Wikipedia:Picture of the day/November 2021

Stereoscopy is a technique for creating or enhancing the illusion of depth in an image by means of stereopsis for binocular vision. This image of two Passiflora caerulea flowers is arranged as a stereo image pair; it can be viewed stereoscopically by using the cross-eyed viewing method (parallel version here).

Photograph credit: Franz van Duns

William Adams Richardson (November 2, 1821 – October 19, 1896) was an American lawyer who served as the 29th United States secretary of the treasury from 1873 to 1874. During his tenure, the Panic of 1873 swept the nation and caused a depression that lasted five years. He controversially responded by issuing $26 million in greenbacks, which averted the crisis, although there was debate as to whether he had the authority to do so. He was later appointed a judge, and subsequently the chief justice, of the Court of Claims. This line engraving of Richardson was produced around 1902 by the Department of the Treasury's Bureau of Engraving and Printing (BEP) as part of a BEP presentation album of the first 42 secretaries of the treasury.

Engraving credit: Bureau of Engraving and Printing; restored by Andrew Shiva

Anne Dallas Dudley (November 13, 1876 – September 13, 1955) was a prominent activist in the women's suffrage movement in the United States. In 1917, she became the third vice president of the National American Woman Suffrage Association, where she contributed significantly to advancing legislation on the issue of women's suffrage. In 1920, along with several others, she led the campaign in Tennessee to approve ratification of the Nineteenth Amendment to the US Constitution. As a result, Tennessee became the 36th and deciding state to ratify the amendment, thereby giving women the right to vote throughout the country.

Photograph credit: Bain News Service

The green-crowned brilliant (Heliodoxa jacula) is a large hummingbird native to the highlands from Costa Rica to western Ecuador where it lives at altitudes of between 700 and 2,000 m (2,300 and 6,600 ft). It feeds at the large inflorescences of Marcgravia vines, which the male will sometimes defend, and will also feed at Heliconia and other large flowers. Unlike many hummingbirds, the green-crowned brilliant almost always perches to feed. This female, subspecies H. j. henryi, was photographed in the Mount Totumas cloud forest, Panama.

Photograph credit: Charles James Sharp

Fort Ross is a former Russian establishment on the west coast of North America in present-day Sonoma County, California. It was established in 1812 by the Russian-American Company to act as an agricultural base from which the Russian settlements in North America could be supplied with food and trade with Spanish Alta California. By 1841, the settlement was no longer needed for that purpose and was sold. The fort became a National Historic Landmark on November 5, 1961, and is part of California's Fort Ross State Historic Park. This photograph shows the Russian Orthodox Holy Trinity St. Nicholas Chapel at Fort Ross, which was rebuilt in 1973 after a fire.

Photograph credit: Frank Schulenburg

Hypomeces squamosus, commonly known as the gold-dust weevil or green weevil, is a species of beetle in the family Curculionidae. The adult weevil can reach a length of about 14 mm (0.6 in) and is covered with iridescent green or yellowish-green dust-like scales. This species can be found in India, tropical Southeast Asia, and the Philippines. Both the larvae and adults are crop pests, the larvae feeding on plant roots and the adults chewing leaves. This picture of an adult weevil is a digital montage based on five different photographs, using a focus stacking technique.

Photograph credit: Basile Morin

Cortina d'Ampezzo is a town in the heart of the southern (Dolomitic) Alps in the region of Veneto in northern Italy. Situated on the river Boite, in an alpine valley, it is a summer and winter sports resort. Seen here in late summer from Mount Faloria with the peaks of Tofane in the background, Cortina d'Ampezzo hosted the 1956 Winter Olympics and the FIS Alpine World Ski Championships 2021, and, jointly with Milan, is scheduled to host the 2026 Winter Olympics and the 2026 Winter Paralympics.

Photograph credit: Kallerna

Fredrikke Mørck (9 November 1861 – 14 October 1934) was a Norwegian feminist, editor and school teacher. Born in Trondheim, she started her own school, Fredrikke Mørcks Pigeskole, around 1905. She contributed to the feminist magazine Nylænde from its inception in 1893, and served as its editor from 1916 to 1927. Mørck chaired the Norwegian Association for Women's Rights from 1926 to 1930.

Photograph credit: unknown; restored by Adam Cuerden

Landscape near Arles is an 1888 oil-on-canvas by the French artist Paul Gauguin. It depicts a rural scene in Provence, southern France, featuring a haystack with a traditional farmhouse and cypress trees in the background. At the time, Gauguin was living with Vincent van Gogh in Arles; they had a stormy relationship, but it proved to be a productive period for both artists. The painting is in the collection of the Indianapolis Museum of Art.

