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π Today Is Norwegian Constitution Day
Norwegian Constitution Day is the national day of Norway and is an official public holiday observed on May 17 each year. Among Norwegians, the day is referred to simply as syttende mai (lit. "seventeenth May"), Nasjonaldagen (The National Day) or Grunnlovsdagen (The Constitution Day), although the latter is less frequent.
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- "Today Is Norwegian Constitution Day" | 2017-05-17 | 19 Upvotes 1 Comments
π Ishikawa diagram
Ishikawa diagrams (also called fishbone diagrams, herringbone diagrams, cause-and-effect diagrams, or Fishikawa) are causal diagrams created by Kaoru Ishikawa that show the causes of a specific event.
Common uses of the Ishikawa diagram are product design and quality defect prevention to identify potential factors causing an overall effect. Each cause or reason for imperfection is a source of variation. Causes are usually grouped into major categories to identify and classify these sources of variation.
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- "Ishikawa diagram" | 2020-01-29 | 104 Upvotes 16 Comments
π HachikΕ
HachikΕ (γγε ¬, November 10, 1923 β March 8, 1935) was a Japanese Akita dog remembered for his remarkable loyalty to his owner, HidesaburΕ Ueno, for whom he continued to wait for over nine years following Ueno's death.
HachikΕ was born on November 10, 1923, at a farm near the city of Εdate, Akita Prefecture. In 1924, HidesaburΕ Ueno, a professor at the Tokyo Imperial University, brought him to live in Shibuya, Tokyo, as his pet. HachikΕ would meet Ueno at Shibuya Station every day after his commute home. This continued until May 21, 1925, when Ueno died of a cerebral hemorrhage while at work. From then until his death on March 8, 1935, HachikΕ would return to Shibuya Station every day to await Ueno's return.
During his lifetime, the dog was held up in Japanese culture as an example of loyalty and fidelity. Well after his death, he continues to be remembered in worldwide popular culture, with statues, movies, books, and appearances in various media. HachikΕ is known in Japanese as chΕ«ken HachikΕ (εΏ η¬γγε ¬) "faithful dog HachikΕ", hachi meaning "eight" and the suffix -kΕ indicating affection.
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- "HachikΕ" | 2020-01-28 | 172 Upvotes 41 Comments
π Ben Franklin effect
The Ben Franklin effect is a proposed psychological phenomenon: a person who has already performed a favor for another is more likely to do another favor for the other than if they had received a favor from that person. An explanation for this is cognitive dissonance. People reason that they help others because they like them, even if they do not, because their minds struggle to maintain logical consistency between their actions and perceptions.
The Benjamin Franklin effect, in other words, is the result of one's concept of self coming under attack. Every person develops a persona, and that persona persists because inconsistencies in one's personal narrative get rewritten, redacted, and misinterpreted.
π The Market for Lemons
"The Market for Lemons: Quality Uncertainty and the Market Mechanism" is a well-known 1970 paper by economist George Akerlof which examines how the quality of goods traded in a market can degrade in the presence of information asymmetry between buyers and sellers, leaving only "lemons" behind. In American slang, a lemon is a car that is found to be defective after it has been bought.
Suppose buyers cannot distinguish between a high-quality car (a "peach") and a "lemon". Then they are only willing to pay a fixed price for a car that averages the value of a "peach" and "lemon" together (pavg). But sellers know whether they hold a peach or a lemon. Given the fixed price at which buyers will buy, sellers will sell only when they hold "lemons" (since plemonΒ <Β pavg) and they will leave the market when they hold "peaches" (since ppeach > pavg). Eventually, as enough sellers of "peaches" leave the market, the average willingness-to-pay of buyers will decrease (since the average quality of cars on the market decreased), leading to even more sellers of high-quality cars to leave the market through a positive feedback loop.
Thus the uninformed buyer's price creates an adverse selection problem that drives the high-quality cars from the market. Adverse selection is a market mechanism that can lead to a market collapse.
Akerlof's paper shows how prices can determine the quality of goods traded on the market. Low prices drive away sellers of high-quality goods, leaving only lemons behind. In 2001, Akerlof, along with Michael Spence, and Joseph Stiglitz, jointly received the Nobel Memorial Prize in Economic Sciences, for their research on issues related to asymmetric information.
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- "The Market for Lemons" | 2019-01-13 | 82 Upvotes 44 Comments
π Wikipedia: Articles for Deletion/Minecraft (2010)
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- "Wikipedia: Articles for Deletion/Minecraft (2010)" | 2023-12-20 | 28 Upvotes 15 Comments
π Chorded keyboard
A keyset or chorded keyboard (also called a chorded keyset, chord keyboard or chording keyboard) is a computer input device that allows the user to enter characters or commands formed by pressing several keys together, like playing a "chord" on a piano. The large number of combinations available from a small number of keys allows text or commands to be entered with one hand, leaving the other hand free. A secondary advantage is that it can be built into a device (such as a pocket-sized computer or a bicycle handlebar) that is too small to contain a normal-sized keyboard.
A chorded keyboard minus the board, typically designed to be used while held in the hand, is called a keyer. Douglas Engelbart introduced the chorded keyset as a computer interface in 1968 at what is often called "The Mother of All Demos".
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- "Chorded keyboard" | 2019-08-20 | 97 Upvotes 59 Comments
π IBM Simon
The IBM Simon Personal Communicator (simply known as IBM Simon) is a handheld, touchscreen PDA designed by International Business Machines (IBM), and manufactured by Mitsubishi Electric. BellSouth Cellular Corp. distributed the Simon Personal Communicator in the United States between August 1994 and February 1995, selling 50,000 units. The Simon Personal Communicator was the first personal digital assistant or PDA to include telephony features. The battery lasted only an hour, and flip phones became increasingly slim which led to its demise.
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- "IBM Simon" | 2022-02-03 | 47 Upvotes 17 Comments
- "IBM Simon" | 2014-08-12 | 43 Upvotes 4 Comments
π Someone took the Big Idea that I was passionate about. Now what?
Amie Street was an indie online music store and social network service created in 2006 by Brown University seniors Elliott Breece, Elias Roman, and Joshua Boltuch, in Providence, Rhode Island. The site was notable for its demand-based pricing. The company was later moved to Long Island City in Queens, New York. In late 2010, the site was sold to Amazon who redirected customers to their own website.
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- "Someone took the Big Idea that I was passionate about. Now what?" | 2007-06-05 | 6 Upvotes 10 Comments
π M65 Atomic Cannon
The M65 atomic cannon, often called "Atomic Annie", was an artillery piece built by the United States and capable of firing a nuclear device. It was developed in the early 1950s, at the beginning of the Cold War, and fielded, between April 1955 and December 1962, in West Germany, South Korea and on Okinawa.
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- "M65 Atomic Cannon" | 2019-11-10 | 47 Upvotes 49 Comments