omniomni/omni-engineering huggingface dataset:
Yokosuka MXY9. The Yokosuka MXY9 Shuka (秋花, "Autumn flower") was a projected development of the MXY8 training glider, adding a small motorjet engine, the Tsu-11. It was intended to provide further training for pilots who were to fly the Mitsubishi J8M and Ki-200 rocket-powered interceptor aircraft.

None were built prior to Japan's surrender and the end of World War II.

Specifications (MXY9, as designed)

See also

Notes

References

Motorjet-powered aircraft
1940s Japanese military trainer aircraft
MXY9
Mid-wing aircraft
Aircraft with skid landing gear
Abandoned military aircraft projects of Japan
Web developer. A web developer is a programmer who develops World Wide Web applications using a client–server model. The applications typically use HTML, CSS, and JavaScript in the client, and any general-purpose programming language in the server. HTTP is used for communications between client and server. A web developer may specialize in client-side applications (Front-end web development), server-side applications (back-end development), or both (full-stack development).

Prerequisite   

There are no formal educational or license requirements to become a web developer. However, many colleges and trade schools offer coursework in web development. There are also many tutorials and articles which teach web development, often freely available on the web - for example, on JavaScript.

Even though there are no formal requirements, web development projects require web developers to have knowledge and skills such as:
 Using HTML, CSS, and JavaScript
 Programming/coding/scripting in one of the many server-side languages or frameworks
 Understanding server-side/client-side architecture and communication of the kind mentioned above
 Ability to utilize a database

See also 
 Frontend and backend
 Outline of web design and web development
 User interface
 User experience
 Website design
 Web development
 Software developer

References

External links 

 The US Department of Labor's description of Web Developers
 / World Wide Web Consortium (W3C)

Web development
Computer occupations
DFS 228. The DFS 228 was a rocket-powered, high-altitude reconnaissance aircraft designed by the Deutsche Forschungsanstalt für Segelflug (DFS - "German Research Institute for Sailplane Flight")  during World War II. By the end of the war, the aircraft had only flown in the form of two unpowered prototypes.

Design and development
Initial design of the DFS 228 was undertaken before the outbreak of war as a research aircraft, the DFS 54, aimed at developing a high-altitude escape system for sailplanes. The project was suspended by the commencement of hostilities, but was revived in 1940 when the Reichsluftfahrtministerium (RLM - "Reich Aviation Ministry") delivered the DFS with a requirement for a rocket-powered reconnaissance aircraft.

The advantages of a sailplane for aerial reconnaissance included its silence, its low speed relative to the ground (allowing for higher-quality photography), and its potential ability to loiter above an area of interest. The project gave the DFS the opportunity to investigate two additional areas that it was interested in:  the effects of wing sweep on sailplane design, and supersonic flight.

The DFS 228 was designed by Felix Kracht and a first prototype was completed in March 1944; it was undergoing gliding tests by that August, carried aloft piggyback and strut-mounted atop a Dornier Do 217. The aircraft was of conventional sailplane arrangement with long, slender wings and designed to land on a retractable skid mounted on its belly. The nose of the aircraft could be separated in an emergency and formed a self-contained, pressurized escape capsule for the pilot. Because of problems with the cabin pressurization system, the second prototype accommodated the pilot in a prone position.

Forty flights were made with the prototypes, and installation of a rocket was to have taken place in February 1945, but the project fell by the wayside as the war situation became more desperate. The second prototype was destroyed in an air raid in May 1945, and the first prototype was captured by U.S. troops in June. In 1946 it was sent to the United Kingdom for study where it was apparently scrapped in 1947, although its exact fate is unknown.

Variants

DFS 54
Experimental glider with a pressure cabin, oxygen, cabin heating and insulation for high altitude flying.
DFS 228
Powered variant of the DFS 54 with a Walter HWK 509D rocket propulsion unit.

Specifications (DFS 228 estimated)

See also

References

Notes

Bibliography

 Green, William. Warplanes of the Third Reich. London: Macdonald and Jane's Publishers Ltd., 1970 (fourth impression 1979). .
 Myhra, David. DFS 228. Atglen, PA: Schiffer Publishing, 2000. .
 Smith, J.Richard and Kay, Anthony. German Aircraft of the Second World War. London: Putnam & Company Ltd., 1972 (third impression 1978). .
 Wood, Tony and Gunston, Bill. Hitler's Luftwaffe: A pictorial history and technical encyclopedia of Hitler's air power in World War II. London: Salamander Books Ltd., 1977. .

