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π 33 Thomas Street
33 Thomas Street (formerly the AT&T Long Lines Building) is a 550-foot-tall (170Β m) skyscraper in Civic Center, Lower Manhattan, New York City. It stands on the east side of Church Street, between Thomas Street and Worth Street. The building is an example of the Brutalist architectural style. It is a telephone exchange or wire center building which contained three major 4ESS switches used for interexchange (long distance) telephony, as well as a number of other switches used for competitive local exchange carrier services. However, it is not used for incumbent local exchange carrier services, and is not a central office. The CLLI code for this facility is NYCMNYBW. The building has also been described as the likely location of a National Security Agency (NSA) mass surveillance hub codenamed TITANPOINTE.
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- "33 Thomas Street" | 2019-11-17 | 156 Upvotes 59 Comments
π 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 keyβvalue 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
π Euthanasia Coaster
The Euthanasia Coaster is a hypothetical steel roller coaster designed to kill its passengers. In 2010, it was designed and made into a scale model by Lithuanian artist Julijonas Urbonas, a PhD candidate at the Royal College of Art in London. Urbonas, who has worked at an amusement park, stated that the goal of his concept roller coaster is to take lives "with elegance and euphoria". As for practical applications of his design, Urbonas mentioned "euthanasia" or "execution". John Allen, who served as president of the Philadelphia Toboggan Company, inspired Urbonas with his description of the "ultimate" roller coaster as one that "sends out 24 people and they all come back dead".
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- "The Euthanasia Coaster" | 2023-03-01 | 10 Upvotes 3 Comments
- "Euthanasia Coaster" | 2021-07-27 | 34 Upvotes 12 Comments
- "Euthanasia Coaster" | 2014-05-08 | 92 Upvotes 106 Comments
π Meta-jokes
Meta-joke refers to several somewhat different, but related categories: joke templates, self-referential jokes, and jokes about jokes (also known as meta-humor).
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- "Meta-jokes" | 2011-09-27 | 63 Upvotes 22 Comments
π Wikipedia Is Down
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- "Wikipedia Is Down" | 2022-03-29 | 13 Upvotes 6 Comments
π Soviet Pilot Escapes from POW Camp by Stealing a German Bomber and Flying Home
Mikhail Petrovich Devyatayev (Russian: ΠΠΈΡ Π°ΠΈΠ» ΠΠ΅ΡΡΠΎΠ²ΠΈΡ ΠΠ΅Π²ΡΡΠ°Π΅Π²; Moksha/Erzya: ΠΠΈΡ Π°ΠΈΠ» ΠΠ΅ΡΡΠΎΠ²ΠΈΡ ΠΠ΅Π²ΡΡΠ°Π΅Π²; 8 July 1917 β 24 November 2002) was a Soviet fighter pilot known for his incredible escape from a Nazi concentration camp on the island of Usedom, in the Baltic Sea.
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- "Soviet Pilot Escapes from POW Camp by Stealing a German Bomber and Flying Home" | 2021-01-18 | 75 Upvotes 33 Comments
π Fluidics
Fluidics, or fluidic logic, is the use of a fluid to perform analog or digital operations similar to those performed with electronics.
The physical basis of fluidics is pneumatics and hydraulics, based on the theoretical foundation of fluid dynamics. The term fluidics is normally used when devices have no moving parts, so ordinary hydraulic components such as hydraulic cylinders and spool valves are not considered or referred to as fluidic devices.
A jet of fluid can be deflected by a weaker jet striking it at the side. This provides nonlinear amplification, similar to the transistor used in electronic digital logic. It is used mostly in environments where electronic digital logic would be unreliable, as in systems exposed to high levels of electromagnetic interference or ionizing radiation.
Nanotechnology considers fluidics as one of its instruments. In this domain, effects such as fluid-solid and fluid-fluid interface forces are often highly significant. Fluidics have also been used for military applications.
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- "Fluidics" | 2018-05-24 | 37 Upvotes 14 Comments
π Anti Tank Vespa
The Vespa 150 TAP was an anti-tank scooter made in the 1950s from a Vespa scooter for use with French paratroops (troupes aΓ©roportΓ©es, TAP). Introduced in 1956 and updated in 1959, the scooter was produced by Ateliers de Construction de Motocycles et Automobiles (ACMA), the licensed assembler of Vespas in France at the time. Modifications from the civilian Vespa included a reinforced frame and a 75Β mm (3.0Β in) recoilless rifle mounted to the scooter.
The 150 TAPs mounted a M20 75Β mm recoilless rifle, a U.S.-made light anti-armour weapon. It was very light in comparison to a standard 75Β mm (3.0Β in) cannon but was still able to penetrate 100Β mm (3.9Β in) of armour with its HEAT warhead. The recoil was counteracted by venting propellant gases out the rear of the weapon which eliminated the need for a mechanical recoil system or heavy mount.
The scooters would be parachute-dropped in pairs, accompanied by a two-man team. The gun was carried on one scooter, while the ammunition was loaded on the other. Due to the lack of any kind of aiming devices the recoilless rifle was never designed to be fired from the scooter; the gun was mounted on a M1917 Browning machine gun tripod, which was also carried by the scooter, before being fired. However, in an emergency it could be fired while in the frame, and while the scooter was moving.
The "Bazooka Vespa" was relatively cheap: Vespas cost roughly US$500 at the time, and the M20s were plentiful. 600 of them were produced, between 1956 and 1959. It had a cart, and also came with two cans of fuel.
The scooter themselves were original civilian produced VB1T models, 150 cc capacity engine. The engine was two stroke, top speed of 60Β km/h (37Β mph), enough speed to ram any vehicles if needed in an emergency, or move the user from the drop site to the area where the paratrooper was needed.
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- "Anti Tank Vespa" | 2023-11-20 | 186 Upvotes 74 Comments
π Sun Dog
A sun dog (or sundog) or mock sun, formally called a parhelion (plural parhelia) in meteorology, is an atmospheric optical phenomenon that consists of a bright spot to one or both sides of the Sun. Two sun dogs often flank the Sun within a 22Β° halo.
The sun dog is a member of the family of halos, caused by the refraction of sunlight by ice crystals in the atmosphere. Sun dogs typically appear as a pair of subtly colored patches of light, around 22Β° to the left and right of the Sun, and at the same altitude above the horizon as the Sun. They can be seen anywhere in the world during any season, but are not always obvious or bright. Sun dogs are best seen and most conspicuous when the Sun is near the horizon.
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- "Sun Dog" | 2019-09-04 | 12 Upvotes 2 Comments
π Island Gigantism
Island gigantism, or insular gigantism, is a biological phenomenon in which the size of an animal species isolated on an island increases dramatically in comparison to its mainland relatives. Island gigantism is one aspect of the more general "island effect" or "Foster's rule", which posits that when mainland animals colonize islands, small species tend to evolve larger bodies, and large species tend to evolve smaller bodies (insular dwarfism). This is itself one aspect of the more general phenomenon of island syndrome which describes the differences in morphology, ecology, physiology and behaviour of insular species compared to their continental counterparts. Following the arrival of humans and associated introduced predators (dogs, cats, rats, pigs), many giant as well as other island endemics have become extinct (e.g. the dodo and Rodrigues solitaire, giant flightless pigeons related to the Nicobar pigeon). A similar size increase, as well as increased woodiness, has been observed in some insular plants such as the Mapou tree (Cyphostemma mappia) in Mauritius which is also known as the "Mauritian baobab" although it is member of the grape family (Vitaceae).
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- "Island Gigantism" | 2023-12-16 | 90 Upvotes 29 Comments