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🔗 United States 🔗 Mathematics

Garfield's proof of the Pythagorean theorem is an original proof of the Pythagorean theorem discovered by James A. Garfield (November 19, 1831 – September 19, 1881), the 20th president of the United States. The proof appeared in print in the New-England Journal of Education (Vol. 3, No.14, April 1, 1876). At the time of the publication of the proof Garfield was a congressman from Ohio. He assumed the office of President on March 4, 1881, and served in that position until his death on September 19, 1881, having succumbed to injuries sustained when he was shot in an assassination in July. Garfield is thus far the only President of the United States to have contributed anything original to mathematics. The proof is nontrivial and, according to the historian of mathematics William Dunham, "Garfield's is really a very clever proof." The proof appears as the 231st proof in The Pythagorean Proposition, a compendium of 370 different proofs of the Pythagorean theorem.

🔗 United States 🔗 Companies 🔗 Law 🔗 Marketing & Advertising 🔗 Google

Jedi Blue is an agreement between Alphabet and Meta Platforms that allegedly gave Facebook an illegal advantage in Google's ad auctions in exchange for Facebook's word that it would end its own ad service plans.

🔗 Internet culture 🔗 Linguistics

The Slashdot effect, also known as slashdotting or the hug of death occurs when a popular website links to a smaller website, causing a massive increase in traffic. This overloads the smaller site, causing it to slow down or even temporarily become unavailable. Typically, less robust sites are unable to cope with the huge increase in traffic and become unavailable – common causes are lack of sufficient data bandwidth, servers that fail to cope with the high number of requests, and traffic quotas. Sites that are maintained on shared hosting services often fail when confronted with the Slashdot effect. This has the same effect as a denial-of-service attack, albeit accidentally. The name stems from the huge influx of web traffic which would result from the technology news site Slashdot linking to websites. The term flash crowd is a more generic term.

The original circumstances have changed, as flash crowds from Slashdot were reported in 2005 to be diminishing due to competition from similar sites, and the general adoption of elastically scalable cloud hosting platforms.

🔗 Computing 🔗 Computing/Computer hardware

ESP32 is a family of low-cost, energy-efficient microcontrollers that integrate both Wi-Fi and Bluetooth capabilities. These chips feature a variety of processing options, including the Tensilica Xtensa LX6 microprocessor available in both dual-core and single-core variants, the Xtensa LX7 dual-core processor, or a RISC-V microprocessor. In addition, the ESP32 incorporates components essential for wireless data communication such as built-in antenna switches, an RF balun, power amplifiers, low-noise receivers, filters, and power-management modules.

Typically, the ESP32 is embedded on device-specific printed circuit boards or offered as part of development kits that include a variety of GPIO pins and connectors, with configurations varying by model and manufacturer. The ESP32 was designed by Espressif Systems and is manufactured by TSMC using their 40 nm process. It is a successor to the ESP8266 microcontroller.

🔗 Biography 🔗 Women 🔗 Biography/Actors and Filmmakers 🔗 Biography/Musicians 🔗 Iceland 🔗 Pop music 🔗 Alternative music 🔗 Women in Music 🔗 Björk

Björk Guðmundsdóttir ( BYURK, Icelandic: [pjœr̥k ˈkvʏðmʏntsˌtouhtɪr̥] ; born 21 November 1965), known mononymously as Björk, is an Icelandic singer, songwriter, composer, record producer, and actress. Noted for her distinct voice, three-octave vocal range, and eccentric public persona, she has developed an eclectic musical style over a career spanning five decades, drawing on electronica, pop, dance, trip hop, jazz, and avant-garde music. She is regarded as one of the most influential musicians of her era.

Born and raised in Reykjavík, Björk began her music career at the age of 11 and gained international recognition as the lead singer of the alternative rock band the Sugarcubes by the age of 21. After the Sugarcubes disbanded in 1992, Björk gained prominence as a solo artist with her albums Debut (1993), Post (1995), and Homogenic (1997), which blended electronic, pop, and avant-garde music and achieved significant critical success. Her later albums saw further experimentation, including the glitch-influenced Vespertine (2001), a cappella album Medúlla (2004), pop-focused Volta (2007), and Biophilia (2011), an interactive album with an accompanying iPad app. Following the death of her longtime co-producer Mark Bell, she collaborated with Venezuelan artist Arca on her albums Vulnicura (2015) and Utopia (2017), while Fossora (2022) marked her first venture as a sole producer.

With sales of over 40 million records worldwide, Björk is one of the best-selling alternative artists of all time. Several of her albums have reached the top 20 on the US Billboard 200 chart. Thirty-one of her singles have reached the top 40 on pop charts around the world, with 22 top 40 hits in the UK, including the top-10 singles "It's Oh So Quiet", "Army of Me", and "Hyperballad" and the top-20 singles "Play Dead", "Big Time Sensuality", and "Violently Happy". Her accolades and awards include the Order of the Falcon, five BRIT Awards, and 16 Grammy nominations (including nine in the Best Alternative Music Album category, the most of any artist). In 2015, Time named her one of the 100 most influential people in the world. Rolling Stone named her the 64th-greatest singer and the 81st-greatest songwriter of all time in 2023.

Björk starred in the 2000 Lars von Trier film Dancer in the Dark, for which she won the Best Actress Award at the 2000 Cannes Film Festival, and was nominated for the Academy Award for Best Original Song for "I've Seen It All". Björk has also been an advocate for environmental causes in Iceland. A retrospective exhibition dedicated to Björk was held at New York's Museum of Modern Art in 2015.