Abandoned military aircraft projects of Germany
1940s German military reconnaissance aircraft
Prone pilot aircraft
Rocket-powered aircraft
DFS aircraft
High-wing aircraft
Aircraft first flown in 1944
Runtime. Runtime, run-time, or run time may refer to:

Computing
Runtime (program lifecycle phase), the period during which a computer program is executing
 Runtime library, a program library designed to implement functions built into a programming language
 Runtime system, software designed to support the execution of computer programs
 Software execution, the process of performing instructions one by one during the runtime phase

Art and entertainment
 The duration of a film, song, or television program

See also
 
 
 
 
 Running Time (film)
1722 in science. The year 1722 in science and technology involved some significant events.

Chemistry
 René Antoine Ferchault de Réaumur publishes his work on metallurgy, L'Art de convertir le fer forge en acier, which describes how to convert iron into steel.

Exploration
 April 5 (Easter Sunday) – Jacob Roggeveen lands on Easter Island.

Mathematics
 Abraham de Moivre states de Moivre's formula, connecting complex numbers and trigonometry.

Meteorology
 A continuous series of weather records is begun in Uppsala by Anders Celsius; it will be maintained for at least 300 years.

Physics
 Willem 's Gravesande publishes experimental evidence that the formula for kinetic energy of a body in motion is .

Technology
 October – In clockmaking, George Graham demonstrates that his experiments, begun in December 1721, with mercurial compensation of the pendulum result in greater accuracy in timekeeping under conditions of variable temperature.

Births
 May 11 – Petrus Camper, Dutch comparative anatomist (died 1789)
 November 19 – Leopold Auenbrugger, Austrian physician (died 1809)
 December 28 – Eliza Lucas, American agronomist (died 1793)
 Thomas Barker, English meteorologist (died 1809)

Deaths
 May 20 – Sébastien Vaillant, French botanist (born 1669)

References

 
18th century in science
1720s in science
Evolutionary programming. Evolutionary programming is an evolutionary algorithm, where a share of new population is created by mutation of previous population without crossover. Evolutionary programming differs from evolution strategy ES() in one detail. All individuals are selected for the new population, while in ES(), every individual has the same probability to be selected. It is one of the four major evolutionary algorithm paradigms.

History
It was first used by Lawrence J. Fogel in the US in 1960 in order to use simulated evolution as a learning process aiming to generate artificial intelligence. It was used to evolve finite-state machines as predictors.

See also
 Artificial intelligence
 Genetic algorithm
 Genetic operator

References

External links
 The Hitch-Hiker's Guide to Evolutionary Computation: What's Evolutionary Programming (EP)?
 Evolutionary Programming by Jason Brownlee (PhD) 

Evolutionary algorithms

de:Evolutionäre Programmierung
James Clark (programmer). James Clark (born 23 February 1964) is a software engineer and creator of various open-source software including groff, expat and several XML specifications.

Education and early life
Clark was born in London and educated at Charterhouse School and Merton College, Oxford where he studied Mathematics and Philosophy.

Career
Clark has lived in Bangkok, Thailand since 1995, and is permanent Thai resident. He owns a company called Thai Open Source Software Center, which provides him a legal framework for his open-source activities. Clark is the author and creator of groff, as well as an XML editing mode for GNU Emacs.

Work on XML 
Clark served as technical lead of the working group that developed XML—notably contributing the self-closing, empty element tag syntax, and the name XML.  His contributions to XML are cited in dozens of books on the subject. Clark is the author or co-author of a number of influential specifications and implementations, including:

 DSSSL: An SGML transformation and styling language.
 Expat: An open-source XML parser.
 XSLT: XSL Transformations, a part of the XSL family. He was the editor of the XSLT 1.0 specification.
 XPath: Path language for addressing XML documents; used by XSLT but also as a free-standing language. He was the editor of the XPath 1.0 specification. 
 TREX: Tree regular experessions for XML (TREX) is a schema language for XML. TREX has been merged with RELAX to create RELAX NG.
 RELAX NG: an XML Schema language, with both an explicit XML syntax and a compact syntax. Clark was critical of the XML Schema (W3C) language (also known as XSD) and developed RELAX NG in response
 Jing: An implementation of RELAX NG.
 Clark Notation: A way to express an XML Name in a compact way
 Ballerina: Ballerina is an open source general-purpose programming language for application programmers.
Clark is listed as a member of the working group that developed the Java Stream processing API for XML (StAX) JSR 173 at the JCP.

