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🔗 Engineering 🔗 Sanitation

A shit flow diagram (also called excreta flow diagram or SFD) is a high level technical drawing used to display how excreta moves through a location, and functions as a tool to identify where improvements are needed. The diagram has a particular focus on treatment of the waste, and its final disposal or use. SFDs are most often used in developing countries.

🔗 Maps 🔗 Transport 🔗 Transport/Maritime 🔗 Writing systems 🔗 Micronesia

Stick charts were made and used by the Marshallese to navigate the Pacific Ocean by canoe off the coast of the Marshall Islands. The charts represented major ocean swell patterns and the ways the islands disrupted those patterns, typically determined by sensing disruptions in ocean swells by islanders during sea navigation.

Most stick charts were made from the midribs of coconut fronds that were tied together to form an open framework. Island locations were represented by shells tied to the framework, or by the lashed junction of two or more sticks. The threads represented prevailing ocean surface wave-crests and directions they took as they approached islands and met other similar wave-crests formed by the ebb and flow of breakers. Individual charts varied so much in form and interpretation that the individual navigator who made the chart was the only person who could fully interpret and use it. The use of stick charts ended after World War II driven in part by new electronic technologies, which made navigation more accessible, the reduction in canoe travel between islands, and the repeated nuclear testing at Bikini Atoll and other islands, which led to widespread destruction by the US government of Marshall Island culture and stability.

🔗 Korea 🔗 Food and drink 🔗 Korea/North Korea

North Korea has several restaurants serving pizza. Most people in the country cannot afford pizza, and it is mostly available for the elite. Pyongyang has five restaurants that serve pizza, including Pizza Restaurant on Kwangbok Street and Italy Pizza on Mirae Scientists Street. Kim Jong Il hired Italian chefs to train North Koreans in pizza making and introduced it to the country.

🔗 Television 🔗 Japan 🔗 Television/Television game shows

Takeshi's Castle (Japanese: 風雲!たけし城, Hepburn: Fūun! Takeshi-jō) is a Japanese game show that aired between 1986 and 1990 on the Tokyo Broadcasting System (TBS). It features the Japanese comedian Takeshi Kitano (also known as Beat Takeshi) as a count who sets up difficult physical challenges that players (or a volunteer army) must overcome in order to reach him in his castle.

The show became a cult television hit around the world. It was highly influential in global popular culture, inspiring a genre of game shows involving physical challenges and painful entertainment, as well as other media. On 2 April 2005, a special live "revival" was broadcast for TBS's 50th anniversary celebrations. A reboot of the show was released on Amazon Prime Video on 21 April 2023. German-Japanese actor Subaru Kimura joined the returning Tani as co-leader of the contestants.

🔗 Human rights 🔗 Italy 🔗 Philosophy 🔗 Politics 🔗 Philosophy/Social and political philosophy 🔗 Sociology 🔗 Discrimination 🔗 LGBTQ+ studies

“Ur-Fascism” or “Eternal Fascism: Fourteen Ways of Looking at a Blackshirt” (in Italian: Il fascismo eterno, or Ur-Fascismo) is a renowned essay authored by the Italian philosopher, novelist, and semiotician Umberto Eco. First published in 1995, this influential essay provides an analysis of fascism, a definition of fascism, and discusses the fundamental characteristics and traits of fascism. Drawing on Eco's personal experiences growing up in Mussolini's Italy and his extensive research on fascist movements, the essay offers his insights into the nature of fascism and its manifestations.

🔗 Computing 🔗 Business

In 2002, the United States Department of Justice began a probe into the activities of dynamic random-access memory (DRAM) manufacturers in response to complaints by US computer makers, including Dell and Gateway. The computer makers said that inflated DRAM pricing was causing them lost profits and hindering their effectiveness in the marketplace, in violation of the Sherman Antitrust Act.

To date, five manufacturers have pleaded guilty to their involvement in an international price-fixing conspiracy between July 1, 1998, and June 15, 2002, including Hynix, Infineon, Micron Technology, Samsung, and Elpida.

