Geography (from Ancient Greekγεωγραφίαgeōgraphía; combining gê 'Earth' and gráphō 'write') is the study of the lands, features, inhabitants, and phenomena of Earth. Geography is an all-encompassing discipline that seeks an understanding of Earth and its human and natural complexities—not merely where objects are, but also how they have changed and come to be. While geography is specific to Earth, many concepts can be applied more broadly to other celestial bodies in the field of planetary science. Geography has been called "a bridge between natural science and social science disciplines."
Origins of many of the concepts in geography can be traced to Greek Eratosthenes of Cyrene, who may have coined the term "geographia" (c. 276 BC – c. 195/194 BC). The first recorded use of the word γεωγραφία was as the title of a book by Greek scholar Claudius Ptolemy (100 – 170 AD). This work created the so-called "Ptolemaic tradition" of geography, which included "Ptolemaic cartographic theory." However, the concepts of geography (such as cartography) date back to the earliest attempts to understand the world spatially, with the earliest example of an attempted world map dating to the 9th century BCE in ancient Babylon. The history of geography as a discipline spans cultures and millennia, being independently developed by multiple groups, and cross-pollinated by trade between these groups. The core concepts of geography consistent between all approaches are a focus on space, place, time, and scale.
Today, geography is an extremely broad discipline with multiple approaches and modalities. There have been multiple attempts to organize the discipline, including the four traditions of geography, and into branches. Techniques employed can generally be broken down into quantitative and qualitative approaches, with many studies taking mixed-methods approaches. Common techniques include cartography, remote sensing, interviews, and surveying. (Full article...)
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Chartwell House
Chartwell is a country house near Westerham, Kent, in South East England. For over forty years it was the home of SirWinston Churchill. He bought the property in September 1922 and lived there until shortly before his death in January 1965. In the 1930s, when Churchill was out of political office, Chartwell became the centre of his world. At his dining table, he gathered those who could assist his campaign against German re-armament and the British government's response of appeasement; in his study, he composed speeches and wrote books; in his garden, he built walls, constructed lakes and painted. During the Second World War, Chartwell was largely unused, the Churchills returning after he lost the 1945 election. In 1953, when again prime minister, the house became Churchill's refuge when he suffered a debilitating stroke. In October 1964, he left for the last time, dying at his London home, 28 Hyde Park Gate, on 24 January 1965.
The origins of the estate reach back to the 14th century; in 1382, the property then called Well-street was owned by William-at-Well. It passed through various owners and in 1836 was auctioned, as a substantial brick-built manor. In 1848, it was purchased by John Campbell Colquhoun, whose grandson sold it to Churchill. The Campbell Colquhouns greatly enlarged the house and the advertisement for its sale at the time of Churchill's purchase described it as an imposing mansion. Between 1922 and 1924, it was rebuilt and extended by the society architect Philip Tilden. From the garden front, the house has extensive views over the Weald of Kent, "the most beautiful and charming" Churchill had ever seen, and the determining factor in his decision to buy the house. (Full article...)
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Map showing Morrell's reported location of the "New South Greenland" coast (1823, red line), and "Ross's Appearance" as reported by Sir James Clark Ross in 1841. The dotted line indicates the area of Captain Johnson's 1821 voyage.
New South Greenland, sometimes known as Morrell's Land, was an appearance of land recorded by the American captain Benjamin Morrell of the schoonerWasp in March 1823, during a sealing and exploration voyage in the Weddell Sea area of Antarctica. Morrell provided precise coordinates and a description of a coastline which he claimed to have sailed along for more than 300 miles (500 km). Because the Weddell Sea area was so little visited and hard to navigate due to ice conditions, the alleged land was never properly investigated before its existence was emphatically disproven during Antarctic expeditions in the early 20th century.
At the time of Morrell's voyage, the geography of the then-unnamed Weddell Sea and its surrounding coasts was almost entirely unknown, making the claimed sighting initially plausible. However, obvious errors in Morrell's voyage account and his general reputation as a fabulist created scepticism about the existence of this new land. In June 1912, the German explorer Wilhelm Filchner searched for but found no traces of land after his ship Deutschland became icebound in the Weddell Sea and drifted into the locality of Morrell's observation. A line sounding of the sea bottom revealed more than 5,000 feet (1,500 m) of water, indicating no land in near proximity. Three years later, trapped in the same waters with his ship Endurance, Ernest Shackleton was able by similar means to confirm the land's implausibility. (Full article...)
