Have a deep view into what people are curious about.

🔗 Aviation 🔗 Aviation/gliding

Dynamic soaring is a flying technique used to gain energy by repeatedly crossing the boundary between air masses of different velocity. Such zones of wind gradient are generally found close to obstacles and close to the surface, so the technique is mainly of use to birds and operators of radio-controlled gliders, but glider pilots are sometimes able to soar dynamically in meteorological wind shears at higher altitudes.

Dynamic soaring is sometimes confused with slope soaring which is a technique for achieving elevation.

🔗 Biography 🔗 International relations 🔗 Human rights 🔗 Military history 🔗 Death 🔗 Women 🔗 International relations/International law 🔗 Israel 🔗 Israel Palestine Collaboration 🔗 Palestine 🔗 Military history/Middle Eastern military history 🔗 Military history/Post-Cold War 🔗 Crime and Criminal Biography 🔗 Crime and Criminal Biography/Serial Killer

Hind Rami Iyad Rajab (Arabic: هند رامي إياد رجب; 3 May 2018 – 29 January 2024) was a five-year-old Palestinian girl in the Gaza Strip who was killed by the Israel Defense Forces (IDF) during the Gaza war, which also killed six of her family members and two paramedics coming to her rescue.

Rajab and her family were fleeing Gaza City when their vehicle was shelled by the IDF, killing her uncle, aunt and three cousins, with Rajab and another cousin surviving and contacting the Palestine Red Crescent Society (PRCS) to ask for help while noting that they were being attacked by an Israeli tank. The cousin was later also killed and Rajab was left stranded in the vehicle for hours on the phone, as paramedics from PRCS attempted to rescue her. Both Rajab and the paramedics were later also found dead on 10 February after an Israeli withdrawal.

Israel claimed that there were not any troops present in the neighborhood and denied carrying out the attack. However, this was refuted by The Washington Post and Sky News's investigations relying on satellite imagery and visual evidence, which concluded that a number of Israeli tanks were indeed present and one had likely fired 335 rounds on the car that Rajab and her family had been in, with tank operators being able to see that the car had civilians including children in it. The Forensic Architecture investigation also concluded that an Israeli tank had also likely attacked the ambulance that came for Rajab.

In the aftermath of the killing, Western media outlets were criticized for their coverage of the incident, including for not attributing who killed Rajab and for their adultification of her. American student protestors occupied and renamed Hamilton Hall in her honor at Columbia University, drawing increased attention to the incident.

🔗 Business 🔗 Games

The beer distribution game (also known as the beer game) is a type of gamification that is used to experience typical coordination problems of a supply chain process. It reflects a role-play simulation where several participants play with each other. The game represents a supply chain with a non-coordinated process where problems arise due to lack of information sharing. This game outlines the importance of information sharing, supply chain management and collaboration throughout a supply chain process. Due to lack of information, suppliers, manufacturers, sales people and customers often have an incomplete understanding of what the real demand of an order is. The most interesting part of the game is that each group has no control over another part of the supply chain. Therefore, each group has only significant control over their own part of the supply chain. Each group can highly influence the entire supply chain by ordering too much or too little which can lead to a bullwhip effect. Therefore, the order taking of a group also highly depends on decisions of the other groups.

🔗 Novels 🔗 Children's literature 🔗 Dogs 🔗 Novels/19th century

A Dog of Flanders is an 1872 novel by English author Marie Louise de la Ramée published with her pseudonym "Ouida". It is about a Flemish boy named Nello and his dog, Patrasche and is set in Antwerp.

In Japan, Korea and the Philippines, the novel has been an extremely popular children's classic for decades and has been adapted into several Japanese films and anime. Since the 1980s, the Belgian board of tourism caught on to the phenomenon and built two monuments honoring the story to please East-Asian tourists. There is a small statue of Nello and Patrasche at the Kapelstraat in the Antwerp suburb of Hoboken, and a commemorative plaque in front of the Antwerp Cathedral donated by Toyota, that was later replaced by a marble statue of the two characters covered by a cobblestone blanket, created by the artist Batist Vermeulen.

🔗 Computing 🔗 Computing/Software 🔗 Computing/Free and open-source software

netcat (often abbreviated to nc) is a computer networking utility for reading from and writing to network connections using TCP or UDP. The command is designed to be a dependable back-end that can be used directly or easily driven by other programs and scripts. At the same time, it is a feature-rich network debugging and investigation tool, since it can produce almost any kind of connection its user could need and has a number of built-in capabilities.

