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๐ Yo (App)
Yo is a social mobile application for iOS, Android, and formerly also Windows Phone. Initially, the application's only function was to send the user's friends the word "yo" as a text and audio notification, but it has since been updated to enable users to attach links and location to their "Yo"s.
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- "Yo (App)" | 2021-04-15 | 18 Upvotes 1 Comments
๐ Jeppson's Malรถrt
Jeppson's Malรถrt is an American brand of bรคsk liqueur, a type of brรคnnvin flavored with anise or wormwood. Malรถrt was introduced in Chicago in the 1930s and was long produced by the Carl Jeppson Company. In 2018, as its last employee was retiring, the brand and company name were sold to CH Distillery of Chicago's Pilsen neighborhood. Jeppson's Malรถrt is named after Carl Jeppson, a Swedish immigrant who first distilled and popularized the liquor in Chicago. Malรถrt (literally moth herb) is the Swedish word for wormwood, which is the key ingredient in bรคsk. Malรถrt is extremely low in thujone, a chemical once prevalent in absinthe and similar drinks.
Known for its extremely bitter taste, Malรถrt has been described as "infamous" and "the worst booze ever". It can be found in some Chicago-area bars and liquor stores, and is growing in popularity, with sales of Malรถrt shots increasing from 0.4 million in 2007 to 7.9 million in 2022. However, it is rare to find elsewhere in the United States.
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- "Jeppson's Malรถrt" | 2025-01-14 | 22 Upvotes 24 Comments
๐ 1942โ1944 Musicians' Strike
On August 1, 1942, the American Federation of Musicians, at the instigation of union president James C. Petrillo, began a strike against the major American record companies because of disagreements over royalty payments. Beginning at midnight, July 31, 1942, no union musician could make commercial recordings for any commercial record company. That meant that a union musician was allowed to participate on radio programs and other kinds of musical entertainment, but not in a recording session. The 1942โ1944 musicians' strike remains the longest strike in entertainment history.
The strike did not affect musicians performing on live radio shows, in concerts, or, after October 27, 1943, on special recordings made by the record companies for V-Discs for distribution to the armed forces fighting World War II, because V-Discs were not available to the general public. However, the union did frequently threaten to withdraw musicians from the radio networks to punish individual network affiliates who were deemed "unfair" for violating the union's policy on recording network shows for repeat broadcasts.
The strike had a major impact on the American musical scene. At the time, union bands dominated popular music; after the strike, and partly as a result of it, the big bands began to decline and vocalists began to dominate popular music.
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- "1942โ1944 Musicians' Strike" | 2022-07-04 | 63 Upvotes 23 Comments
๐ _NSAKEY
_NSAKEY was a variable name discovered in an operating system from Microsoft in 1999. The variable contained a 1024-bit public key; such keys are used in cryptography for encryption and authentication. Due to the name it was speculated that the key was owned by the United States National Security Agency (the NSA) which would allow the intelligence agency to subvert any Windows user's security. Microsoft denied the speculation and said that the key's name came from the NSA being the technical review authority for U.S. cryptography export controls.
The key was discovered in a Windows NT 4 Service Pack 5 (which had been released unstripped of its symbolic debugging data) in August 1999 by Andrew D. Fernandes of Cryptonym Corporation.
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- "_NSAKEY" | 2022-01-29 | 15 Upvotes 1 Comments
- "_NSAKEY" | 2020-01-14 | 254 Upvotes 109 Comments
- "Microsoft _NSAKEY" | 2019-01-03 | 18 Upvotes 2 Comments
- "_NSAKEY (1999)" | 2013-07-12 | 8 Upvotes 10 Comments
๐ Self-Replicating Machine
A self-replicating machine is a type of autonomous robot that is capable of reproducing itself autonomously using raw materials found in the environment, thus exhibiting self-replication in a way analogous to that found in nature. The concept of self-replicating machines has been advanced and examined by Homer Jacobson, Edward F. Moore, Freeman Dyson, John von Neumann, Konrad Zuse and in more recent times by K. Eric Drexler in his book on nanotechnology, Engines of Creation (coining the term clanking replicator for such machines) and by Robert Freitas and Ralph Merkle in their review Kinematic Self-Replicating Machines which provided the first comprehensive analysis of the entire replicator design space. The future development of such technology is an integral part of several plans involving the mining of moons and asteroid belts for ore and other materials, the creation of lunar factories, and even the construction of solar power satellites in space. The von Neumann probe is one theoretical example of such a machine. Von Neumann also worked on what he called the universal constructor, a self-replicating machine that would be able to evolve and which he formalized in a cellular automata environment. Notably, Von Neumann's Self-Reproducing Automata scheme posited that open-ended evolution requires inherited information to be copied and passed to offspring separately from the self-replicating machine, an insight that preceded the discovery of the structure of the DNA molecule by Watson and Crick and how it is separately translated and replicated in the cell.
A self-replicating machine is an artificial self-replicating system that relies on conventional large-scale technology and automation. Although suggested earlier than in the late 1940's by Von Neumann, no self-replicating machine has been seen until today. Certain idiosyncratic terms are occasionally found in the literature. For example, the term clanking replicator was once used by Drexler to distinguish macroscale replicating systems from the microscopic nanorobots or "assemblers" that nanotechnology may make possible, but the term is informal and is rarely used by others in popular or technical discussions. Replicators have also been called "von Neumann machines" after John von Neumann, who first rigorously studied the idea. However, the term "von Neumann machine" is less specific and also refers to a completely unrelated computer architecture that von Neumann proposed and so its use is discouraged where accuracy is important. Von Neumann himself used the term universal constructor to describe such self-replicating machines.