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Map of Lajjun Sanjak, the territory governed by the Turabay dynasty for most of the 16th and 17th centuries
During the conquest of the Levant and Egypt by the Ottoman Empire in 1516–1517, the Turabay chief Qaraja and his son Turabay aided the forces of Ottoman Sultan Selim I. The Ottomans kept them in their Mamluk-era role as guardians of the strategic Via Maris and Damascus–Jerusalem highways and rewarded them with tax farms in northern Palestine. Their territory became a sanjak in 1559 and Turabay's son Ali became its first governor. His brother Assaf was appointed in 1573, serving for ten years before being dismissed and exiled to Rhodes for involvement in a rebellion. His nephew Turabay was appointed in 1589 and remained in office until his death in 1601. His son and successor Ahmad, the most prominent chief of the dynasty, ruled Lajjun for nearly a half-century and repulsed attempts by the powerful Druze chief and Ottoman governor of Sidon-Beirut and Safed, Fakhr al-Din Ma'n, to take over Lajjun and Nablus in the 1620s. He consolidated the family's alliance with the Ridwan and Farrukh governing dynasties of Gaza and Nablus, which remained intact until the dynasties' demise toward the end of the century. (Full article...)
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The Grade II Listed steam crane at Mount Sion, on the Bury arm
The Manchester Bolton & Bury Canal is a disused canal in Greater Manchester, England, built to link Bolton and Bury with Manchester. The canal, when fully opened, was 15 miles 1 furlong (24 km) long. It was accessed via a junction with the River Irwell in Salford. Seventeen locks were required to climb to the summit as it passed through Pendleton, heading northwest to Prestolee before it split northwest to Bolton and northeast to Bury. Between Bolton and Bury the canal was level and required no locks. Six aqueducts were built to allow the canal to cross the rivers Irwell and Tonge and several minor roads.
The canal was commissioned in 1791 by local landowners and businessmen and built between 1791 and 1808, during the Golden Age of canal building, at a cost of £127,700 (£12.5 million today). Originally designed for narrow gauge boats, during its construction the canal was altered into a broad gauge canal to allow an ultimately unrealised connection with the Leeds and Liverpool Canal. The canal company later converted into a railway company and built a railway line close to the canal's path, which required modifications to the Salford arm of the canal. (Full article...)
From the 1930s, Coventry City Council began replacing the city's narrow medieval streets with modern roads, to cope with a rapidly growing population. City architect Donald Gibson began work in 1939 on a city centre redevelopment plan which expanded in scope following World War II, in which large areas of the city were destroyed by German bombs. The shopping area was rebuilt first, followed by the ring road, which was constructed in six stages from 1959. Early stages were built with at-grade junctions, cycle tracks and footpaths, envisaged as a surface-level linear park. Following traffic surveys in the early 1960s, however, the council amended the design to include grade separation and the weaving sections. Research by the city engineer indicated that it was the first urban road in the world to use this configuration at such a small scale. The road was completed in 1974, with an overall cost of £14.5 million (equivalent to £190,900,000 in 2023). (Full article...)
Production began in the mid-1970s as a faithful adaptation of the novella, following 1951's The Thing from Another World. The Thing went through several directors and writers, each with different ideas on how to approach the story. Filming lasted roughly twelve weeks, beginning in August 1981, and took place on refrigerated sets in Los Angeles as well as in Juneau, Alaska, and Stewart, British Columbia. Of the film's $15million budget, $1.5million was spent on Rob Bottin's creature effects, a mixture of chemicals, food products, rubber, and mechanical parts turned by his large team into an alien capable of taking on any form. (Full article...)
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Route from Cape Denison across the Mertz and Ninnis Glaciers, 10 November 1912 – 8 February 1913 (1912-11-10 – 1913-02-08) (2 months and 29 days)
Mawson, Mertz and Ninnis' outward progress until 14 December 1912
Mawson and Mertz's return progress until 8 January 1913
Mawson's return progress until 8 February 1913
The Far Eastern Party was a sledging component of the 1911–1914 Australasian Antarctic expedition, which investigated the previously unexplored coastal regions of Antarctica west of Cape Adare. Led by Douglas Mawson, the party aimed to explore the area far to the east of their main base in Adélie Land, pushing about 500 miles (800 km) towards Victoria Land. Accompanying Mawson were Belgrave Edward Ninnis, a lieutenant in the Royal Fusiliers, and Swiss ski expert Xavier Mertz; the party used sledge dogs to increase their speed across the ice. Initially they made good progress, crossing two huge glaciers on their route south-east.
