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π Erfurt Latrine Disaster of 1184
In July 1184, Henry VI, King of Germany (later Holy Roman Emperor), held court at a Hoftag in the Petersberg Citadel in Erfurt. On the morning of 26 July, the combined weight of the assembled nobles caused the wooden second story floor of the building to collapse and most of them fell through into the latrine cesspit below the ground floor, where about 60 of them drowned in liquid excrement. This event is called Erfurter Latrinensturz (lit.β'Erfurt latrine fall') in several German sources.
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- "Erfurt Latrine Disaster" | 2022-11-26 | 122 Upvotes 42 Comments
- "Erfurt Latrine Disaster of 1184" | 2022-11-09 | 22 Upvotes 2 Comments
π Usenet personality
A Usenet personality was a particular kind of internet personality who gained a certain level of notoriety from posting on the Usenet discussion forum. Since its inception, Usenet newsgroups have attracted a wide variety of users. Some posters achieved a certain amount of fame and celebrity within Usenet circles because of their unusual or humorous writings.
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- "Usenet personality" | 2026-01-26 | 112 Upvotes 84 Comments
π Three Sisters (Agriculture)
The Three Sisters are the three main agricultural crops of various Indigenous peoples of North America: squash, maize ("corn"), and climbing beans (typically tepary beans or common beans). In a technique known as companion planting, the maize and beans are often planted together in mounds formed by hilling soil around the base of the plants each year; squash is typically planted between the mounds. The cornstalk serves as a trellis for climbing beans, the beans fix nitrogen in their root nodules and stabilize the maize in high winds, and the wide leaves of the squash plant shade the ground, keeping the soil moist and helping prevent the establishment of weeds.
Indigenous peoples throughout North America cultivated different varieties of the Three Sisters, adapted to varying local environments. The individual crops and their use in polyculture originated in Mesoamerica; where squash was domesticated first, followed by maize and then beans, over a period of 5,000β6,500 years. European records from the sixteenth century describe highly productive Indigenous agriculture based on cultivation of the Three Sisters throughout what are now the Eastern United States and Canada, where the crops were used for both food and trade. Geographer Carl O. Sauer described the Three Sisters as "a symbiotic plant complex of North and Central America without an equal elsewhere".
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- "Three Sisters (Agriculture)" | 2023-04-11 | 86 Upvotes 12 Comments
π Cummingtonite
Cummingtonite ( KUM-ing-tΙ-nyte) is a metamorphic amphibole with the chemical composition (Mg,Fe2+
)
2(Mg,Fe2+
)
5Si
8O
22(OH)
2, magnesium iron silicate hydroxide.
Monoclinic cummingtonite is compositionally similar and polymorphic with orthorhombic anthophyllite, which is a much more common form of magnesium-rich amphibole, the latter being metastable.
Cummingtonite shares few compositional similarities with alkali amphiboles such as arfvedsonite, glaucophane-riebeckite. There is little solubility between these minerals due to different crystal habit and inability of substitution between alkali elements and ferro-magnesian elements within the amphibole structure.
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- "Cummingtonite" | 2023-02-21 | 23 Upvotes 5 Comments
π Underwater Basket Weaving
Underwater basket weaving is an idiom referring pejoratively to supposedly useless or absurd college or university courses and often generally to refer to a perceived decline in educational standards.
The term also serves as an intentionally humorous generic answer to questions about an academic degree. It is also used to humorously refer to any non-academic elective course, specifically one that does not count towards any graduation requirements.
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- "Underwater Basket Weaving" | 2020-05-25 | 19 Upvotes 4 Comments
π Prophetic Perfect Tense
The prophetic perfect tense is a literary technique used in the Bible that describes future events that are so certain to happen that they are referred to in the past tense as if they had already happened.
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- "Prophetic Perfect Tense" | 2023-09-28 | 154 Upvotes 96 Comments
π List of Unusual Deaths
This is a list of unusual deaths. This list includes only unique or extremely rare circumstances of death recorded throughout history, noted as being unusual by multiple sources. Oxford Dictionaries defines the word unusual as "not habitually or commonly occurring or done" and "remarkable or interesting because different from or better than others".
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- "List of Unusual Deaths" | 2013-01-03 | 21 Upvotes 4 Comments
π Pointing machine
A pointing machine is a measuring tool used by stone sculptors and woodcarvers to accurately copy plaster, clay or wax sculpture models into wood or stone. In essence the device is a pointing needle that can be set to any position and then fixed. It further consists of brass or stainless steel rods and joints which can be placed into any position and then tightened. It is not actually a machine; its name is derived from the Italian macchinetta di punta. The invention of the tool has been ascribed to both the French sculptor and medallist Nicolas-Marie Gatteaux (1751β1832) and to the British sculptor John Bacon (1740β1799). It was later perfected by Canova. However, similar devices were used in ancient times, when the copying of Greek sculptures for the Roman market was a large industry.
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- "Pointing machine" | 2018-03-21 | 41 Upvotes 3 Comments
π Detention of Mark Bernstein
On 11 March 2022, Mark Izraylevich Bernstein (Russian: ΠΠ°ΡΠΊ ΠΠ·ΡΠ°ΠΉΠ»Π΅Π²ΠΈΡ ΠΠ΅ΡΠ½ΡΡΠ΅ΠΉΠ½), a Belarusian blogger and editor of the Russian-language Wikipedia based in Minsk, was detained by the Belarusian GUBOPiK security force after online accusations of violating the 2022 Russian fake news law for his editing of Wikipedia articles on the topic of the 2022 Russian invasion of Ukraine. He was sentenced to 15 days' administrative arrest under Article 24.3 of the Administrative Code of Belarus (for disobedience to police officers).
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- "Detention of Mark Bernstein" | 2022-06-23 | 112 Upvotes 21 Comments
π Magdeburg Hemispheres
The Magdeburg hemispheres are a pair of large copper hemispheres, with mating rims. They were used to demonstrate the power of atmospheric pressure. When the rims were sealed with grease and the air was pumped out, the sphere contained a vacuum and could not be pulled apart by teams of horses. The Magdeburg hemispheres were invented by German scientist and mayor of Magdeburg, Otto von Guericke, to demonstrate the air pump that he had invented, and the concept of atmospheric pressure. The first artificial vacuum had been produced a few years earlier by Evangelista Torricelli, and had inspired Guericke to design the world's first vacuum pump, which consisted of a piston and cylinder with one-way flap valves. The hemispheres became popular in physics lectures as an illustration of the strength of air pressure, and are still used in education. A pair of the original hemispheres are preserved in the Deutsches Museum in Munich.
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- "Magdeburg Hemispheres" | 2018-12-28 | 49 Upvotes 18 Comments