🔗 Biography 🔗 Internet culture 🔗 Mathematics 🔗 Biography/science and academia

Cleo was the pseudonym of an anonymous mathematician active on the mathematics Stack Exchange from 2013 to 2015, who became known for providing precise answers to complex mathematical integration problems without showing any intermediate steps. Due to the extraordinary accuracy and speed of the provided solutions, mathematicians debated whether Cleo was an individual genius, a collective pseudonym, or even an early artificial intelligence system.

During the poster's active period, Cleo posted 39 answers to advanced mathematical questions, primarily focusing on complex integration problems that had stumped other users. Cleo's answers were characterized by being consistently correct while providing no explanation of methodology, often appearing within hours of the original posts. The account claimed to be limited in interaction due to an unspecified medical condition.

The mystery surrounding Cleo's identity and mathematical abilities generated significant interest in the mathematical community, with users attempting to analyze solution patterns and writing style for clues. Some compared Cleo to historical mathematical figures like Srinivasa Ramanujan, known for providing solutions without conventional proofs. In 2025, Cleo was revealed to be Vladimir Reshetnikov, a software developer originally from Uzbekistan.

🔗 Languages 🔗 Constructed languages 🔗 Taoism

Toki Pona is a philosophical artistic constructed language known for its small vocabulary. It was created by Canadian linguist and translator Sonja Lang for the purpose of simplifying thoughts and communication. It was first published online in 2001 as a draft, and later in complete form in the book Toki Pona: The Language of Good in 2014. A small community of speakers developed in the early 2000s. The community grew after the release of the official book and has continued to grow larger since its publication. While activity mostly takes place online in chat rooms, on social media, and in other groups, there were a few organized in-person meetings during the 2010s.

The underlying feature of Toki Pona is minimalism. It focuses on simple universal concepts, making use of very little to express the most. The language is isolating and has 120–125 root words and 14 phonemes that are easy to pronounce across different languages. However, it was not created to be an international auxiliary language. Inspired by Taoist philosophy, the language is designed to help users concentrate on basic things and to promote positive thinking, in accordance with the Sapir–Whorf hypothesis. Despite the small vocabulary, speakers are able to understand and communicate with each other, mainly relying on context and combinations of several words to express more specific meanings.

🔗 Novels 🔗 Novels/Science fiction 🔗 Science Fiction 🔗 Horror

Blindsight is a hard science fiction novel by Canadian writer Peter Watts, published by Tor Books in 2006. It won the Seiun Award for the best novel in Japanese translation (where it is published by Tokyo Sogensha) and was nominated for the Hugo Award for Best Novel, the John W. Campbell Memorial Award for Best Science Fiction Novel, and the Locus Award for Best Science Fiction Novel. The story follows a crew of astronauts sent to investigate a trans-Neptunian comet dubbed "Burns-Caulfield" that has been found to be transmitting an unidentified radio signal, followed by their subsequent first contact. The novel explores themes of identity, consciousness, free will, artificial intelligence, neurology, and game theory as well as evolution and biology.

Blindsight is available online under a Creative Commons Attribution-NonCommercial-ShareAlike license. Its sequel (or "sidequel"), Echopraxia, came out in 2014.

🔗 Spaceflight

STS-51-F (also known as Spacelab 2) was the 19th flight of NASA's Space Shuttle program and the eighth flight of Space Shuttle Challenger. It launched from Kennedy Space Center, Florida, on July 29, 1985, and landed eight days later on August 6, 1985.

While STS-51-F's primary payload was the Spacelab 2 laboratory module, the payload that received the most publicity was the Carbonated Beverage Dispenser Evaluation, which was an experiment in which both Coca-Cola and Pepsi tried to make their carbonated drinks available to astronauts. A helium-cooled infrared telescope (IRT) was also flown on this mission, and while it did have some problems, it observed 60% of the galactic plane in infrared light.

During launch, Challenger experienced multiple sensor failures in its Engine 1 Center SSME, which led to it shutting down. As a result, the shuttle had to perform an "Abort to Orbit" (ATO) emergency procedure. It is the only Shuttle mission to have carried out an abort after launching. As a result of the ATO, the mission was carried out at a slightly lower orbital altitude.