Its list of features includes port scanning, transferring files, and port listening, and it can be used as a backdoor.

🔗 Psychology 🔗 Cognitive science

Pandemonium architecture is a theory in cognitive science that describes how visual images are processed by the brain. It has applications in artificial intelligence and pattern recognition. The theory was developed by the artificial intelligence pioneer Oliver Selfridge in 1959. It describes the process of object recognition as a hierarchical system of detection and association by a metaphorical set of "demons" sending signals to each other. This model is now recognized as the basis of visual perception in cognitive science.

Pandemonium architecture arose in response to the inability of template matching theories to offer a biologically plausible explanation of the image constancy phenomenon. Contemporary researchers praise this architecture for its elegancy and creativity; that the idea of having multiple independent systems (e.g., feature detectors) working in parallel to address the image constancy phenomena of pattern recognition is powerful yet simple. The basic idea of the pandemonium architecture is that a pattern is first perceived in its parts before the "whole".

Pandemonium architecture was one of the first computational models in pattern recognition. Although not perfect, the pandemonium architecture influenced the development of modern connectionist, artificial intelligence, and word recognition models.

🔗 Military history 🔗 Military history/Maritime warfare 🔗 Ships 🔗 Military history/Russian, Soviet and CIS military history

K-219 was a Project 667A Navaga-class ballistic missile submarine (NATO reporting name Yankee I) of the Soviet Navy. It carried 16 R-27U liquid-fuel missiles powered by UDMH with nitrogen tetroxide (NTO), and equipped with either 32 or 48 nuclear warheads.K-219 was involved in what has become one of the most controversial submarine incidents during the Cold War on Friday 3 October 1986. The 15-year-old vessel, which was on an otherwise routine Cold War nuclear deterrence patrol in the North Atlantic 1,090 kilometres (680 mi) northeast of Bermuda, suffered an explosion and fire in a missile tube. While underway submerged the seal in a missile hatch cover failed, allowing high-pressure seawater to enter the missile tube and owing to the pressure differential rupture the missile fuel tanks, allowing missile's liquid fuel to mix and ultimately combust. Though there was no official announcement, the Soviet Union claimed the leak was caused by a collision with the submarine USS Augusta. Although Augusta was operating within the area, both the United States Navy and the commander of K-219, Captain Second Rank Igor Britanov, deny that a collision took place.

The incident was novelized in the book Hostile Waters, which reconstructed the incident from descriptions by the survivors, ships' logs, the official investigations, and participants both ashore and afloat from the Soviet and the American sides.

🔗 Espionage 🔗 Books 🔗 Computer Security 🔗 Computer Security/Computing

The Cuckoo's Egg: Tracking a Spy Through the Maze of Computer Espionage is a 1989 book written by Clifford Stoll. It is his first-person account of the hunt for a computer hacker who broke into a computer at the Lawrence Berkeley National Laboratory (LBNL).

Stoll's use of the term extended the metaphor Cuckoo's egg from brood parasitism in birds to malware.

🔗 California 🔗 Mexico 🔗 Geography 🔗 Mythology 🔗 Islands

The Island of California refers to a long-held European misconception, dating from the 16th century, that the Baja California Peninsula was not part of mainland North America but rather a large island (spelled on early maps as Cali Fornia) separated from the continent by a strait now known as the Gulf of California.

One of the most famous cartographic errors in history, it was propagated on many maps during the 17th and 18th centuries, despite contradictory evidence from various explorers. The legend was initially infused with the idea that California was a terrestrial paradise, like the Garden of Eden or Atlantis.

🔗 England 🔗 English Royalty

The Groom of the Stool (formally styled: "Groom of the King's Close Stool") was the most intimate of an English monarch's courtiers, responsible for assisting the king in excretion and ablution.

The physical intimacy of the role naturally led to his becoming a man in whom much confidence was placed by his royal master and with whom many royal secrets were shared as a matter of course. This secret information—while it would never have been revealed, for it would have led to the discredit of his honour—in turn led to his becoming feared and respected and therefore powerful within the royal court in his own right. The office developed gradually over decades and centuries into one of administration of the royal finances, and under Henry VII, the Groom of the Stool became a powerful official involved in setting national fiscal policy, under the "chamber system".

Later, the office was renamed Groom of the Stole. The Tudor historian David Starkey classes this change as classic Victorianism: "When the Victorians came to look at this office, they spelt it s-t-o-l-e, and imagined all kinds of fictions about elaborate robes draped around the neck of the monarch at the coronation;" however, the change is in fact seen as early as the 17th century.