To stay up to date you can also follow on Mastodon.

🔗 Musical Instruments

The Siemens Synthesizer (or "Siemens Studio für Elektronische Musik") was developed in Germany in 1959 by the German electronics manufacturer Siemens, originally to compose live electronic music for its own promotional films.

From 1956 to 1967, it had a significant influence on the development of electronic music. Among others, Mauricio Kagel, Henri Pousseur, Herbert Brün and Ernst Krenek completed important electronic works there.

🔗 Technology 🔗 Electronics 🔗 Electrical engineering

A ferrite bead (also known as a ferrite block, ferrite core, ferrite ring, EMI filter, or ferrite choke) is a type of choke that suppresses high-frequency electronic noise in electronic circuits.

Ferrite beads employ high-frequency current dissipation in a ferrite ceramic to build high-frequency noise suppression devices.

🔗 Biography 🔗 France 🔗 Women writers 🔗 Biography/Actors and Filmmakers 🔗 Belgium 🔗 Feminism 🔗 Women artists

Agnès Varda (French: [aɲɛs vaʁda]; born Arlette Varda; 30 May 1928 – 29 March 2019) was a Belgian-born French film director, screenwriter, photographer, and artist. Her pioneering work was central to the development of the widely influential French New Wave film movement of the 1950s and 1960s. Her films focused on achieving documentary realism, addressing women's issues, and other social commentary, with a distinctive experimental style.

Varda's work employed location shooting in an era when the limitations of sound technology made it easier and more common to film indoors, with constructed sets and painted backdrops of landscapes, rather than outdoors, on location. Her use of non-professional actors was also unconventional for 1950s French cinema. Varda's feature film debut was La Pointe Courte (1955), followed by Cléo from 5 to 7 (1962), one of her most notable narrative films, Vagabond (1985), and Kung Fu Master (1988). Varda was also known for her work as a documentarian with such works as Black Panthers (1968), The Gleaners and I (2000), The Beaches of Agnès (2008), Faces Places (2017), and her final film, Varda by Agnès (2019).

Director Martin Scorsese described Varda as "one of the Gods of Cinema". Among several other accolades, Varda received an Honorary Palme d'Or at the 2015 Cannes Film Festival, becoming the first woman to win the award, a Golden Lion for Vagabond at the 1985 Venice Film Festival, an Academy Honorary Award, and a nomination for the Academy Award for Best Documentary Feature for Faces Places, becoming the oldest person to be nominated for a competitive Oscar. In 2017, she became the first female director to win an honorary Oscar.

🔗 Systems 🔗 Systems/Cybernetics 🔗 Sociology 🔗 Culture

The Cybernetic Culture Research Unit (CCRU) was an experimental cultural theorist collective formed in late 1995 at Warwick University, England and gradually separated from academia until it dissolved in 2003. It garnered reputation for its idiosyncratic and surreal "theory-fiction" which incorporated cyberpunk and Gothic horror, and its work has since had an online cult following related to the rise in popularity of accelerationism. Warwick University maintains that the CCRU was never a sanctioned academic project, with some faculty going so far as to assert that the CCRU "has never existed". The CCRU are strongly associated with their former leading members, Sadie Plant, Mark Fisher and Nick Land.

🔗 Animal anatomy 🔗 Insects 🔗 Arthropods

The (pan)arthropod head problem is a long-standing zoological dispute concerning the segmental composition of the heads of the various arthropod groups, and how they are evolutionarily related to each other. While the dispute has historically centered on the exact make-up of the insect head, it has been widened to include other living arthropods such as chelicerates, myriapods, crustaceans; and fossil forms, such as the many arthropods known from exceptionally preserved Cambrian faunas. While the topic has classically been based on insect embryology, in recent years a great deal of developmental molecular data has become available. Dozens of more or less distinct solutions to the problem, dating back to at least 1897, have been published, including several in the 2000s.

The arthropod head problem is popularly known as the endless dispute, the title of a famous paper on the subject by Jacob G. Rempel in 1975, referring to its seemingly intractable nature. Although some progress has been made since that time, the precise nature of especially the labrum and the pre-oral region of arthropods remain highly controversial.