On 14 December 1912, with the party more than 311 miles (501 km) from the safety of the main base at Cape Denison, Ninnis and the sledge he was walking beside broke through the snow lid of a crevasse and were lost. Their supplies now severely compromised, Mawson and Mertz turned back west, gradually shooting the remaining sledge dogs for food to supplement their scarce rations. As they crossed the first glacier on their return journey Mertz became sick, making progress difficult. After almost a week of making very little headway Mertz died, leaving Mawson to carry on alone. (Full article...)
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Main façade (northwestern elevation) of Hebron Church, 2015
Hebron Church (also historically known as Great Capon Church, Hebron Lutheran Church, and Hebron Evangelical Lutheran Church) is a mid-19th-century Lutheran church in Intermont, Hampshire County, in the U.S. state of West Virginia. Hebron Church was founded in 1786 by German settlers in the Cacapon River Valley, making it the first Lutheran church west of the Shenandoah Valley. The congregation worshiped in a log church, which initially served both Lutheran and Reformed denominations. Its congregation was originally German-speaking; the church's documents and religious services were in German until 1821, when records and sermons transitioned to English.
The church's congregation built the present Greek Revival-style 1+1⁄2-story church building in 1849, when it was renamed Hebron on the Cacapon. The original log church was moved across the road and subsequently used as a sexton's house, Sunday school classroom, and public schoolhouse (attended by future West Virginia governor Herman G. Kump). (Full article...)
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Io, with two plumes erupting from its surface, Galileo image, June 1997 Volcanism on Io, a moon of Jupiter, is represented by the presence of volcanoes, volcanic pits and lava flows on the surface. Io's volcanic activity was discovered in 1979 by Linda Morabito, an imaging scientist working on Voyager 1. Observations of Io by passing spacecraft and Earth-based astronomers have revealed more than 150 active volcanoes. As of 2024[update], up to 400 such volcanoes are predicted to exist based on these observations. Io's volcanism makes the satellite one of only four known currently volcanically or cryovolcanically active worlds in the Solar System (the others being Earth, Saturn's moon Enceladus, and Neptune's moon Triton.)
First predicted shortly before the Voyager 1 flyby, the heat source for Io's volcanism comes from tidal heating produced by its forced orbital eccentricity. This differs from Earth's internal heating, which is derived primarily from radioactive isotope decay and primordial heat of accretion. Io's eccentric orbit leads to a slight difference in Jupiter's gravitational pull on the satellite between its closest and farthest points on its orbit, causing a varying tidal bulge. This variation in the shape of Io causes frictional heating in its interior. Without this tidal heating, Io might have been similar to the Moon, a world of similar size and mass, geologically dead and covered with numerous impact craters. (Full article...)
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T6's sister ship, T3; the only significant external difference was that T6 had two funnels
Following Austria-Hungary's defeat in 1918, 93 was allocated to the Navy of the Kingdom of Serbs, Croats and Slovenes, which later became the Royal Yugoslav Navy, and was renamed T6. At the time, she and the seven other 250t-class boats were the only modern sea-going vessels of the fledgling maritime force. During the interwar period, T6 and the rest of the navy were involved in training exercises and cruises to friendly ports, but activity was limited by reduced naval budgets. The boat was captured by the Italians during the German-led Axisinvasion of Yugoslavia in April 1941. After her main armament was modernised, she served with the Royal Italian Navy under her Yugoslav designation, conducting coastal and second-line escort duties in the Adriatic Sea. Immediately following the Italian capitulation in September 1943, she was scuttled by her crew as she had insufficient fuel on board to reach an Allied port. (Full article...)
