military powers into the 21st century. Boyd, together with Thomas Christie, created the EnergyβManeuverability theory of aerial combat, which became the world standard for the design of fighter aircraft. He also developed the decision cycle known as the OODA loop, the process by which an entity reacts to an event.
Discussed on
- "John Boyd" | 2022-11-27 | 19 Upvotes 1 Comments
π Swatch Internet Time
Swatch Internet Time (or .beat time) is a decimal time concept introduced in 1998 by the Swatch corporation as part of their marketing campaign for their line of "Beat" watches.
Instead of hours and minutes, the mean solar day is divided into 1000 parts called ".beats". Each .beat is equal to one decimal minute in the French Revolutionary decimal time system and lasts 1 minute and 26.4 seconds (86.4 seconds) in standard time. Times are notated as a 3-digit number out of 1000 after midnight. So, for example @248 would indicate a time 248 .beats after midnight representing β248β1000 of a day, just over 5 hours and 57 minutes.
There are no time zones in Swatch Internet Time; instead, the new time scale of Biel Meantime (BMT) is used, based on Swatch's headquarters in Biel, Switzerland and equivalent to Central European Time, West Africa Time, and UTC+01. Unlike civil time in Switzerland and many other countries, Swatch Internet Time does not observe daylight saving time.
Discussed on
- "Swatch Internet Time" | 2024-04-14 | 61 Upvotes 39 Comments
- "Swatch Internet Time (1998)" | 2018-02-05 | 86 Upvotes 78 Comments
- "Swatch Internet Time" | 2014-01-12 | 103 Upvotes 96 Comments
- "Ask HN: Why did this idea of Internet Time not work?" | 2009-03-17 | 7 Upvotes 28 Comments
π Toyota Century
The Toyota Century (Japanese: γγ¨γΏγ»γ»γ³γγ₯γͺγΌ, Hepburn: Toyota SenchurΔ«) is a limousine produced mainly for the Japanese market, serving as Toyota's flagship car within Japan; globally the unrelated Lexus LS series is Toyota's flagship luxury model. Production of the Century began in 1967, and the model received only minor changes until redesigns in 1997 and 2018.
The Century derived its name from the 100th birthday of Sakichi Toyoda (born 14 February 1867), the founder of Toyota Industries. It is often used by the Imperial House of Japan, the Prime Minister of Japan, senior Japanese government leaders, and high-level executive businessmen. The Century is comparable in purpose to the Austin Princess/Daimler DS420, Cadillac Series 70, Mercedes-Benz 600 series, Chinese Red Flag, Rolls-Royce, and Russian ZIS/ZIL limousines.
The first-generation Century was available with only a V8 engine (the third post-war Japanese-built sedan so-equipped) at its introduction in 1967 until a full platform redesign in 1997. The second generation was only installed with a Toyota-designed and -built V12, an engine bespoke to the Century, until 2018, when the power-train reverted to a V8 with the addition of Toyota's hybrid technology.
While the Century is a premium, full-size luxury sedan, it is not available at Japanese Lexus dealerships; it can only be purchased at specifically identified Toyota Store locations. The gold phoenix logo used throughout is called the HΕ'Ε (ι³³ε°) or FushichΕ (δΈζ»ι³₯) from Sinospheric mythology, representing the Imperial House of Japan, and the image can be found throughout Asia, such as the Kinkaku-ji in Kyoto.
The exterior styling of the Century has, with some modifications, remained unchanged since its introduction, primarily due to its perception as denoting conservative success. Its appearance is iconic in Asian countries and is usually painted black. The closest Japanese competitor was the Nissan President, with a similar status reputation although, during the 1960s and '70s, the high market positioning was also shared with the Mitsubishi Debonair. In the 1970s, two other Japanese competitors introduced large sedans β the Isuzu Statesman de Ville and the Mazda Roadpacer (both derived from General Motors-Australia products) β which were short-lived.
Discussed on
- "Toyota Century" | 2022-09-12 | 12 Upvotes 2 Comments
π Pizza box form factor
In computing, a pizza box is a style of case design for desktop computers or network switches. Pizza box cases tend to be wide and flat, normally 1.5 to 4 inches or 4 to 10 centimetres in height, resembling pizza delivery boxes and thus the name. This is in contrast to a tower system, whose case height is much greater than the width and has an "upright" appearance. In modern usage, the term "pizza box" is normally reserved for very flat cases with height no more than 2 inches (51Β mm), while those taller than 2 inches are referred to as desktop cases instead.
