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🔗 Biography 🔗 France 🔗 Architecture 🔗 Biography/arts and entertainment 🔗 Craft

Ferdinand Cheval (19 April 1836 – 19 August 1924) was a French postman who spent thirty-three years of his life building Le Palais idéal (the "Ideal Palace") in Hauterives. The Palace is regarded as an extraordinary example of naïve art architecture.

🔗 Architecture 🔗 Pennsylvania 🔗 Pittsburgh

A Pittsburgh toilet, or Pittsburgh potty, is a common fixture in pre-World War II houses built in Pittsburgh, Pennsylvania, United States and surrounding region. It consists of an ordinary flush toilet installed in the basement, with no surrounding walls. Most of these toilets are paired with a crude basement shower apparatus and large sink, which often doubles as a laundry basin. Also, because western Pennsylvania is a steep topographical zone, many basements have their own entryway, allowing homeowners to enter from their yard or garage, cleanse themselves in their basement, and then ascend their basement stairs refreshed. Its primary function was to serve as a cleanup station for steel mill workers to clean themselves after returning from work. The toilet fixtures would also limit the harm of sewage backups in hilly Pittsburgh, providing a lower, flushable outlet than the main part of the house.

🔗 Biography 🔗 Military history 🔗 Architecture 🔗 Greece 🔗 Military history/Military biography 🔗 Biography/military biography 🔗 Military history/World War II 🔗 Military history/Cold War 🔗 Dance 🔗 Composers 🔗 Dance/Ballet 🔗 Classical music 🔗 Military history/Balkan military history 🔗 Biography/Musicians 🔗 Military history/European military history

Iannis Xenakis (also spelt as Yannis Xenakis) (Greek: Γιάννης (Ιάννης) Ξενάκης [ˈʝanis kseˈnacis]; 29 May 1922 – 4 February 2001) was a Greek-French composer, music theorist, architect, performance director and engineer. After 1947, he fled Greece, becoming a naturalized citizen of France. He is considered an important post-World War II composer whose works helped revolutionize 20th-century classical music.

Xenakis pioneered the use of mathematical models in music such as applications of set theory, stochastic processes and game theory and was also an important influence on the development of electronic and computer music. He integrated music with architecture, designing music for pre-existing spaces, and designing spaces to be integrated with specific music compositions and performances.

Among his most important works are Metastaseis (1953–54) for orchestra, which introduced independent parts for every musician of the orchestra; percussion works such as Psappha (1975) and Pléïades (1979); compositions that introduced spatialization by dispersing musicians among the audience, such as Terretektorh (1966); electronic works created using Xenakis's UPIC system; and the massive multimedia performances Xenakis called polytopes, that were a summa of his interests and skills. Among the numerous theoretical writings he authored, the book Formalized Music: Thought and Mathematics in Composition (French edition 1963, English translation 1971) is regarded as one of his most important. As an architect, Xenakis is primarily known for his early work under Le Corbusier: the Sainte Marie de La Tourette, on which the two architects collaborated, and the Philips Pavilion at Expo 58, which Xenakis designed by himself.

🔗 Architecture 🔗 Pakistan

Osama bin Laden's compound, known locally as the Waziristan Haveli (Urdu: وزیرستان حویلی‎), was an upper-class mansion that was used as a safe house for militant Islamist Osama bin Laden, who was shot and killed there by U.S. forces on May 2, 2011. The compound was located at the end of a dirt road 1,300 metres (0.8 mi) southwest of the Pakistan Military Academy in Bilal Town, Abbottabad, Pakistan, a suburb housing many retired military officers. Bin Laden was reported to have evaded capture by living in a section of the house for at least five years, having no Internet or phone connection, and hiding away from the public, who were allegedly unaware of his presence.

Completed in 2005, the main buildings in the compound lay on a 3,500-square-metre (38,000 sq ft) plot of land, much larger than those of nearby houses. Its perimeter was 3.7- to 5.5-metre (12 to 18 ft) concrete walls topped with barbed wire, and there were two security gates. The compound had very few windows. Little more than five years old, the compound's ramshackle buildings were badly in need of repainting. The grounds contained a well-kept vegetable garden, rabbits, some 100 chickens and a cow. The house itself did not stand out architecturally from others in the neighbourhood, except for its size and exaggerated security measures; for example, the third-floor balcony had a 2-metre (7 ft) privacy wall. Photographs inside the house showed excessive clutter and modest furnishings. After the American mission, there was extensive interest in and reporting about the compound and its design. To date, the Pakistani government has not responded to any allegations as to who had built the structure.

After the September 11 attacks in 2001, the U.S. searched for bin Laden for nearly 10 years. By tracking his courier Abu Ahmed al-Kuwaiti to the compound, U.S. officials surmised that bin Laden was hiding there. During a raid on May 2, 2011, 24 members of the United States Naval Special Warfare Development Group arrived by helicopter, breached a wall using explosives, and entered the compound in search of bin Laden. After the operation was completed and bin Laden was killed, Pakistan demolished the structure in February 2012.