Software Industry Promotion Agency (SIPA)
From November 2004 until late 2006, Clark worked for Thailand's Software Industry Promotion Agency (SIPA), to promote open source technologies and open standards in the country. This work included pushing the Thai localization of OpenOffice.org office suite and the Mozilla Firefox web browser, along with other open source software packages.

Other projects at SIPA include:

 Chantra: An open source Thai project with programs for Windows, like the OpenCD project.
 Suriyan GNU/Linux: A user-friendly "instant server" system for small and medium-sized companies not to be confused with SIPA's new, unrelated project with a similar name, Suriyan Linux Live CD.

References

1964 births
Living people
People educated at Charterhouse School
Alumni of Merton College, Oxford
Free software programmers
British computer programmers
GNU people
World Wide Web Consortium
Troff
British expatriates in Thailand
Sainsbury family
AMT. AMT, or amt,  may refer to:

Science and technology
 Alpha-Methyltryptamine (αMT), a synthetic psychedelic of the tryptamine family
 Aminomethyltransferase, gene for an enzyme that breaks down glycine
 Air Motion Transformer, a type of loudspeaker invented by Oskar Heil
 Amorphous metal transformer, a kind of energy efficient transformer
 Audio-magnetotellurics, a higher-frequency variant of magnetotellurics
 Intel Active Management Technology, a technology for remotely managing and securing computers
 Amazon Mechanical Turk

Transportation
 Aircraft maintenance technician, a term used in the US
 AMT, the ICAO code for ATA Airlines, a defunct US airline
 AMT, the National Rail code for Aldermaston railway station in the county of Berkshire, UK
 Automated manual transmission, gearbox technology
 Aviation Maintenance Technician, a US Coast Guard rating
 Amata Airport, IATA airport code "AMT"

Organizations
 Agence métropolitaine de transport, Montréal, Canada, replaced by the Réseau de transport métropolitain and Metropolitan Regional Transportation Authority
 Aluminum Model Toys, US
 American Maglev Technology
 American Medical Technologists, an American allied health professional association
 American Tower (NYSE: AMT), an American telecommunications company
 Arcadia Machine & Tool, a former American firearms company
 Association for Manufacturing Technology, US
 Australian Mathematics Trust, in education
 AMT Coffee, defunct UK chain of kiosks
 AMT Genova, (), public transport in Italy

Time standards
 Airy Mean Time, a time standard used for timekeeping on Mars
 Armenia Time, national time zone code for Armenia

Other uses 
 Anthony McDonald-Tipungwuti, an Australian rules footballer
 Amt, type of administrative division governing a group of municipalities, today only in Germany 
 Alternative minimum tax, US
 Atmospheric Measurement Techniques, a European Geosciences Union journal
 Acid Mothers Temple, Japanese rock band

See also
 
 
 AMTS (disambiguation)
Delta Dreamflight. Delta Dreamflight, renamed Dreamflight and later Take Flight during its final two years of operation, was an attraction located in Magic Kingdom's Tomorrowland at the Walt Disney World Resort. It was sponsored by Delta Air Lines. Dreamflight replaced an attraction called If You Could Fly (originally If You Had Wings), sponsored by Eastern Air Lines.

Overview
Dreamflight was a dark ride which showcased the history of flight using simplistic sets, some Audio-Animatronics, and projection effects, utilizing the Omnimover ride system.

Guests entered a queue mimicking an airport terminal. The front of an actual Delta 767 was situated on the left, giving the illusion that guests were actually boarding a jetliner named "The Spirit of Delta."

Aboard the attraction, guests first encountered a mural depicting the golden era of aviation in America, followed by a hot air balloon and other flying contraptions in the style of a pop-up book. Next, a giant crop field of the American mid-west in the roaring 1920s featured biplanes, stunt planes, and barnstormers, flying above.