🔗 Archaeology 🔗 Peru

The Band of Holes, also known in Spanish as Monte Sierpe (serpent mountain) or Cerro Viruela (smallpox hill), is a structure consisting of approximately 5,200 human-sized and stone-lined pits found in the Pisco Valley on the Nazca Plateau in Peru. Modern residents near the site have no knowledge of who made the pits nor how they were used. For many years, it has been speculated that they might be graves, defensive positions, or storage places. In 2015, researchers determined that the structure was built during the time of the Inca Empire (1438–1533), speculating that, because of a relationship to the Inca khipus device long-believed to be related to accounting, perhaps the structure was used to sort quantities of produce into standardized measurements using various pits that measure from 3.3 to 6.6 feet wide and 1.6 to 3.3 feet deep, and that the structure might be related to regional produce trade or to accounting for taxation using produce. In 2025, new scientific analysis suggested further support for that concept and encouraged more detailed research.

🔗 Computing 🔗 Philosophy 🔗 Futures studies 🔗 Artificial Intelligence

TESCREAL is a neologism proposed by computer scientist Timnit Gebru and philosopher Émile P. Torres. An acronym, it stands for Transhumanism, Extropianism, Singularitarianism, (modern) Cosmism, Rationalists (the internet community, not to be confused with other uses of the term), Effective Altruism, and Longtermism. Gebru and Torres argue that these ideologies should be treated as an "interconnected and overlapping" group with shared origins. They claim these constitute a movement that allows its proponents to use the threat of human extinction to justify expensive or detrimental projects and consider it pervasive in social and academic circles in Silicon Valley centered on artificial intelligence. As such, the acronym is sometimes used to criticize a perceived belief system associated with Big Tech.

🔗 Biography 🔗 California 🔗 Video games 🔗 Women 🔗 Biography/sports and games 🔗 California/Southern California 🔗 California/Los Angeles area 🔗 LGBTQ+ studies 🔗 Video games/esports 🔗 LGBTQ+ studies/LGBTQ+ Person

Rebecca Ann Heineman (October 30, 1963 – November 17, 2025) was an American video game designer and programmer. Heineman was a founder or co-founder of video game companies Interplay Productions, Logicware, Contraband Entertainment, and Olde Sküül. She was the chief executive officer of Olde Sküül from 2013 until her death in 2025.

🔗 Australia 🔗 Australia/Melbourne 🔗 Australia/Australian crime 🔗 Visual arts

The theft of The Weeping Woman from the National Gallery of Victoria took place on 2 August 1986 in Melbourne, Victoria, Australia. The stolen work was one of a series of paintings by Pablo Picasso all known as The Weeping Woman and had been purchased by the gallery for A$1.6 million in 1985—at the time the highest price paid by an Australian art gallery for an artwork. A group calling itself "Australian Cultural Terrorists" claimed responsibility, making a number of demands (and insults) in letters to the then-Victorian Minister for the Arts, Race Mathews. The demands included increases to funding for the arts; threats were made that the painting would be destroyed. After an anonymous tip-off to police, the painting was found undamaged in a locker at Spencer Street railway station on 19 August 1986. The theft still remains unsolved.

🔗 Internet 🔗 Video games

A multi-user dungeon (MUD, ), also known as a multi-user dimension or multi-user domain, is a multiplayer real-time virtual world, usually text-based or storyboarded. MUDs combine elements of role-playing games, hack and slash, player versus player, interactive fiction, and online chat. Players can read or view descriptions of rooms, objects, other players, and non-player characters, and perform actions in the virtual world that are typically also described. Players typically interact with each other and the world by typing commands that resemble a natural language, as well as using a character typically called an avatar.

Traditional MUDs implement a role-playing video game set in a fantasy world populated by fictional races and monsters, with players choosing classes in order to gain specific skills or powers. The objective of this sort of game is to slay monsters, explore a fantasy world, complete quests, go on adventures, create a story by roleplaying, and advance the created character. Many MUDs were fashioned around the dice-rolling rules of the Dungeons & Dragons series of games.

Such fantasy settings for MUDs are common, while many others have science fiction settings or are based on popular books, movies, animations, periods of history, worlds populated by anthropomorphic animals, and so on. Not all MUDs are games; some are designed for educational purposes, while others are purely chat environments, and the flexible nature of many MUD servers leads to their occasional use in areas ranging from computer science research to geoinformatics to medical informatics to analytical chemistry. MUDs have attracted the interest of academic scholars from many fields, including communications, sociology, law, and economics. At one time, there was interest from the United States military in using them for teleconferencing.

Most MUDs are run as hobbies and are free to play; some may accept donations or allow players to purchase virtual items, while others charge a monthly subscription fee. MUDs can be accessed via standard telnet clients, or specialized MUD clients, which are designed to improve the user experience. Numerous games are listed at various web portals, such as The Mud Connector.

The history of modern massively multiplayer online role-playing games (MMORPGs) like EverQuest and Ultima Online, and related virtual world genres such as the social virtual worlds exemplified by Second Life, can be traced directly back to the MUD genre. Indeed, before the invention of the term MMORPG, games of this style were simply called graphical MUDs. A number of influential MMORPG designers began as MUD developers and/or players (such as Raph Koster, Brad McQuaid, Matt Firor, and Brian Green) or were involved with early MUDs (like Mark Jacobs and J. Todd Coleman).