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🔗 Biography 🔗 Mathematics 🔗 Biography/science and academia 🔗 Astronomy 🔗 Linguistics 🔗 Linguistics/Applied Linguistics 🔗 Indigenous peoples of North America 🔗 University of Oxford

Thomas Harriot (Oxford, c. 1560 – London, 2 July 1621), also spelled Harriott, Hariot or Heriot, was an English astronomer, mathematician, ethnographer and translator who made advances within the scientific field. Thomas Harriot was recognized for his contributions in astronomy, mathematics, and navigational techniques. Harriot worked closely with John White to create advanced maps for navigation. While Harriot worked extensively on numerous papers on the subjects of astronomy, mathematics, and navigation the amount of work that was actually published was sparse. So sparse that the only publication that has been produced by Harriot was The Briefe and True Report of the New Found Land of Virginia. The premise of the book includes descriptions of English settlements and financial issues in Virginia at the time. He is sometimes credited with the introduction of the potato to the British Isles. Harriot was the first person to make a drawing of the Moon through a telescope, on 26 July 1609, over four months before Galileo Galilei.

After graduating from St Mary Hall, Oxford, Harriot travelled to the Americas, accompanying the 1585 expedition to Roanoke island funded by Sir Walter Raleigh and led by Sir Ralph Lane. Harriot was a vital member of the venture, having learned and translating the Carolina Algonquian language from two Native Americans: Wanchese and Manteo. On his return to England, he worked for the 9th Earl of Northumberland. At the Earl's house, he became a prolific mathematician and astronomer to whom the theory of refraction is attributed.

🔗 Aviation 🔗 Aviation/aircraft

The Airbus Beluga XL (Airbus A330-743L) is a large transport aircraft based on the Airbus A330 airliner. The aircraft entered service with Airbus Transport on 9 January 2020 to replace the Airbus Beluga in the movement of oversized aircraft components, for example wings. The Beluga XL made its first flight on 19 July 2018, and received its type certification on 13 November 2019.

It made its first operational flight on January 9, 2020, and by January 20, had entered full-time service.

🔗 Engineering 🔗 Metalworking

Powder metallurgy (PM) is a term covering a wide range of ways in which materials or components are made from metal powders. PM processes can avoid, or greatly reduce, the need to use metal removal processes, thereby drastically reducing yield losses in manufacture and often resulting in lower costs.

Powder metallurgy is also used to make unique materials impossible to get from melting or forming in other ways. A very important product of this type is tungsten carbide (WC). WC is used to cut and form other metals and is made from WC particles bonded with cobalt. It is very widely used in industry for tools of many types and globally ~50,000 tonnes/year (t/y) is made by PM. Other products include sintered filters, porous oil-impregnated bearings, electrical contacts and diamond tools.

Since the advent of industrial production–scale metal powder–based additive manufacturing (AM) in the 2010s, selective laser sintering and other metal AM processes are a new category of commercially important powder metallurgy applications.

🔗 Russia 🔗 Archaeology

Onfim (Old Novgorodian: онѳиме, Onfime; also, Anthemius of Novgorod) was a boy who lived in Novgorod in the 13th century. He left his notes and homework exercises scratched in soft birch bark (beresta) which was preserved in the clay soil of Novgorod. Onfim, who was six or seven at the time, wrote in Old Novgorodian; besides letters and syllables, he drew "battle scenes and drawings of himself and his teacher".

🔗 Aviation 🔗 Military history 🔗 Military history/Military aviation 🔗 Military history/Military science, technology, and theory 🔗 Military history/Weaponry

An incendiary balloon (or balloon bomb) is a balloon inflated with a lighter than air gas such as hot air, hydrogen, or helium, that has a bomb, incendiary device, or Molotov cocktail attached. The balloon is carried by the prevailing winds to the target area, where it falls or releases its payload.

🔗 Computing

Rocky Mountain BASIC (also RMB or RM-BASIC) is a dialect of the BASIC programming language created by Hewlett-Packard. It was especially popular for control of automatic test equipment using GPIB. It has several features which are or were unusual in BASIC dialects, such as event-driven operation, extensive external I/O support, complex number support, and matrix manipulation functions. Today, RMB is mainly used in environments where an investment in RMB software, hardware, or expertise already exists.

🔗 Science Fiction

Since the advent of the cyberpunk genre, a number of derivatives of cyberpunk have become recognized in their own right as distinct subgenres in speculative fiction, especially in science fiction.

Rather than necessarily sharing the digitally- and mechanically-focused setting of cyberpunk, these derivatives can display other futuristic, or even retrofuturistic, qualities that are drawn from or analogous to cyberpunk: a world built on one particular technology that is extrapolated to a highly sophisticated level (this may even be a fantastical or anachronistic technology, akin to retrofuturism), a gritty transreal urban style, or a particular approach to social themes.

Steampunk, one of the most well-known of these subgenres, has been defined as a "kind of technological fantasy;" others in this category sometimes also incorporate aspects of science fantasy and historical fantasy. Scholars have written of the stylistic place of these subgenres in postmodern literature, as well as their ambiguous interaction with the historical perspective of postcolonialism.

🔗 Aviation

Bitching Betty is a slang term used by some pilots and aircrew (mainly North American), when referring to the voices used by some aircraft warning systems.

The enunciating voice, in at least some aircraft systems, may be either male or female and in some cases this may be selected according to pilot preference. If the voice is female, it may be referred to as Bitching Betty; if the voice is male, it may be referred to as Barking Bob. A female voice is heard on military aircraft such as the F-16 Fighting Falcon, the Eurofighter Typhoon and the Mikoyan MiG-29. A male voice is heard on Boeing commercial airliners and is also used in the BAE Hawk.

In the United Kingdom the term Nagging Nora is sometimes used, and in New Zealand the term used for Boeing aircraft is Hank the Yank. The voice warning system used on London Underground trains, which also uses a female voice, is known to some staff as Sonya, as it "gets on ya nerves".

🔗 Typography

The Paige Compositor was an invention developed by James W. Paige (1842–1917) between 1872 and 1888. It was designed to replace the human typesetter of a lead type-composed printing form with a mechanical arm. In the early 1890s, a group of inventors signed a contract with Towner K. Webster in Chicago to produce 3000 compositors. However, the machine was not nearly as precise as it should have been and never turned a profit because of its complexity and continual need for adjustment based upon trial and error. As a result, it was the Linotype typesetting machine, which composed in a hot metal typesetting process, that became the new popular typesetting machine.

The Paige typesetting machine is notable for substantial investment that the prominent writer Mark Twain made into the failed endeavor: $300,000 ($6,000,000 today). Twain, a former printer, invested not only the bulk of his book profits but also a large portion of the inheritance of Olivia Clemens, his wife. Many point to his over-investment in the Paige typesetting machine and other inventions as the cause of not only his family's financial decline but also the decline of his wit and humor.

Webster Manufacturing made fewer than six machines costing $15,000 apiece, over three times as much as the initial production estimates. One was donated by Cornell University for a scrap metal drive during World War II. The only surviving machine is displayed at the Mark Twain House in Hartford, Connecticut.

🔗 Time

The Symmetry454 calendar (Sym454) is a proposal for calendar reform created by Irv Bromberg of the University of Toronto, Canada. It is a perennial solar calendar that conserves the traditional month pattern and 7-day week, has symmetrical equal quarters in 82% of the years in its 293-year cycle, and starts every month on Monday.