Topic: Project-independent assessment
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🔗 Pfeilstorch
The term Pfeilstorch (German for "arrow stork") is given to storks injured by an arrow while wintering in Africa, before returning to Europe with the arrow stuck in their bodies. To date, around 25 Pfeilstörche have been documented.
The first and most famous Pfeilstorch was a white stork found in 1822 near the German village of Klütz, in the state of Mecklenburg-Vorpommern. It was carrying a 30-inch (76 cm) spear from central Africa in its neck. The specimen was stuffed and can be seen today in the zoological collection of the University of Rostock. It is therefore referred to as the Rostocker Pfeilstorch.
This Pfeilstorch was crucial in understanding the migration of European birds. Before migration was understood, people struggled to explain the sudden annual disappearance of birds like the white stork and barn swallow. Besides migration, some theories of the time held that they turned into other kinds of birds, mice, or hibernated underwater during the winter, and such theories were even propagated by zoologists of the time. The Rostocker Pfeilstorch in particular proved that birds migrate long distances to wintering grounds.
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- "Pfeilstorch" | 2025-08-16 | 74 Upvotes 25 Comments
- "Pfeilstorch" | 2023-05-14 | 211 Upvotes 53 Comments
- "Pfeilstorch" | 2021-07-22 | 142 Upvotes 20 Comments
🔗 Larry (Cat)
Larry (born c. January 2007) is a British domestic tabby cat who has served as Chief Mouser to the Cabinet Office at 10 Downing Street since 2011. He is cared for by Downing Street staff, and is not the personal property of the prime minister of the United Kingdom. Larry has lived at 10 Downing Street during the premierships of six prime ministers: David Cameron, Theresa May, Boris Johnson, Liz Truss, Rishi Sunak and Keir Starmer. He is the first cat to be officially given the title of Chief Mouser, according to the Downing Street government website.
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- "Larry (Cat)" | 2025-07-04 | 350 Upvotes 74 Comments
🔗 List of games that Buddha would not play
The Buddhist games list is a list of games that Gautama Buddha is reputed to have said that he would not play and that his disciples should likewise not play, because he believed them to be a 'cause for negligence'. This list dates from the 6th or 5th century BCE and is the earliest known list of games.
There is some debate about the translation of some of the games mentioned, and the list given here is based on the translation by T. W. Rhys Davids of the Brahmajāla Sutta and is in the same order given in the original. The list is duplicated in a number of other early Buddhist texts, including the Vinaya Pitaka.
- Games on boards with 8 or 10 rows. This is thought to refer to ashtapada and dasapada respectively, but later Sinhala commentaries refer to these boards also being used with games involving dice.
- The same games played on imaginary boards. Akasam astapadam was an ashtapada variant played with no board, literally "astapadam played in the sky". A correspondent in the American Chess Bulletin identifies this as likely the earliest literary mention of a blindfold chess variant.
- Games of marking diagrams on the floor such that the player can only walk on certain places. This is described in the Vinaya Pitaka as "having drawn a circle with various lines on the ground, there they play avoiding the line to be avoided". Rhys Davids suggests that it may refer to parihāra-patham, a form of hop-scotch.
- Games where players either remove pieces from a pile or add pieces to it, with the loser being the one who causes the heap to shake (similar to the modern game pick-up sticks).
- Games of throwing dice.
- "Dipping the hand with the fingers stretched out in lac, or red dye, or flour-water, and striking the wet hand on the ground or on a wall, calling out 'What shall it be?' and showing the form required—elephants, horses, &c."
- Ball games.
- Blowing through a pat-kulal, a toy pipe made of leaves.
- Ploughing with a toy plough.
- Playing with toy windmills made from palm leaves.
- Playing with toy measures made from palm leaves.
- Playing with toy carts.
- Playing with toy bows.
- Guessing at letters traced with the finger in the air or on a friend's back.
- Guessing a friend's thoughts.
- Imitating deformities.
