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๐ Sogen Kato
Sogen Kato (ๅ ่ค ๅฎ็พ, Katล Sลgen; 22 July 1899 โ c.โNovember 1978) was a Japanese man thought to have been Tokyo's oldest man until July 2010, when his mummified corpse was found in his bedroom. It was concluded he had likely died in November 1978, aged 79, and his family had never reported his death. Relatives had rebuffed attempts by ward officials to see Kato in preparations for Respect for the Aged Day later that year, citing many reasons from him being a "human vegetable" to becoming a sokushinbutsu (Buddhist mummy). An autopsy could not determine the cause of Kato's death.
The discovery of Kato's remains sparked a search for other missing centenarians lost due to poor recordkeeping by officials. A study following the discovery of Kato's remains found that police did not know if 234,354 people over the age of 100 were still alive. Poor recordkeeping was to blame for many of the cases, officials admitted. One of Kato's relatives was found guilty of fraud; his relatives claimed ยฅ9,500,000 (US$117,939; ยฃ72,030) of the pension meant for Kato.
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- "Sogen Kato" | 2026-06-20 | 19 Upvotes 6 Comments
๐ Zenzizenzizenzic
Zenzizenzizenzic is an obsolete form of mathematical notation representing the eighth power of a number (that is, the zenzizenzizenzic of x is x8), dating from a time when powers were written out in words rather than as superscript numbers. This term was suggested by Robert Recorde, a 16th-century Welsh writer of popular mathematics textbooks, in his 1557 work The Whetstone of Witte (although his spelling was zenzizenzizenzike); he wrote that it "doeth represent the square of squares squaredly".
At the time Recorde proposed this notation, there was no easy way of denoting the powers of numbers other than squares and cubes. The root word for Recorde's notation is zenzic, which is a German spelling of the medieval Italian word censo, meaning "squared". Since the square of a square of a number is its fourth power, Recorde used the word zenzizenzic (spelled by him as zenzizenzike) to express it. Some of the terms had prior use in Latin "zenzicubicus", "zensizensicus" and "zensizenzum". Similarly, as the sixth power of a number is equal to the square of its cube, Recorde used the word zenzicubike to express it; a more modern spelling, zenzicube, is found in Samuel Jeake's Logisticelogia. Finally, the word zenzizenzizenzic denotes the square of the square of a number's square, which is its eighth power: in modern notation,
Recorde proposed three mathematical terms by which any power (that is, index or exponent) greater than 1 could be expressed: zenzic, i.e. squared; cubic; and sursolid, i.e. raised to a prime number greater than three, the smallest of which is five. Sursolids were as follows: 5 was the first; 7, the second; 11, the third; 13, the fourth; etc.
Therefore, a number raised to the power of six would be zenzicubic, a number raised to the power of seven would be the second sursolid, hence bissursolid (not a multiple of two and three), a number raised to the twelfth power would be the "zenzizenzicubic" and a number raised to the power of ten would be the square of the (first) sursolid. The fourteenth power was the square of the second sursolid, and the twenty-second was the square of the third sursolid.
Curiously, Jeake's text appears to designate a written exponent of 0 as being equal to an "absolute number, as if it had no Mark", thus using the notation x0 to refer to x alone, while a written exponent of 1, in his text, denotes "the Root of any number", thus using the notation x1 to refer to what is now known to be x0.5.
The word, as well as the system, is obsolete except as a curiosity; the Oxford English Dictionary (OED) has only one citation for it. As well as being a mathematical oddity, it survives as a linguistic oddity: zenzizenzizenzic has more Zs than any other word in the OED.
Samuel Jeake the Younger gives zenzizenzizenzizenzike (the square of the square of the square of the square, or 16th power) in a table in A Compleat Body of Arithmetick:
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- "Zenzizenzizenzic" | 2026-06-19 | 117 Upvotes 34 Comments
- "Zenzizenzizenzic" | 2016-07-21 | 258 Upvotes 89 Comments
๐ Rationale for the 2026 Iran War
Numerous reasons have been given by different people for the 2026 Iran war, which began when the United States and Israel launched surprise airstrikes on Iran on 28 February 2026. The reasons are described as diverse, changing, and at times contradictory.
US and Israeli officials have framed it as a preemptive war of self-defense. They argue that diplomacy had failed to contain the unacceptable and potentially existential threats of Iran's nuclear program and ballistic missiles. They also argued the strikes were justified as a response to Iran's regional activities (support for proxy groups, attacks on shipping, etc.) and its violent suppression of domestic protests in January 2026. Critics have described it as a war of choice. Some analysts describe the war as a classic "security dilemma", where both sides saw the other's military buildup as threatening, making conflict increasingly likely even if neither side necessarily wanted full-scale war. Regional actors, like Saudi Arabia and the United Arab Emirates, share many of the US and Israel's war aims though differing on whether to pursue war or diplomacy.