🔗 Japan 🔗 Japan/Culture

Chindōgu (珍道具) is the practice of inventing ingenious everyday gadgets that seem to be ideal solutions to particular problems, but which may cause more problems than they solve. The term is of Japanese origin.

🔗 Climate change 🔗 Oceans 🔗 Limnology and Oceanography

The ocean temperature varies by depth, geographical location and season. Both the temperature and salinity of ocean water differs. Warm surface water is generally saltier than the cooler deep or polar waters; in polar regions, the upper layers of ocean water are cold and fresh. Deep ocean water is cold, salty water found deep below the surface of Earth's oceans. This water has a very uniform temperature, around 0-3 °C. The ocean temperature also depends on the amount of solar radiation falling on its surface. In the tropics, with the Sun nearly overhead, the temperature of the surface layers can rise to over 30 °C (86 °F) while near the poles the temperature in equilibrium with the sea ice is about −2 °C (28 °F). There is a continuous circulation of water in the oceans. Thermohaline circulation (THC) is a part of the large-scale ocean circulation that is driven by global density gradients created by surface heat and freshwater fluxes. Warm surface currents cool as they move away from the tropics, and the water becomes denser and sinks. The cold water moves back towards the equator as a deep sea current, driven by changes in the temperature and density of the water, before eventually welling up again towards the surface.

Ocean temperature as a term is used either for the temperature in the ocean at any depth, or specifically for the ocean temperatures that are not near the surface (in which case it is synonymous with "deep ocean temperature").

It is clear that the oceans are warming as a result of climate change and this rate of warming is increasing.^: 9 The upper ocean (above 700 m) is warming fastest, but the warming trend extends throughout the ocean. In 2022, the global ocean was the hottest ever recorded by humans.

🔗 Time

The Pax calendar was invented by James A. Colligan, SJ in 1930 as a perennializing reform of the annualized Gregorian calendar.

🔗 Philosophy 🔗 England 🔗 Philosophy/Ethics

A Hobson's choice is a free choice in which only one thing is actually offered. The term is often used to describe an illusion that multiple choices are available. The most well known Hobson's choice is "I'll give you a choice: take it or leave it", wherein "leaving it" is strongly undesirable.

The phrase is said to have originated with Thomas Hobson (1544–1631), a livery stable owner in Cambridge, England, who offered customers the choice of either taking the horse in his stall nearest to the door or taking none at all.

🔗 Computing

A long-running debate in computer science known as the Protocol Wars occurred from the 1970s to the 1990s when engineers, organizations and nations became polarized over the issue of which communication protocol would result in the best and most robust computer networks. This culminated in the Internet–OSI Standards War in the late 1980s and early 1990s, which was ultimately "won" by the Internet protocol suite ("TCP/IP") by the mid-1990s and has since resulted in most other protocols disappearing.

The pioneers of packet switching technology built computer networks to research data communications in the early 1970s. As public data networks emerged in the mid to late 1970s, the debate about interface standards was described as a "battle for access standards". An international collaboration between several national postal, telegraph and telephone ("PTT") providers and commercial operators developed the X.25 standard in 1976, which was adopted on public networks providing global coverage. Several proprietary standards also emerged, most notably IBM's Systems Network Architecture.

The United States Department of Defense developed and tested TCP/IP during the 1970s in collaboration with universities and researchers in the United States, United Kingdom and France. IPv4 was released in 1981 and the DoD made it standard for all military computer networking. By 1984, an international reference model known as the OSI model had been agreed on, with which TCP/IP was not compatible. Many governments in Europe – particularly France, West Germany, the United Kingdom and the European Economic Community – and also the United States Department of Commerce mandated compliance with the OSI model and the US Department of Defense planned to transition away from TCP/IP to OSI.

Meanwhile, the development of a complete Internet protocol suite by 1989, and partnerships with the telecommunication and computer industry to incorporate TCP/IP software into various operating systems laid the foundation for the widespread adoption of TCP/IP as a comprehensive protocol suite. While OSI developed its networking standards in the late 1980s, TCP/IP came into widespread use on multi-vendor networks for internetworking and as the core component of the emerging Internet.