Painting credit: Paul Gauguin

Nelly Martyl (1884–1953) was a French opera singer. She sang in the premieres of several operas, including Leborne's La Catalane (1907), Erlanger's La Sorcière (1912), and Massenet's Amadis (1922). Martyl joined the Red Cross as a nurse during the First World War, and served at the Battle of Verdun in 1916, where she was known as la fée de Verdun (the Fairy of Verdun), and at the Second Battle of the Aisne in 1917. She continued as a nurse after the war to help with the 1918 epidemic of Spanish flu. She was awarded the Croix de Guerre with the carte du combattant (signifying service under particular hazard) in 1920.

Photograph credit: Jean Reutlinger; restored by Adam Cuerden

The saddle-billed stork (Ephippiorhynchus senegalensis) is a large wading bird in the stork family, Ciconiidae. The species has a widespread distribution in sub-Saharan Africa, and feeds on fish, frogs, crabs and other small creatures. This saddle-billed stork was photographed fishing in the shallow waters of the Okavango Delta in Botswana.

Photograph credit: Diego Delso

John A. Dahlgren (November 13, 1809 – July 12, 1870) was a United States Navy officer who founded the Navy's Ordnance Department and launched major advances in gunnery. He introduced a cast-iron muzzle-loading cannon with vastly increased range and accuracy, known as the Dahlgren gun, which became the Navy's standard armament. During the American Civil War, he was made the commander of the Washington Navy Yard. He also served at sea, being put in command of the South Atlantic Blockading Squadron.

Photograph credit: Mathew Brady; restored by Jebulon

La Esmeralda is a grand opera in four acts composed by Louise Bertin, an adaptation of the French Gothic novel The Hunchback of Notre-Dame by Victor Hugo, who also wrote the libretto for the opera. This sketch by Charles-Antoine Cambon shows the set design for act 3, scene 2, of the opera, which premiered at the Théâtre de l'Académie Royale de Musique in Paris on 14 November 1836.

Set design credit: Charles-Antoine Cambon; restored by Adam Cuerden

The Capitolium of Brixia was the main temple in the center of the Roman town of Brixia (Brescia) in northern Italy. All that remains is fragmentary ruins, but the temple is part of an archeological site, including a Roman amphitheatre and museum in central Brescia. It forms part of the Longobards in Italy: Places of Power (568–774 A.D.), a UNESCO World Heritage Site inscribed in 2011.

Photograph credit: Wolfgang Moroder

The cheetah (Acinonyx jubatus) is a large cat native to Africa and central Iran. Cubs are highly vulnerable to predators during the first few weeks of life, and predation is the leading cause of mortality among cheetah cubs. A study showed that in areas with a low density of predators (such as Namibian farmlands) around 70 per cent of the cubs survived beyond the age of 14 months, whereas in areas like the Serengeti National Park, where several large carnivores exist, the survival rate was just 17 per cent. This cheetah cub was photographed in the Phinda Private Game Reserve in KwaZulu-Natal, South Africa, amid long grass.

Photograph credit: Charles James Sharp

Georg Braun (1541 – 10 March 1622) was a Catholic cleric and topo-geographer from Cologne. From 1572 to 1617, he edited the Civitates orbis terrarum, which contains 546 prospects, bird's-eye views and maps of cities from around the world. This copper plate print was published in the first volume of the work; it was engraved by the Flemish mapmaker Frans Hogenberg and shows a historical view of Trier.

Credit: Frans Hogenberg and Georg Braun

The Utah monolith was a three-meter-tall (9.8 ft) metal pillar that stood in a red sandstone slot canyon in northern San Juan County in the U.S. state of Utah. Made of metal sheets riveted into a triangular prism, it was unlawfully placed on public land between July and October 2016, and stood unnoticed for more than four years until its discovery and removal in late 2020. The identity of its makers, and their objectives, are unknown. Following its discovery, numerous similar metal columns, many of which were built by local artists as deliberate imitations, were erected in other places throughout the world. This photograph shows the Utah monolith at its original location.

Photograph credit: Patrick A. Mackie; retouched by Chainwit.

Alan Bean (1932–2018) was an American naval officer, naval aviator, aeronautical engineer, test pilot, and NASA astronaut. During the Apollo 12 mission, on 19–20 November 1969, he became the fourth person to walk on the Moon. This portrait photograph, taken by NASA two months before the mission, depicts Bean beside a mock-up of the Apollo Lunar Module, wearing his space suit without the helmet and gloves.

Photograph credit: NASA / Johnson Space Center

The ruddy turnstone (Arenaria interpres) is a small wading bird in the sandpiper family, Scolopacidae. It is a highly migratory bird, breeding in northern parts of Eurasia and North America and flying south to winter on coastlines almost worldwide. This adult ruddy turnstone in non-breeding plumage was photographed at Boat Harbour in New South Wales, Australia.