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Freshwater lagoon seen from west bank, with Island Hide in the foreground, and the Parrinder wall and hides further back
The eruption was preceded by a two-month series of earthquakes and steam-venting episodes caused by an injection of magma at shallow depth below the volcano that created a large bulge and a fracture system on the mountain's north slope. An earthquake at 8:32:11 am PDT (UTC−7) on May 18, 1980, caused the entire weakened north face to slide away, a sector collapse which was the largest subaerial landslide in recorded history. This allowed the partly molten rock, rich in high-pressure gas and steam, to suddenly explode northward toward Spirit Lake in a hot mix of lava and pulverized older rock, overtaking the landslide. An eruption column rose 80,000 feet (24 km; 15 mi) into the atmosphere and deposited ash in 11 U.S. states and various Canadian provinces. At the same time, snow, ice, and several entire glaciers on the volcano melted, forming a series of large lahars (volcanic mudslides) that reached as far as the Columbia River, nearly 50 miles (80 km) to the southwest. Less severe outbursts continued into the next day, only to be followed by other large, but not as destructive, eruptions later that year. The thermal energy released during the eruption was equal to 26 megatons of TNT. (Full article...)
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Aerial photo from 1991
Hudson Volcano (Spanish: Volcán Hudson, Cerro Hudson, or Monte Hudson) is the most active volcano in the southern part of the Southern Volcanic Zone of the Andes Mountains in Chile, having erupted most recently in 2011. It was formed by the subduction of the oceanic Nazca Plate under the continental South American Plate. South of Hudson is a smaller volcano, followed by a long gap without active volcanoes, then the Austral Volcanic Zone. Hudson has the form of a 10-kilometre-wide (6-mile) caldera filled with ice; the Huemules Glacier emerges from the northwestern side of the caldera. The volcano has erupted rocks ranging from basalt to rhyolite, but large parts of the caldera are formed by non-volcanic rocks.
The volcano erupted numerous times in the late Pleistocene and Holocene, forming widespread tephra deposits both in the proximity of Hudson and in the wider region. Four large eruptions took place in 17,300–17,440 BP ("H0 eruption"), 7,750 BP ("H1 eruption"), 4,200 BP ("H2 eruption") and in 1991 AD ("H3 eruption"); the second is among the most intense volcanic eruptions in South America during the Holocene. A smaller eruption occurred in 1971. The 7,750 BP and 1991 eruptions had a substantial impact on the human population of Patagonia and (for the 7,750 BP eruption) Tierra del Fuego: The 7,750 BP eruption devastated the local ecosystem and may have caused substantial shifts in human settlement and lifestyle. During the 1991 eruption, volcanic ash covered a large area in Chile and neighbouring Argentina, causing high mortality in farm animals, aggravating an existing economic crisis, and reaching as far as Antarctica. (Full article...)
Image 14
Rogue River from Hellgate Canyon
The Rogue River (Tolowa: yan-shuu-chit’ taa-ghii~-li~’, Takelma: tak-elam) in southwestern Oregon in the United States flows about 215 miles (346 km) in a generally westward direction from the Cascade Range to the Pacific Ocean. Known for its salmon runs, whitewaterrafting, and rugged scenery, it was one of the original eight rivers named in the Wild and Scenic Rivers Act of 1968. Beginning near Crater Lake, which occupies the caldera left by the explosive volcanic eruption and collapse of Mount Mazama, the river flows through the geologically young High Cascades and the older Western Cascades, another volcanic province. Further west, the river passes through multiple exotic terranes of the more ancient Klamath Mountains. In the Kalmiopsis Wilderness section of the Rogue basin are some of the world's best examples of rocks that form the Earth's mantle. Near the mouth of the river, the only dinosaur fragments ever discovered in Oregon were found in the Otter Point Formation, along the coast of Curry County.
People have lived along the Rogue River and its tributaries for at least 8,500 years. European explorers made first contact with Native Americans (Indians) toward the end of the 18th century and began beaver trapping and other activities in the region. Clashes, sometimes deadly, occurred between the natives and the trappers and later between the natives and European-American miners and settlers. These struggles culminated with the Rogue River Wars of 1855–56 and removal of most of the natives to reservations outside the basin. After the war, settlers expanded into remote areas of the watershed and established small farms along the river between Grave Creek and the mouth of the Illinois River. They were relatively isolated from the outside world until 1895, when the Post Office Department added mail boat service along the lower Rogue. As of 2010, the Rogue has one of the two remaining rural mail-boat routes in the United States. (Full article...)