Guests would then emerge onto a dock in the San Francisco Bay and into the fuselage of Boeing 314 Flying Boat, before finding themselves in Tokyo and then Paris.

Footage of a plane taking off simulated their flight's departure to the next area, flying through a canyon over water and through a futuristic city with fireworks.

Delta sponsorship
Delta sponsored the ride from its opening in 1989 through the end of 1995. The decision not to renew was made in part due to costs of sponsoring the 1996 Olympics in Atlanta, Georgia. From January 1, 1996 to June 4, 1996, the attraction was renamed simply Dreamflight.  On June 5, 1996 it reopened as Take Flight. All references to Delta were removed, and the attraction's theme songs were rerecorded.

The attraction ultimately closed on January 5, 1998. It was replaced by the interactive dark ride Buzz Lightyear's Space Ranger Spin, inspired by Disney/Pixar's Toy Story films.

See also
 Magic Kingdom attraction and entertainment history

References

External links
 https://www.youtube.com/watch?v=tx0hC-s_iQo Video clip of the ride.

Amusement rides introduced in 1989
Amusement rides that closed in 1996
Amusement rides manufactured by Arrow Dynamics
Former Walt Disney Parks and Resorts attractions
Tomorrowland (Disney Parks)
Audio-Animatronic attractions
Omnimover attractions
Delta Air Lines
Aviation attractions
Amusement rides using motion pictures
1989 establishments in Florida
1998 disestablishments in Florida
Terminal (telecommunication). In the context of telecommunications, a terminal is a device which ends a telecommunications link and is the point at which a signal enters or leaves a network. Examples of terminal equipment include telephones, fax machines, computer terminals, printers and workstations.

An end instrument is a piece of equipment connected to the wires at the end of a telecommunications link. In telephony, this is usually a telephone connected to a local loop.  End instruments that relate to data terminal equipment include printers, computers, barcode readers, automated teller machines (ATMs) and the console ports of routers.

See also 
 Communication endpoint
 Data terminal equipment
 End system
 Host (network)
 Node (networking)

 Terminal equipment

References

External links 
 Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment and the mutual recognition of their conformity (R&TTE Directive).

Telecommunications equipment
PiHex. PiHex was a distributed computing project organized by Colin Percival to calculate specific bits of . 1,246 contributors used idle time slices on almost two thousand computers to make its calculations. The software used for the project made use of Bellard's formula, a faster version of the BBP formula.

History
To calculate the five trillionth digit (and the following seventy-six digits) took 13,500 CPU hours, using 25 computers from 6 countries. The forty trillionth digit required 84,500 CPU hours and 126 computers from 18 countries. The highest calculation, the one quadrillionth digit, took 1.2 million CPU hours and 1,734 computers from 56 countries. Total resources: 1,885 computers donated 1.3 million CPU hours. The average computer that was used to calculate would have taken 148 years to complete the calculations alone.

After setting three records, calculating the five trillionth bit, the forty trillionth bit, and the quadrillionth bit, the project ended on September 11, 2000.

While the PiHex project calculated the least significant digits of  ever attempted at the time in any base, the second place is held by Peter Trueb who computed some 22+ trillion digits in 2016 and third place by houkouonchi who derived the 13.3 trillionth digit in base 10.

Algorithm
Unlike most computations of , which compute results in base 10, PiHex computed in base 2 (bits), because Bellard's formula and the BBP formula could only be used to compute  in base 2 at the time.

The final bit strings for each of the three calculations resulted as such:

 Binary digits of  from five trillion minus three to five trillion and seventy-six (completed August 30, 1998):
 0000 0111 1110 0100 0101 0111 0011 0011 1100 1100
    ^ Five trillionth bit of 
 0111 1001 0000 1011 0101 1011 0101 1001 0111 1001
 Binary digits of  from forty trillion minus three to forty trillion and sixty-four (February 9, 1999):
 1010 0000 1111 1001 1111 1111 0011 0111 0001 1101
    ^ Forty trillionth bit of 
 0001 0111 0101 1001 0011 1110 0000
 Binary digits of  from one quadrillion minus three to one quadrillion and sixty (September 11, 2000):
 1110 0110 0010 0001 0110 1011 0000 0110 1001 1100
    ^ Quadrillionth bit of 
 1011 0110 1100 0001 1101 0011

References

Pi-related software
Distributed computing projects
Bisnovat 5. 