Photograph credit: John Harrison

The Sainte-Chapelle de Vincennes is a Gothic royal chapel within the fortifications of the Château de Vincennes on the east edge of Paris. It was inspired by the Sainte-Chapelle, the royal chapel within the Palais de la Cité in Paris. It was begun in 1379 by Charles V of France to house relics of the Passion of Jesus. The interior, seen in this photograph, has very little decoration, most of it having been destroyed in 1793 during the French Revolution, but vestiges of the sculpture and portions of the Renaissance stained glass remain.

Photograph credit: Daniel Vorndran

Baby Huwae (22 November 1939 – 5 June 1989) was an Indonesian model, film actress and singer. Born in Rotterdam, Netherlands, she moved to Indonesia, where she took up modelling, by the 1950s. She entered the film industry in 1958, and gained popularity following the success of Asrama Dara. Over the next few years, Huwae acted in a further five films and established a girl group, the Baby Dolls, with several actresses who had appeared in her second film. She made a guest appearance in one more film in 1971 after a ten-year hiatus.

Photograph credit: Tati Photo Studio; restored by Chris Woodrich

The northern palm squirrel (Funambulus pennantii) is a species of rodent in the family Sciuridae. It has a wide distribution in the Indian subcontinent and Iran, being a semi-arboreal species found in dry deciduous forest and many other rural and urban habitats. It is a common species with a wide range and the International Union for Conservation of Nature has rated its conservation status as being of least concern. This northern palm squirrel was photographed in Keoladeo National Park in Bharatpur, in the Indian state of Rajasthan.

Photograph credit: Charles James Sharp

Eswatini, formerly known as Swaziland, is a landlocked country in Southern Africa. The government is an absolute monarchy, the last of its kind in Africa, and the country has been ruled by King Mswati III since 1986. One of the country's important cultural events is Umhlanga, the reed-dance festival, held in August or September each year. This photograph shows Princess Sikhanyiso Dlamini, the eldest daughter of Mswati III, at the 2006 festival.

Photograph credit: Amada44

Purana tigrina is a species of cicada found in Southeast Asia. This adult male was photographed in Kadavoor, Kerala, in southern India, and is about one inch (25 mm) in length. The mouthparts are adapted to piercing plant tissues and sucking sap; the male abdomen houses the tymbal, an organ used in the production of song, while the female abdomen is tipped by a large, saw-edged ovipositor.

Photograph credit: Jeevan Jose

Cygnus is a northern constellation on the plane of the Milky Way, deriving its name from the Latinized Greek word for 'swan'. Cygnus is one of the most recognizable constellations of the northern summer and autumn, and it features a prominent asterism known as the Northern Cross. Cygnus was among the 48 constellations listed by the 2nd-century astronomer Ptolemy, and it remains one of the 88 modern constellations. This illustration of Cygnus, with the surrounding constellations of Lacerta, Lyra and Vulpecula, was produced around 1823 as part of Urania's Mirror, a set of 32 astronomical star-chart cards published in the United Kingdom.

Lithograph credit: Sidney Hall; restored by Adam Cuerden

A Meeting in the Royal Danish Academy of Sciences and Letters is a monumental 1897 oil-on-canvas group portrait by Peder Severin Krøyer, depicting the membership of the Royal Danish Academy of Sciences and Letters during one of its meetings in the Prince's Mansion in Copenhagen. Commissioned by the Carlsberg Foundation, the painting measures 266.7 by 519.4 centimetres (105.0 in × 204.5 in), and hangs in the Academy's building in central Copenhagen.

Painting credit: Peder Severin Krøyer

The Walchensee Hydroelectric Power Station is a storage power station in Bavaria, Germany. The turbines, seen here, are fed by water from the Walchensee which is then released into the Kochelsee. The power station uses the hydraulic head of about 200 metres (660 ft) between the two natural lakes, and water from the Rißbach river is also used to augment the supply. The installed capacity is 124 MW with an annual production of 300 GWh; this is one of the largest of such power plants in Germany.

Photograph credit: Diego Delso

Henry Taube (November 30, 1915 – November 16, 2005) was a Canadian-born American chemist who was awarded the 1983 Nobel Prize in Chemistry for "his work in the mechanisms of electron-transfer reactions, especially in metal complexes". He was the second Canadian-born chemist to win the Nobel Prize, and remains the only Saskatchewanian-born Nobel laureate. Taube also received many other major scientific awards, including the Priestley Medal in 1985 and two Guggenheim Fellowships early in his career (1949 and 1955), as well as numerous honorary doctorates.

Photograph credit: United States Department of Energy; restored by Bammesk