Image 15
One of Molyneux's celestial globes, which is displayed in Middle Temple Library – from the frontispiece of the Hakluyt Society's 1889 reprint of A Learned Treatise of Globes, both Cœlestiall and Terrestriall, one of the English editions of Robert Hues' Latin work Tractatus de Globis (1594)
Molyneux was known as a mathematician and maker of mathematical instruments such as compasses and hourglasses. He became acquainted with many prominent men of the day, including the writer Richard Hakluyt and the mathematicians Robert Hues and Edward Wright. He also knew the explorers Thomas Cavendish, Francis Drake, Walter Raleigh and John Davis. Davis probably introduced Molyneux to his own patron, the London merchant William Sanderson, who largely financed the construction of the globes. When completed, the globes were presented to Elizabeth I. Larger globes were acquired by royalty, noblemen and academic institutions, while smaller ones were purchased as practical navigation aids for sailors and students. The globes were the first to be made in such a way that they were unaffected by the humidity at sea, and they came into general use on ships. (Full article...)
The Robinson projection is a map projection of a world map which shows the entire world at once. It was devised by Arthur H. Robinson in 1963 in response to an appeal from the Rand McNally company for a good compromise to the problem of readily showing the whole globe as a flat image. The company has used the projection since that time, and the National Geographic Society used the Robinson from 1988 to 1998.
The Mollweide projection is an equal-area, pseudocylindrical map projection generally used for global maps of the world or night sky. The projection was first published by mathematician and astronomer Karl Mollweide of Leipzig in 1805 but reinvented and popularized in 1857 by Jacques Babinet. The projection trades accuracy of angle and shape for accuracy of proportions in area, and as such is used where that property is needed, such as maps depicting global distributions.
The Gall–Peters projection, named after James Gall and Arno Peters, is a specialization of a configurable equal-area map projection known as the cylindrical equal-area projection. It achieved considerable notoriety in the late 20th century as the centerpiece of a controversy surrounding the political implications of map design; Peters promoted it as a more faithful representation than the Mercator projection, which inflates the sizes of regions farther from the equator and thus makes the (mostly technologically underdeveloped) equatorial countries appear smaller and therefore, according to Peters, less significant.
Typhoon Noru was the second-longest lasting tropical cyclone of the northwest Pacific Ocean on record. The fifth named storm of the 2017 Pacific typhoon season, it formed on July 19 and reached peak intensity on July 31 with 175 km/h (110 mph) 10-minute sustained winds. By this time, as shown in this satellite image, the typhoon was located south of Iwo Jima, and had taken on annular characteristics, with a symmetric ring of deep convection surrounding a 30 km (19 mi) well defined eye and fairly uniform cloud top temperatures. Traveling northwestward over an area of low ocean heat content, the eye became enlarged and ragged as the system weakened. By the time Noru made landfall over Wakayama Prefecture, Japan, on August 7, it had been downgraded to a severe tropical storm. It then dissipated over the Sea of Japan on August 9 as an extratropical cyclone.
The Kavrayskiy VII projection is a map projection invented by Vladimir V. Kavrayskiy in 1939 as a general purpose pseudocylindrical projection. It produces maps with low overall distortion, despite its straight, evenly-spaced parallels and a simple formulation.
The General Perspective projection is a map projection used in cartography in which the Earth is depicted as viewed from a finite distance above its surface. If the view precisely faces the center of the Earth, the projection is a vertical perspective projection; otherwise, it is a tilted perspective projection. Here is shown a vertical perspective from an altitude of 35,786 km over (0°, 90°W), corresponding to a view from geostationary orbit. Due to the horizon as seen from the viewpoint position, the projection always shows less than half of the Earth's surface: in this case neither of the North and South Poles is visible.
The sinusoidal projection is a pseudocylindrical equal-areamap projection. Used as early as the 16th century, this projection shows distances accurately along the central meridian and the equator; areas furthest from these lines are the most distorted.
The Aitoff projection is a modified azimuthal map projection first proposed by David A. Aitoff in 1889. Based on the equatorial form of the azimuthal equidistant projection, Aitoff halved longitudes from the central meridian, projected by the azimuthal equidistant, and then stretched the result horizontally into a 2:1 ellipse.
A detailed eighteenth-century map of Scandinavia by J. B. Homann, depicting Denmark, Norway, Sweden, Finland and the Baltic states of Livonia, Latvia and Curlandia. The map notes fortified cities, villages, roads, bridges, forests, castles and topography. The elaborate title cartouche in the upper left quadrant features angels supporting a title curtain and a medallion supporting an alternative title in French, "Les Trois Covronnes du Nord".
Born in 1664, Homann became an engraver and cartographer in the late 17th century, and opened his own publishing house in 1702. In 1715 Emperor Charles VI appointed him Imperial Geographer of the Holy Roman Empire. Homann held the position until his death in 1724.