The Bisnovat 5 (Бисноват 5) was a supersonic research aircraft designed in the USSR in the late 1940s, inspired by the German DFS 346 aircraft that was captured by Soviet troops towards the end of World War II.

The aircraft was ordered into development to provide an all-Soviet alternative to an aircraft built with foreign technology. Originally intended to take-off from the ground, gliding flights were carried out from a Petlyakov Pe-8 mothership, similar to the way that the Bell X-1 was dropped from a B-29 Superfortress mothership.

Unpowered flight tests revealed poor stability and dangerous landing characteristics with Aircraft 5-1 (first prototype) being damaged beyond repair after the third gliding flight. Flight tests with Aircraft 5-2, fitted with a 45 degree swept fin of greater aspect ratio to improve directional stability, resumed on 26 January 1949. However, further delays were caused by the pilot landing off the runway causing serious damage. 

To improve the landing stability the 5-2 was modified with wing-tip skids, at the end of downturned wing-tips with 45 degrees anhedral, and a single skid on the centreline, as well as a ventral fin at the rear. Flying and landing qualities were much improved, but progress was slow  and the Bisnovat 5 was cancelled without the aircraft making a single powered flight and only sixteen gliding flights, between 14 July 1948 and November 1949, during which a maximum speed of Mach 0.775 was attained.

Specifications

References

Further reading

External links
 

1940s Soviet experimental aircraft
Bisnovat aircraft
Abandoned military aircraft projects of the Soviet Union
Aircraft first flown in 1948
Mid-wing aircraft
Rocket-powered aircraft
Cruciform tail aircraft
Aircraft with skid landing gear
Bricklayer. A bricklayer, which is related to but different from a mason, is a craftsperson and tradesperson who lays bricks to construct brickwork. The terms also refer to personnel who use blocks to construct blockwork walls and other forms of masonry. In British and Australian English, a bricklayer is colloquially known as a "brickie". A stone mason is one who lays any combination of stones, cinder blocks, and bricks in construction of building walls and other works. Bricklaying is a part of masonry.

Bricklaying may also be enjoyed as a hobby. For example, the former British Prime Minister Winston Churchill did bricklaying as a hobby.

Bricklayers occasionally enter competitions where both speed and accuracy are judged. The largest is the "Spec-Mix Bricklayer 500" held annually in Las Vegas, Nevada, USA.

Required training
Professional bricklayers usually go through a formal apprenticeship which includes about three to four years of on-the-job training combined with classroom instruction, though some bricklayers may learn entirely from on-the-job experience. Unions and employers may offer apprenticeships, which allow individuals with little or no experience in bricklaying to learn fundamental skills under a more experienced employee. Contemporary masons in many countries must attend trade school and/or serve apprenticeships in order to complete curricula signifying that they understand fundamental related concepts such as the effects of humidity and water ingress, thermal insulation, and general knowledge regarding the science of construction materials, as well as occupational health and safety.

In fiction and popular culture
 Italian-American author John Fante featured hod carriers, bricklayers, and stonemasons prominently in several novels and short stories. This was due to the autobiographical nature of much of Fante's writing; his father, Nick, an Italian-born bricklayer descended from — at least in Fante's fictions — a long line of Italian artisan bricklayers and stonemasons. Fante also spent a significant portion of his youth apprenticed to his father.
 In Aleksandr Solzhenitsyn's One Day in the Life of Ivan Denisovich, the title character, a Gulag prisoner, worked as a bricklayer.
 The long-running British children's TV series Look and Read featured "Bill the Brickie" ("brickie" being a British and Australian colloquialism for "bricklayer"), who would 'build' words with bricks to demonstrate the use of morphemes, such as '-ed' or '-ing'.
 In 2021, Cristiano Ronaldo's mother, Dolores Aveiro, stated in an interview for Sporting Clube de Portugal's official television channel (Sporting TV) that her son would be a bricklayer if he hadn't become a professional football player.
 In 2024, The Bricklayer, an American action thriller film directed by Renny Harlin and written by Hanna Weg and Matt Johnson, based on the 2010 novel of the same name by Paul Lindsay, who used the pen name Noah Boyd, was released.

See also

References

.
Artisans
Construction trades workers
Crafts
.