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- "Rationale for the 2026 Iran War" | 2026-06-18 | 12 Upvotes 3 Comments
๐ Balkan Sworn Virgins
A sworn virgin is a traditional gender variant or third gender social role in certain Balkan cultures, consisting of people who are assigned female at birth but take a vow of chastity and live the rest of their lives socially recognized as men. The practice is most common in patriarchal northern Albania, Kosovo and Montenegro, where burrnesha are recognized under the tribal Kanun law, but also exists, or has existed, to a lesser extent in other parts of the western Balkans, including Bosnia, Dalmatia (Croatia), Serbia and North Macedonia.
In times when women had a prescribed role, burrnesha gave up their preexisting sexual, reproductive and social identities to acquire the same freedoms as men. They could dress as men, be head of the household, move freely in social situations, and take work traditionally open only to men. National Geographic's Taboo estimated in 2002 that there were fewer than 102 Albanian sworn virgins left. As of 2022, while there were no exact figures, twelve burrnesha were estimated to remain in Northern Albania and Kosovo.
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- "Balkan Sworn Virgins" | 2026-06-15 | 26 Upvotes 3 Comments
๐ Abu Fanous
Abu Fanous (Arabic: ุฃุจู ูุงููุณ) is a mysterious light phenomenon observed by travellers in the Arabian desert, mainly the Eastern Province, Riyadh, Najd, Rub' al-Khali and the Gulf. It appears at dawn or during the night as an orb or headlight that moves unpredictably and lures people into the desert, then vanishes without a trace.
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- "Abu Fanous" | 2026-06-14 | 81 Upvotes 16 Comments
๐ Naismith's Rule
Naismith's rule helps with the planning of a walking or hiking expedition by calculating how long it will take to travel the intended route, including any extra time taken when walking uphill. This rule of thumb was devised by William W. Naismith, a Scottish mountaineer, in 1892. A modern version can be formulated as follows:
- Allow one hour for every 3 miles (5ย km) forward, plus an additional hour for every 2,000 feet (600ย m) of ascent.
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- "Naismith's Rule" | 2024-04-11 | 47 Upvotes 14 Comments
๐ The Indiana Pi Bill
The Indiana Pi Bill is the popular name for bill #246 of the 1897 sitting of the Indiana General Assembly, one of the most notorious attempts to establish mathematical truth by legislative fiat. Despite its name, the main result claimed by the bill is a method to square the circle, rather than to establish a certain value for the mathematical constant ฯ, the ratio of the circumference of a circle to its diameter. The bill, written by the crank Edward J. Goodwin, does imply various incorrect values of ฯ, such as 3.2. The bill never became law, due to the intervention of Professor C. A. Waldo of Purdue University, who happened to be present in the legislature on the day it went up for a vote.
The impossibility of squaring the circle using only compass and straightedge constructions, suspected since ancient times, was rigorously proven in 1882 by Ferdinand von Lindemann. Better approximations of ฯ than those implied by the bill have been known since ancient times.
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- "Indiana Pi Bill" | 2025-03-19 | 12 Upvotes 3 Comments
- "In 1897, an Indiana bill was going to redefine Pi" | 2013-10-17 | 34 Upvotes 13 Comments
๐ I Have No Mouth, and I Must Scream (1967)
"I Have No Mouth, and I Must Scream" is a post-apocalyptic science fiction short story by American writer Harlan Ellison. It was first published in the March 1967 issue of IF: Worlds of Science Fiction.
It won a Hugo Award in 1968. The name was also used for a short story collection of Ellison's work, featuring this story. It was reprinted by the Library of America, collected in volume two (Terror and the Uncanny, from the 1940s to Now) of American Fantastic Tales.
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- "I Have No Mouth, and I Must Scream" | 2026-06-12 | 10 Upvotes 1 Comments
- "I Have No Mouth, and I Must Scream (1967)" | 2023-10-12 | 46 Upvotes 6 Comments
๐ WikiLambda the Ultimate
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- "WikiLambda the Ultimate" | 2026-06-11 | 62 Upvotes 13 Comments
๐ Fruit machine (homosexuality test)
"Fruit machine" is a term for a device developed in Canada by Frank Robert Wake that was supposed to be able to identify gay men (derogatorily referred to as "fruits"). The subjects were made to view pornography; the device then measured the diameter of the pupils of the eyes (pupillary response test), perspiration, and pulse for a supposed erotic response.
The "fruit machine" was employed in Canada in the 1950s and 1960s during a campaign to eliminate all gay men from the civil service, the Royal Canadian Mounted Police (RCMP), and the military. A substantial number of workers did lose their jobs. Although funding for the "fruit machine" project was cut off in the late 1960s, the investigations continued, and the RCMP collected files on over 9,000 "suspected" gay people.
The chair employed resembled that used by dentists. It had a pulley with a camera going towards the pupils, with a black box located in front of it that displayed pictures. The pictures ranged from the mundane to sexually explicit photos of men and women. It had previously been determined that the pupils would dilate in relation to the amount of interest in the picture per the technique termed 'the pupillary response test'.
People were first led to believe that the machine's purpose was to rate stress. After knowledge of its real purpose became widespread, few people volunteered for it.
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- "Fruit machine (homosexuality test)" | 2019-06-27 | 40 Upvotes 35 Comments