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๐ Dolgopolsky list
The Dolgopolsky list is a word list compiled by Aharon Dolgopolsky in 1964. It lists the 15 lexical items that have the most semantic stability, i.e. they are the 15 words least likely to be replaced by other words as a language evolves. It was based on a study of 140 languages from across Eurasia.
The words, with the first being the most stable, are:
- I/me
- two/pair
- you (singular, informal)
- who/what
- tongue
- name
- eye
- heart
- tooth
- no/not
- nail (finger-nail)
- louse/nit
- tear/teardrop
- water
- dead
The first item in the list, I/me, has been replaced in none of the 140 languages during their recorded history; the fifteenth, dead, has been replaced in 25% of the languages.
The twelfth item, louse/nit, is well kept in the North Caucasian languages, Dravidian and Turkic, but not in other proto-languages.
Discussed on
- "Dolgopolsky list" | 2015-01-28 | 42 Upvotes 13 Comments
๐ Plato: Allegory of the Cave
The Allegory of the Cave, or Plato's Cave, is an allegory presented by the Greek philosopher Plato in his work Republic (514aโ520a) to compare "the effect of education (ฯฮฑฮนฮดฮตฮฏฮฑ) and the lack of it on our nature". It is written as a dialogue between Plato's brother Glaucon and his mentor Socrates, narrated by the latter. The allegory is presented after the analogy of the sun (508bโ509c) and the analogy of the divided line (509dโ511e).
In the allegory "The Cave", Plato describes a group of people who have lived chained to the wall of a cave all their lives, facing a blank wall. The people watch shadows projected on the wall from objects passing in front of a fire behind them and give names to these shadows. The shadows are the prisoners' reality, but are not accurate representations of the real world. The shadows represent the fragment of reality that we can normally perceive through our senses, while the objects under the sun represent the true forms of objects that we can only perceive through reason. Three higher levels exist: the natural sciences; mathematics, geometry, and deductive logic; and the theory of forms.
Socrates explains how the philosopher is like a prisoner who is freed from the cave and comes to understand that the shadows on the wall are actually not the direct source of the images seen. A philosopher aims to understand and perceive the higher levels of reality. However, the other inmates of the cave do not even desire to leave their prison, for they know no better life.
Socrates remarks that this allegory can be paired with previous writings, namely the analogy of the sun and the analogy of the divided line.
๐ Smith Chart
The Smith chart, invented by Phillip H. Smith (1905โ1987), and T. Mizuhashi, is a graphical calculator or nomogram designed for electrical and electronics engineers specializing in radio frequency (RF) engineering to assist in solving problems with transmission lines and matching circuits. The Smith chart can be used to simultaneously display multiple parameters including impedances, admittances, reflection coefficients, scattering parameters, noise figure circles, constant gain contours and regions for unconditional stability, including mechanical vibrations analysis. The Smith chart is most frequently used at or within the unity radius region. However, the remainder is still mathematically relevant, being used, for example, in oscillator design and stability analysis. While the use of paper Smith charts for solving the complex mathematics involved in matching problems has been largely replaced by software based methods, the Smith charts display is still the preferred method of displaying how RF parameters behave at one or more frequencies, an alternative to using tabular information. Thus most RF circuit analysis software includes a Smith chart option for the display of results and all but the simplest impedance measuring instruments can display measured results on a Smith chart display.
Discussed on
- "Smith Chart" | 2019-11-22 | 66 Upvotes 35 Comments
๐ Phaistos Disc
The Phaistos Disc (also spelled Phaistos Disk, Phaestos Disc) is a disk of fired clay from the Minoan palace of Phaistos on the island of Crete, possibly dating to the middle or late Minoan Bronze Age (second millennium B.C.). The disk is about 15ย cm (5.9ย in) in diameter and covered on both sides with a spiral of stamped symbols. Its purpose and meaning, and even its original geographical place of manufacture, remain disputed, making it one of the most famous mysteries of archaeology. This unique object is now on display at the archaeological museum of Heraklion.
The disc was discovered in 1908 by the Italian archaeologist Luigi Pernier in the Minoan palace-site of Phaistos, and features 241 tokens, comprising 45 distinct signs, which were apparently made by pressing hieroglyphic "seals" into a disc of soft clay, in a clockwise sequence spiraling toward the center of the disk.