The common setup of a pizza box system is to have the display monitor placed directly on top of the case, which serves as a podium to elevate the monitor more towards the user's eye level, and to have other peripherals placed in front and alongside the case. Occasionally, the pizza box may be laid on its sides in a tower-like orientation.
Data General's Aviion Unix server was the first to coin the expression when it advertised in 1991 with the tagline "Who just fit mainframe power in a pizza box?", but most computers generally referred to as pizza box systems were high-end desktop systems such as Sun Microsystems workstations sold in the 1990s, most notably the SPARCstationΒ 1 and SPARCstationΒ 5. Other notable examples have been among the highest-performing desktop computers of their generations, including the SGIΒ Indy, the NeXTstation, and the Amiga 1000, but the form factor was also seen in budget and lower-end lines such as the Macintosh LC family.
The original SPARCstationΒ 1 design included an expansion bus technology, SBus, expressly designed for the form factor; expansion cards were small, especially in comparison to other expansion cards in use at the time such as VMEbus, and were mounted horizontally instead of vertically. PC-compatible computers in this type of case typically use the PCI expansion bus and are usually either a)Β limited to one or two horizontally placed expansion cards or b)Β require special low-profile expansion cards, shorter than the PCIΒ cards regular PCs use.
The density of computing power and stackability of pizza box systems also made them attractive for use in data centers. Systems originally designed for desktop use were placed on shelves inside of 19-inch racks, sometimes requiring that part of their cases be cut off for them to fit. Since the late 1990s, pizza boxes have been a common form factor in office cubicles, data centers or industrial applications, where desktop space, rack room and density are critical. Servers in this form factor, as well as higher-end Ethernet switches, are now designed for rack mounting. Rack mount 1U computers come in all types of configurations and depths.
The pizza box form factor for smaller personal systems and thin clients remains in use well into the 21st century, though it is increasingly being superseded by laptops, nettops or All-in-One PC designs that embed the already size-reduced computer onto the keyboard or display monitor.
π Erotetics
Erotetics or erotetic logic is a part of logic, devoted to logical analysis of questions. It is sometimes called the logic of questions and answers.
Discussed on
- "Erotetics" | 2022-03-08 | 76 Upvotes 45 Comments
π List of territory purchased by a sovereign nation from another sovereign nation
This is a list of purchases of territory by a sovereign nation from another sovereign nation.
Discussed on
- "List of territory purchased by a sovereign nation from another sovereign nation" | 2022-05-16 | 10 Upvotes 1 Comments
π Mycorrhizal Network
A mycorrhizal network (also known as a common mycorrhizal network or CMN) is an underground network found in forests and other plant communities, created by the hyphae of mycorrhizal fungi joining with plant roots. This network connects individual plants together. Mycorrhizal relationships are most commonly mutualistic, with both partners benefiting, but can be commensal or parasitic, and a single partnership may change between any of the three types of symbiosis at different times. Mycorrhizal networks were discovered in 1997 by Suzanne Simard, professor of forest ecology at the University of British Columbia in Canada. Simard grew up in Canadian forests where her family had made a living as foresters for generations. Her field studies revealed that trees are linked to neighboring trees by an underground network of fungi that resembles the neural networks in the brain. In one study, Simard watched as a Douglas fir that had been injured by insects appeared to send chemical warning signals to a ponderosa pine growing nearby. The pine tree then produced defense enzymes to protect against the insect.
The formation and nature of these networks is context-dependent, and can be influenced by factors such as soil fertility, resource availability, host or mycosymbiont genotype, disturbance and seasonal variation. Some plant species, such as buckhorn plantain, a common lawn and agricultural weed, benefit from mycorrhizal relationships in conditions of low soil fertility, but are harmed in higher soil fertility. Both plants and fungi associate with multiple symbiotic partners at once, and both plants and fungi are capable of preferentially allocating resources to one partner over another.
Mycorrhizal associations have profoundly impacted the evolution of plant life on Earth ever since the initial adaptation of plant life to land. In evolutionary biology, mycorrhizal symbiosis has prompted inquiries into the possibility that symbiosis, not competition, is the main driver of evolution.
Referencing an analogous function served by the World Wide Web in human communities, the many roles that mycorrhizal networks appear to play in woodland have earned them a colloquial nickname: the "Wood Wide Web". Many of the claims made about common mycorrhizal networks, including that they are ubiquitous in forests, that resources are transferred between plants through them, and that they are used to transfer warnings between trees, have been criticised as being not strongly supported by evidence.