Photo: Jeff Schmaltz, MODIS Rapid Response Team, NASA
A satellite photo of Great Britain and part of Ireland showing the extent of snow cover during the winter of 2009–2010, the coldest in Europe since 1981–82. Starting on 16 December 2009 a persistent weather pattern brought cold moist air from the north with systems undergoing cyclogenesis from North American storms moving across the Atlantic Ocean to the west, and saw many parts of Europe experiencing heavy snowfall and record low temperatures.
Wallace did extensive fieldwork, starting in the Amazon River basin. He then did fieldwork in the Malay Archipelago, where he identified the faunal divide now termed the Wallace Line, which separates the Indonesian archipelago into two distinct parts: a western portion in which the animals are largely of Asian origin, and an eastern portion where the fauna reflect Australasia. He was considered the 19th century's leading expert on the geographical distribution of animal species, and is sometimes called the "father of biogeography", or more specifically of zoogeography. (Full article...)
A map of the United States showing its 50 states, federal district and five inhabited territories. Alaska, Hawaii, and the territories are shown at different scales, and the Aleutian Islands and the uninhabited northwestern Hawaiian Islands are omitted from the map. The United States of America is a federal republic consisting of 50 states, a federal district (Washington, D.C., the capital city of the United States), five major territories, and various minor islands. Both the states and the United States as a whole are each sovereign jurisdictions. The Tenth Amendment to the United States Constitution allows states to exercise all powers of government not delegated to the federal government. Each state has its own constitution and government, and all states and their residents are represented in the federal Congress, a bicameral legislature consisting of the Senate and the House of Representatives. Each state elects two senators, while representatives are distributed among the states in proportion to the most recent constitutionally mandated decennial census. Additionally, each state is entitled to select a number of electors to vote in the Electoral College, the body that elects the president of the United States, equal to the total of representatives and senators in Congress from that state. The federal district does not have representatives in the Senate, but has a non-voting delegate in the House, and it is also entitled to electors in the Electoral College. Congress can admit more states, but it cannot create a new state from territory of an existing state or merge two or more states into one without the consent of all states involved, and each new state is admitted on an equal footing with the existing states. (Full article...)
Generation Z (often shortened to Gen Z), also known as Zoomers, is the demographiccohort succeeding Millennials and preceding Generation Alpha. Researchers and popular media use the mid-to-late 1990s as starting birth years and the early 2010s as ending birth years, with the generation most frequently being defined as people born from 1997 to 2012. Most members of Generation Z are the children of younger baby boomers or Generation X. (Full article...)
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Map: Strebe, using GeocartThe Robinson projection is a map projection of a world map which shows the entire world at once. It was devised by Arthur H. Robinson in 1963 in response to an appeal from the Rand McNally company for a good compromise to the problem of readily showing the whole globe as a flat image. The company has used the projection since that time, and the National Geographic Society used the Robinson from 1988 to 1998.
Map: Strebe, using GeocartThe Hammer retroazimuthal projection is a modified azimuthal proposed by Ernst Hermann Heinrich Hammer in 1910. As a retroazimuthal projection, azimuths (directions) are correct from any point to the designated center point. In whole-world presentation, the back and front hemispheres overlap, making the projection a surjective function. Here, the frontside and backside hemispheres, both with a 15° graticule and center point of 45°N, 90°W, are presented side-by-side.
Map: Strebe, using GeocartThe Mollweide projection is an equal-area, pseudocylindrical map projection generally used for global maps of the world or night sky. The projection was first published by mathematician and astronomer Karl Mollweide of Leipzig in 1805 but reinvented and popularized in 1857 by Jacques Babinet. The projection trades accuracy of angle and shape for accuracy of proportions in area, and as such is used where that property is needed, such as maps depicting global distributions.
Map: Strebe, using GeocartThe Gall–Peters projection, named after James Gall and Arno Peters, is a specialization of a configurable equal-area map projection known as the cylindrical equal-area projection. It achieved considerable notoriety in the late 20th century as the centerpiece of a controversy surrounding the political implications of map design; Peters promoted it as a more faithful representation than the Mercator projection, which inflates the sizes of regions farther from the equator and thus makes the (mostly technologically underdeveloped) equatorial countries appear smaller and therefore, according to Peters, less significant.