Historians of machine tools, even before the numerical control era, sometimes figuratively said that machine tools were a unique class of machines because they have the ability to "reproduce themselves" by copying all of their parts. Implicit in these discussions is that a human would direct the cutting processes (later planning and programming the machines), and would then assemble the parts. The same is true for RepRaps, which are another class of machines sometimes mentioned in reference to such non-autonomous "self-replication". In contrast, machines that are truly autonomously self-replicating (like biological machines) are the main subject discussed here.
๐ Seattle Windshield Pitting Epidemic
The Seattle windshield pitting epidemic is a phenomenon which affected Bellingham, Seattle, and other communities of Washington state in April, 1954; it is considered an example of a mass delusion. It was characterized by widespread observation of previously unnoticed windshield holes, pits and dings, leading residents to believe that a common causative agent was at work. It was originally thought to be the work of vandals but the rate of pitting was so great that residents began to attribute it to everything from sand flea eggs to nuclear bomb testing.
Originating in Bellingham in March, police initially believed the work to be vandals using BB guns. However the pitting was soon observed in the nearby towns of Sedro Woolley and Mount Vernon and by mid-April, appeared to have spread to the town of Anacortes on Fidalgo Island.
Within a week, the news and the so-called "pitting epidemic" had reached metropolitan Seattle. As the newspapers began to feature the story, more and more reports of pitting were called in. Motorists began stopping police cars to report damage. Car lots and parking garages reported particularly severe attacks.
Several hypotheses for the widespread damage were postulated:
- Some thought that a new million-watt radio transmitter at nearby Jim Creek Naval Radio Station was producing waves that caused physical oscillations in glass;
- Some believed it to be the work of cosmic rays;
- Some reported seeing glass bubbles form right before their eyes, believing it to be the work of sand fleas.
By April 15, close to 3,000 windshields had been reported as affected. Mayor Allan Pomeroy contacted Washington Governor Arthur B. Langlie, then President Dwight D. Eisenhower asking for assistance.
Finally, Sergeant Max Allison of the Seattle police crime laboratory stated that the pitting reports consisted of "5 per cent hoodlum-ism, and 95 per cent public hysteria." By April 17, the pitting suddenly stopped.
The "Seattle Windshield Pitting Epidemic" as it is called has become a textbook case of collective delusion (not "mass hysteria" as reported). Although natural windshield pitting had been going on for some time, it was only when the media called public attention to it that people actually looked at their windshields and saw damage they had never noticed before.
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- "Seattle Windshield Pitting Epidemic" | 2020-11-22 | 13 Upvotes 1 Comments
๐ Immortal Game
The Immortal Game was a chess game played by Adolf Anderssen and Lionel Kieseritzky on 21 June 1851 in London, during a break of the first international tournament. The bold sacrifices made by Anderssen to secure victory have made it one of the most famous chess games of all time. Anderssen gave up both rooks and a bishop, then his queen, checkmating his opponent with his three remaining minor pieces. In 1996, Bill Hartston called the game an achievement "perhaps unparalleled in chess literature".
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- "Immortal Game" | 2019-12-31 | 227 Upvotes 52 Comments
๐ Wikipedia Turns 15
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- "Wikipedia Turns 15" | 2016-01-15 | 441 Upvotes 109 Comments
๐ The Invincible โ 1964 novel
The Invincible (Polish: Niezwyciฤลผony) is a hard science fiction novel by Polish writer Stanisลaw Lem, published in 1964.
The Invincible originally appeared as the title story in Lem's collection Niezwyciฤลผony i inne opowiadania ("The Invincible and Other Stories"). A translation into German was published in 1967; an English translation by Wendayne Ackerman, based on the German one, was published in 1973. A direct translation into English from Polish, by Bill Johnston, was published in 2006.
It was one of the first novels to explore the ideas of microrobots/smartdust/etc., artificial swarm intelligence and "necroevolution", a term suggested by Lem for evolution of non-living matter.
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- "The Invincible โ 1964 novel" | 2019-08-16 | 102 Upvotes 33 Comments
๐ Rondel Dagger
A rondel dagger or roundel dagger was a type of stiff-bladed dagger in Europe in the late Middle Ages (from the 14th century onwards), used by a variety of people from merchants to knights. It was worn at the waist and might be used as a utility tool, or worn into battle or in a jousting tournament as a side arm.
The rondel dagger featured a long, slim steel blade with a round or circular hand guard and pommel. Designed for close-quarter combat, it was effective in puncturing and bursting mail armor links and penetrating weak points in plate armor. The dagger evolved from the early knightly dagger and became the standard side-arm for knights in the 15th century. It was used as a backup weapon for hand-to-hand fighting and as a tool to force surrender, as captured knights could be ransomed. The rondel dagger also gained popularity among the middle class in the 15th century. Various combat techniques involving the rondel dagger can be found in Hans Talhoffer's combat manuals from the 1440s to 1460s.
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- "Rondel Dagger" | 2023-06-15 | 16 Upvotes 5 Comments