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Hodl ( HOD-əl; often written HODL) is slang in the cryptocurrency community for holding the cryptocurrency rather than selling it. A person who does this is known as a Hodler. It originated in a December 2013 post on the Bitcoin Forum message board by an apparently inebriated user who posted with a typo in the subject, "I AM HODLING." It is often backronymed to "hold on for dear life". In 2017, Quartz listed it as one of the essential slang terms in Bitcoin culture, and described it as a stance, "to stay invested in bitcoin and not to capitulate in the face of plunging prices." TheStreet.com referred to it as the "favorite mantra" of Bitcoin holders. Bloomberg News referred to it as a "mantra" for holders during market routs.

Erotetics or erotetic logic is a part of logic, devoted to logical analysis of questions. It is sometimes called the logic of questions and answers.

1K ZX Chess is a 1982 chess program for the unexpanded Sinclair ZX81.

Alan L. Hart (born Alberta Lucille Hart, October 4, 1890 – July 1, 1962) was an American physician, radiologist, tuberculosis researcher, writer and novelist. He was in 1917–18 one of the first trans men to undergo hysterectomy in the United States, and lived the rest of his life as a man. He pioneered the use of x-ray photography in tuberculosis detection, and helped implement TB screening programs that saved thousands of lives.

Wim Odilia Georges Taymans is a Belgian software developer based in Malaga, Spain. He is the original developer behind GStreamer and Pipewire technologies, which provide core multimedia processing capabilities to many modern operating systems.

Taymans started his career in multimedia development on the Commodore 64 and the Amiga writing various games and demos. In 1994 he installed the Linux operating system on his Amiga and has since been involved with the development of various multimedia technologies for the Linux platform. His first efforts on Linux were some assembly optimizations for the rtjpeg library; later, he worked on the Trinity video editor before teaming up with Erik Walthinsen to create the GStreamer multimedia framework.

In 2004 he started working for Fluendo in Spain as employee number 3. While working for Fluendo he designed and wrote most of the 0.10 release series of GStreamer. In July 2007 he left Fluendo and joined with Collabora. As part of his job at Collabora he maintained and developed GStreamer further. In November 2013, Taymans started as a Principal Software Engineer at Red Hat spending most of his time working on upstream GStreamer.

Taymans was the main architect and developer behind the GStreamer 1.0 release which came out on September 24, 2012.

In July 2015, Taymans announced that he was designing Pinos, which became PipeWire, from his position as Principal Engineer at Red Hat. PipeWire is a server for handling audio and video streams on Linux.

The Shigir Sculpture, or Shigir Idol (Russian: Шигирский идол), is the oldest known wooden sculpture in the world, made during the Mesolithic period, shortly after the end of the last Ice Age. The wood it was carved from is approximately 11,500 years old. It is displayed in the Sverdlovsk Regional Museum of Local Lore in Yekaterinburg, Russia.

On 11 March 2022, Mark Izraylevich Bernstein (Russian: Марк Израйлевич Бернштейн), a Belarusian blogger and editor of the Russian-language Wikipedia based in Minsk, was detained by the Belarusian GUBOPiK security force after online accusations of violating the 2022 Russian fake news law for his editing of Wikipedia articles on the topic of the 2022 Russian invasion of Ukraine. He was sentenced to 15 days' administrative arrest under Article 24.3 of the Administrative Code of Belarus (for disobedience to police officers).

A shotgun clause (or Texas Shootout Clause) is a term of art, rather than a legal term. It is a specific type of exit provision that may be included in a shareholders' agreement, and may often be referred to as a buy-sell agreement. The shotgun clause allows a shareholder to offer a specific price per share for the other shareholder(s)' shares; the other shareholder(s) must then either accept the offer or buy the offering shareholder's shares at that price per share.

The Nuclear Engine for Rocket Vehicle Application (NERVA) was a nuclear thermal rocket engine development program that ran for roughly two decades. Its principal objective was to "establish a technology base for nuclear rocket engine systems to be utilized in the design and development of propulsion systems for space mission application". It was a joint effort of the Atomic Energy Commission (AEC) and the National Aeronautics and Space Administration (NASA), and was managed by the Space Nuclear Propulsion Office (SNPO) until the program ended in January 1973. SNPO was led by NASA's Harold Finger and AEC's Milton Klein.

NERVA had its origins in Project Rover, an AEC research project at the Los Alamos Scientific Laboratory (LASL) with the initial aim of providing a nuclear-powered upper stage for the United States Air Force intercontinental ballistic missiles. Nuclear thermal rocket engines promised to be more efficient than chemical ones. After the formation of NASA in 1958, Project Rover was continued as a civilian project and was reoriented to producing a nuclear powered upper stage for NASA's Saturn V Moon rocket. Reactors were tested at very low power before being shipped to Jackass Flats in the Nevada Test Site. While LASL concentrated on reactor development, NASA built and tested complete rocket engines.

The AEC, SNPO, and NASA considered NERVA a highly successful program in that it met or exceeded its program goals. It demonstrated that nuclear thermal rocket engines were a feasible and reliable tool for space exploration, and at the end of 1968 SNPO deemed that the latest NERVA engine, the XE, met the requirements for a human mission to Mars. It had strong political support from Senators Clinton P. Anderson and Margaret Chase Smith but was cancelled by President Richard Nixon in 1973. Although NERVA engines were built and tested as much as possible with flight-certified components and the engine was deemed ready for integration into a spacecraft, they never flew in space.