The Phaistos Disc captured the imagination of amateur and professional archaeologists, and many attempts have been made to decipher the code behind the disc's signs. While it is not clear that it is a script, most attempted decipherments assume that it is; most additionally assume a syllabary, others an alphabet or logography. Attempts at decipherment are generally thought to be unlikely to succeed unless more examples of the signs are found, as it is generally agreed that there is not enough context available for a meaningful analysis.
Although the Phaistos Disc is generally accepted as authentic by archaeologists, a few scholars believe that the disc is a forgery or a hoax.
Discussed on
- "Phaistos Disc" | 2019-09-04 | 44 Upvotes 35 Comments
๐ Foldering
Foldering is the practice of communicating via messages saved to the "drafts" folder of an email or other electronic messaging account that is accessible by multiple people. The messages are never actually sent.
Foldering has been described as a digital equivalent of a dead drop.
Discussed on
- "Foldering" | 2023-08-17 | 35 Upvotes 4 Comments
๐ Lemon Law
Lemon laws are United States state laws that provide a remedy for purchasers of cars and other consumer goods in order to compensate for products that repeatedly fail to meet standards of quality and performance. Although many types of products can be defective, the term "lemon" is mostly used to describe defective motor vehicles, such as cars, trucks, and motorcycles.
Discussed on
- "Lemon Law" | 2021-07-05 | 31 Upvotes 15 Comments
๐ Known-Plaintext Attack
The known-plaintext attack (KPA) is an attack model for cryptanalysis where the attacker has access to both the plaintext (called a crib), and its encrypted version (ciphertext). These can be used to reveal further secret information such as secret keys and code books. The term "crib" originated at Bletchley Park, the British World War II decryption operation, where it was defined as:
A plain language (or code) passage of any length, usually obtained by solving one or more cipher or code messages, and occurring or believed likely to occur in a different cipher or code message, which it may provide a means of solving.
Discussed on
- "Known-Plaintext Attack" | 2021-05-29 | 50 Upvotes 19 Comments
๐ I Would Rather Cry In A BMW
"I would rather cry in a BMW" is a quotation that became an online sensation in the People's Republic of China in 2010. The old, long-familiar phrase was made famous by Ma Nuo, a 20-year-old female contestant on the television show Fei Cheng Wu Rao (also known in English as If You Are the One). The line was in response to a question by an unemployed suitor who asked if Ma would "ride a bicycle with him" on a date. The series of events have been summed up in the media with the quip "I would rather cry in a BMW than smile on a bicycle."
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- "I Would Rather Cry In A BMW" | 2013-12-16 | 15 Upvotes 8 Comments
๐ The art of not being governed
The Art of Not Being Governed: An Anarchist History of Upland Southeast Asia is a book-length anthropological and historical study of the Zomia highlands of Southeast Asia written by James C. Scott published in 2009. Zomia, as defined by Scott, includes all the lands at elevations above 300 meters stretching from the Central Highlands of Vietnam to Northeastern India. That encompasses parts of Vietnam, Cambodia, Laos, Thailand, and Myanmar, as well as four provinces of China. Zomia's 100 million residents are minority peoples "of truly bewildering ethnic and linguistic variety", he writes. Among them are the Akha, Hmong, Karen, Lahu, Mien, and Wa peoples.
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- "The art of not being governed" | 2021-11-12 | 10 Upvotes 2 Comments
๐ Ohio Nuclear Bribery Scandal
The Ohio nuclear bribery scandal is a 2020 political scandal in Ohio involving allegations that FirstEnergy paid roughly $60 million to Generation Now, a 501(c)(4) organization purportedly controlled by Speaker of the Ohio House of Representatives Larry Householder, in exchange for passing a $1.3 billion bailout for the struggling nuclear power operator. It was described as "likely the largest bribery, money laundering scheme ever perpetrated against the people of the state of Ohio" by U.S. Attorney David M. DeVillers, who charged Householder and four others with racketeering on July 21. According to prosecutors, FirstEnergy poured millions into the campaigns of 21 candidates during the 2018 Ohio House of Representatives election, which ultimately helped Householder replace Ryan Smith as Republican House speaker.
According to DeVillers in late July 2020, the investigation is far from over. "There are a lot of federal agents knocking on a lot of doors."
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- "Ohio Nuclear Bribery Scandal" | 2021-06-16 | 27 Upvotes 7 Comments