Although the modern game of chess had not been invented at the time the list was made, earlier chess-like games such as chaturaji may have existed. H.J.R. Murray refers to Rhys Davids' 1899 translation, noting that the 8×8 board game is most likely ashtapada while the 10×10 game is dasapada. He states that both are race games.
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- "List of games that Buddha would not play" | 2025-06-24 | 13 Upvotes 6 Comments
- "List of games that Buddha would not play" | 2021-12-30 | 199 Upvotes 140 Comments
- "List of games that Buddha would not play" | 2020-08-12 | 24 Upvotes 9 Comments
🔗 Purple Earth Hypothesis
The Purple Earth Hypothesis (PEH) is an astrobiological hypothesis, first proposed by molecular biologist Shiladitya DasSarma in 2007, that the earliest photosynthetic life forms of Early Earth were based on the simpler molecule retinal rather than the more complex porphyrin-based chlorophyll, making the surface biosphere appear purplish rather than its current greenish color. It is estimated to have occurred between 3.5 and 2.4 billion years ago during the Archean eon, prior to the Great Oxygenation Event and Huronian glaciation.
Retinal-containing cell membranes exhibit a single light absorption peak centered in the energy-rich green-yellow region of the visible spectrum, but transmit and reflect red and blue light, resulting in a magenta color. Chlorophyll pigments, in contrast, absorb red and blue light, but little or no green light, which results in the characteristic green reflection of plants, green algae, cyanobacteria and other organisms with chlorophyllic organelles. The simplicity of retinal pigments in comparison to the more complex chlorophyll, their association with isoprenoid lipids in the cell membrane, as well as the discovery of archaeal membrane components in ancient sediments on the Early Earth are consistent with an early appearance of life forms with purple membranes prior to the turquoise of the Canfield ocean and later green photosynthetic organisms.
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- "Purple Earth Hypothesis" | 2025-07-24 | 286 Upvotes 79 Comments
🔗 Gödel's Loophole
Gödel's Loophole is a "inner contradiction" in the Constitution of the United States which Austrian-German-American logician, mathematician, and analytic philosopher Kurt Gödel claimed to have discovered in 1947. The flaw would have allowed the American democracy to be legally turned into a dictatorship. Gödel told his friend Oskar Morgenstern about the existence of the flaw and Morgenstern told Albert Einstein about it at the time, but Morgenstern, in his recollection of the incident in 1971, never mentioned the exact problem as Gödel saw it. This has led to speculation about the precise nature of what has come to be called "Gödel's Loophole". It has been called "one of the great unsolved problems of constitutional law."
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- "Gödel's Loophole" | 2025-08-06 | 21 Upvotes 11 Comments
- "Gödel's Loophole" | 2023-07-24 | 21 Upvotes 4 Comments
- "Gödel's Loophole" | 2023-04-05 | 12 Upvotes 2 Comments
- "Gödel's Loophole" | 2023-01-20 | 10 Upvotes 1 Comments
- "Gödel's Loophole" | 2021-03-25 | 131 Upvotes 130 Comments
🔗 Guédelon Castle
Guédelon Castle (Château de Guédelon) is a castle currently under construction near Treigny, France. The castle is the focus of an experimental archaeology project aimed at recreating a 13th-century castle and its environment using period technique, dress, and material.
In order to fully investigate the technology required in the past, the project is using only period construction techniques, tools, and costumes. Materials, including wood and stone, are all obtained locally. Jacques Moulin, chief architect for the project, designed the castle according to the architectural model developed during the 12th and 13th centuries by Philip II of France.
Construction started in 1997 under Michel Guyot, owner of Château de Saint-Fargeau, a castle in Saint-Fargeau 13 kilometres away. The site was chosen according to the availability of construction materials: an abandoned stone quarry, in a large forest, with a nearby pond. The site is in a rural woodland area and the nearest town is Saint-Sauveur-en-Puisaye, about 5 kilometres (3.1 mi) to the northeast.