Typhoon Noru was the second-longest lasting tropical cyclone of the northwest Pacific Ocean on record. The fifth named storm of the 2017 Pacific typhoon season, it formed on July 19 and reached peak intensity on July 31 with 175 km/h (110 mph) 10-minute sustained winds. By this time, as shown in this satellite image, the typhoon was located south of Iwo Jima, and had taken on annular characteristics, with a symmetric ring of deep convection surrounding a 30 km (19 mi) well defined eye and fairly uniform cloud top temperatures. Traveling northwestward over an area of low ocean heat content, the eye became enlarged and ragged as the system weakened. By the time Noru made landfall over Wakayama Prefecture, Japan, on August 7, it had been downgraded to a severe tropical storm. It then dissipated over the Sea of Japan on August 9 as an extratropical cyclone.
Map: Strebe, using the Geocart map projection softwareA map of the world using the Natural Earth projection, a pseudocylindrical projection which is neither conformal nor equal-area. The projection was designed by Tom Patterson, an American cartographer with the National Park Service who has developed several open-source tools and base maps for cartographers.
Photo credit: Luca GaluzziThe north face of Mount Everest, as seen from Tibet. Everest is the highest mountain on Earth, as measured by the height of its summit above sea level, which is 8,848 metres (29,029 ft). In 1865, Everest was given its official English name by the Royal Geographical Society upon recommendation of Andrew Waugh, the British Surveyor General of India at the time.
Map: Strebe, using GeocartThe Kavrayskiy VII projection is a map projection invented by Vladimir V. Kavrayskiy in 1939 as a general purpose pseudocylindrical projection. It produces maps with low overall distortion, despite its straight, evenly-spaced parallels and a simple formulation.
Map: Strebe, using GeocartThe General Perspective projection is a map projection used in cartography in which the Earth is depicted as viewed from a finite distance above its surface. If the view precisely faces the center of the Earth, the projection is a vertical perspective projection; otherwise, it is a tilted perspective projection. Here is shown a vertical perspective from an altitude of 35,786 km over (0°, 90°W), corresponding to a view from geostationary orbit. Due to the horizon as seen from the viewpoint position, the projection always shows less than half of the Earth's surface: in this case neither of the North and South Poles is visible.
Map: Strebe, using GeocartThe Chamberlin trimetric projection is a map projection where three points are fixed on the globe and the points on the sphere are mapped onto a plane by triangulation. It was developed in 1946 by Wellman Chamberlin for the National Geographic Society. It is neither conformal nor equal-area, but rather attempts to minimize distortion of distances everywhere with the side-effect of balancing between areal equivalence and conformality.
Map: Strebe, using GeocartThe sinusoidal projection is a pseudocylindrical equal-area map projection. Used as early as the 16th century, this projection shows distances accurately along the central meridian and the equator; areas furthest from these lines are the most distorted.
Map: Strebe, using GeocartThe Aitoff projection is a modified azimuthal map projection first proposed by David A. Aitoff in 1889. Based on the equatorial form of the azimuthal equidistant projection, Aitoff halved longitudes from the central meridian, projected by the azimuthal equidistant, and then stretched the result horizontally into a 2:1 ellipse.
Map: Strebe, using GeocartThe Albers projection is a conic, equal area map projection, named after Heinrich C. Albers, that uses two standard parallels. Although scale and shape are not preserved, distortion is minimal between the standard parallels. This map is used by such agencies as the United States Geological Survey, the United States Census Bureau, and the governments of British Columbia and Yukon.
A detailed eighteenth-century map of Scandinavia by J. B. Homann, depicting Denmark, Norway, Sweden, Finland and the Baltic states of Livonia, Latvia and Curlandia. The map notes fortified cities, villages, roads, bridges, forests, castles and topography. The elaborate title cartouche in the upper left quadrant features angels supporting a title curtain and a medallion supporting an alternative title in French, "Les Trois Covronnes du Nord".
Photo: Jeff Schmaltz, MODIS Rapid Response Team, NASAA satellite photo of Great Britain and part of Ireland showing the extent of snow cover during the winter of 2009–2010, the coldest in Europe since 1981–82. Starting on 16 December 2009 a persistent weather pattern brought cold moist air from the north with systems undergoing cyclogenesis from North American storms moving across the Atlantic Ocean to the west, and saw many parts of Europe experiencing heavy snowfall and record low temperatures.
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