🔗 Architecture

A saw-tooth roof is a roof comprising a series of ridges with dual pitches either side. The steeper surfaces are glazed to admit daylight and face away from the equator to shield workers and machinery from direct sunlight. This kind of roof admits natural light into a deep plan building or factory. It was therefore most commonly built during the Machine Age from the mid-nineteenth century to the mid-twentieth, when electrification of factories was not yet common.

Many factories of the era had little or no electrical wiring; their main power sources for the machinery were often steam engines driving line shafting, and the lighting was chiefly via daylighting through the windows. Work done at night, when necessary, was typically lit by oil lamps and candles, but many factories closed for the night. Their norm of an early working day (for example, 6 a.m. to 4 p.m.) was not merely a tradition but a functional decision based on this reliance on daylighting. The same was true of the farmer's workday, for the same reason.

🔗 Architecture 🔗 Urban studies and planning 🔗 Effective Altruism

The YIMBY movement (short for "yes in my back yard") is a pro-infrastructure development movement mostly focusing on public housing policy, real estate development, public transportation, and pedestrian safety in transportation planning, in contrast and in opposition to the NIMBY ("not in my back yard") movement that generally opposes most forms of urban development in order to maintain the status quo. As a popular organized movement in the United States, it began in the San Francisco Bay Area in the 2010s amid a major housing affordability crisis and has subsequently become a potent political force in state and local politics across the United States.

The YIMBY position supports increasing the supply of housing within cities where housing costs have escalated to unaffordable levels. They have also supported infrastructure development projects like improving housing development (especially for affordable housing or trailer parks), high-speed rail lines, homeless shelters, day cares, schools, universities and colleges, bike lanes, and transportation planning that promotes pedestrian safety infrastructure. YIMBYs often seek rezoning that would allow denser housing to be produced or the repurposing of obsolete buildings, such as shopping malls, into housing. Some YIMBYs have also supported public-interest projects like clean energy or alternative transport.

The YIMBY movement has supporters across the political spectrum, including left-leaning adherents who believe housing production is a social justice issue, free-market libertarian proponents who think the supply of housing should not be regulated by the government, and environmentalists who believe land use reform will slow down exurban development into natural areas. YIMBYs argue cities can be made increasingly affordable and accessible by building more infill housing,^: 1 and that greenhouse gas emissions will be reduced by denser cities.

🔗 Environment 🔗 Architecture 🔗 Civil engineering 🔗 Industrial design

Biophilic design is a concept used within the building industry to increase occupant connectivity to the natural environment through the use of direct nature, indirect nature, and space and place conditions. Used at both the building and city-scale, it is argued that this idea has health, environmental, and economic benefits for building occupants and urban environments, with few drawbacks. Although its name was coined in recent history, indicators of biophilic design have been seen in architecture from as far back as the Hanging Gardens of Babylon.

🔗 Technology 🔗 Architecture

A Matrioshka brain is a hypothetical megastructure of immense computational capacity powered by a Dyson sphere. It was proposed in 1997 by Robert J. Bradbury (1956–2011). It is an example of a Class B stellar engine, employing the entire energy output of a star to drive computer systems. This concept derives its name from the nesting Russian Matryoshka dolls. The concept was deployed by Bradbury in the anthology Year Million: Science at the Far Edge of Knowledge.

🔗 Architecture

Star lifting is any of several hypothetical processes by which a sufficiently advanced civilization (specifically, one of Kardashev-II or higher) could remove a substantial portion of a star's matter which can then be re-purposed, while possibly optimizing the star's energy output and lifespan at the same time. The term appears to have been coined by David Criswell.

Stars already lose a small flow of mass via solar wind, coronal mass ejections, and other natural processes. Over the course of a star's life on the main sequence this loss is usually negligible compared to the star's total mass; only at the end of a star's life when it becomes a red giant or a supernova is a large proportion of material ejected. The star lifting techniques that have been proposed would operate by increasing this natural plasma flow and manipulating it with magnetic fields.

Stars have deep gravity wells, so the energy required for such operations is large. For example, lifting solar material from the surface of the Sun to infinity requires 2.1 × 10¹¹ J/kg. This energy could be supplied by the star itself, collected by a Dyson sphere; using 10% of the Sun's total power output would allow 5.9 × 10²¹ kilograms of matter to be lifted per year (0.0000003% of the Sun's total mass), or 8% of the mass of Earth's moon.

🔗 Korea 🔗 Architecture

Ondol (ON-dol; , Korean: 온돌; Hanja: 溫突/溫堗; Korean pronunciation: [on.dol]) or gudeul (구들; [ku.dɯl]) in Korean traditional architecture is underfloor heating that uses direct heat transfer from wood smoke to heat the underside of a thick masonry floor. In modern usage, it refers to any type of underfloor heating, or to a hotel or a sleeping room in Korean (as opposed to Western) style.

The main components of the traditional ondol are an agungi (아궁이; [a.guŋ.i]), a firebox or stove, accessible from an adjoining room (typically kitchen or master bedroom), a raised masonry floor underlain by horizontal smoke passages, and a vertical, freestanding chimney on the opposite exterior wall providing a draft. The heated floor, supported by stone piers or baffles to distribute the smoke, is covered by stone slabs, clay and an impervious layer such as oiled paper.