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- "Guédelon Castle" | 2025-08-12 | 17 Upvotes 3 Comments
- "Guédelon Castle" | 2020-04-11 | 202 Upvotes 40 Comments
🔗 Iron law of oligarchy
The iron law of oligarchy is a political theory, first developed by the German sociologist Robert Michels in his 1911 book, Political Parties. It asserts that rule by an elite, or oligarchy, is inevitable as an "iron law" within any democratic organization as part of the "tactical and technical necessities" of organization.
Michels's theory states that all complex organizations, regardless of how democratic they are when started, eventually develop into oligarchies. Michels observed that since no sufficiently large and complex organization can function purely as a direct democracy, power within an organization will always get delegated to individuals within that group, elected or otherwise.
Using anecdotes from political parties and trade unions struggling to operate democratically to build his argument in 1911, Michels addressed the application of this law to representative democracy, and stated: "Who says organization, says oligarchy." He went on to state that "Historical evolution mocks all the prophylactic measures that have been adopted for the prevention of oligarchy."
According to Michels all organizations eventually come to be run by a "leadership class", who often function as paid administrators, executives, spokespersons or political strategists for the organization. Far from being "servants of the masses", Michels argues this "leadership class," rather than the organization's membership, will inevitably grow to dominate the organization's power structures. By controlling who has access to information, those in power can centralize their power successfully, often with little accountability, due to the apathy, indifference and non-participation most rank and file members have in relation to their organization's decision-making processes. Michels argues that democratic attempts to hold leadership positions accountable are prone to fail, since with power comes the ability to reward loyalty, the ability to control information about the organization, and the ability to control what procedures the organization follows when making decisions. All of these mechanisms can be used to strongly influence the outcome of any decisions made 'democratically' by members.
Michels stated that the official goal of representative democracy of eliminating elite rule was impossible, that representative democracy is a façade legitimizing the rule of a particular elite, and that elite rule, which he refers to as oligarchy, is inevitable. Later Michels migrated to Italy and joined Benito Mussolini's Fascist Party, as he believed this was the next legitimate step of modern societies. The thesis became popular once more in post-war America with the publication of Union Democracy: The Internal Politics of the International Typographical Union (1956) and during the red scare brought about by McCarthyism.
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- "Iron Law of Oligarchy" | 2025-07-29 | 26 Upvotes 11 Comments
- "Iron law of oligarchy" | 2015-11-26 | 72 Upvotes 88 Comments
🔗 $100 Hamburger
$100 hamburger ("hundred-dollar hamburger") is aviation slang for the excuse a general aviation pilot might use to fly.
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- "$100 Hamburger" | 2025-06-14 | 139 Upvotes 52 Comments
🔗 Mumps (Programming Language)
MUMPS ("Massachusetts General Hospital Utility Multi-Programming System"), or M, is an imperative, high-level programming language with an integrated transaction processing key–value database. It was originally developed at Massachusetts General Hospital for managing patient medical records and hospital laboratory information systems.
MUMPS technology has since expanded as the predominant database for health information systems and electronic health records in the United States. MUMPS-based information systems, such as Epic Systems', provide health information services for over 78% of patients across the U.S.
A unique feature of the MUMPS technology is its integrated database language, allowing direct, high-speed read-write access to permanent disk storage.
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- "Mumps (Programming Language)" | 2025-06-13 | 103 Upvotes 71 Comments
🔗 Slopsquatting
Slopsquatting is a type of cybersquatting. It is the practice of registering a non-existent software package name that a large language model (LLM) may hallucinate in its output, whereby someone unknowingly may copy-paste and install the software package without realizing it is fake. Attempting to install a non-existent package should result in an error, but some have exploited this for their gain in the form of typosquatting.
The name is a portmanteau of "slop" and "typosquatting".
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- "Slopsquatting" | 2025-08-06 | 105 Upvotes 49 Comments