|
Confluence Point
The Degree Confluence Project is a World Wide Web-based, all-volunteer project which aims to have people visit each of the integer degree intersections of latitude and longitude on Earth, posting photographs and a narrative of each visit online. The project describes itself as "an organized sampling of the world". Requirements The precise location of each degree confluence uses the WGS 84 horizontal datum, and visitors to degree confluences almost always make use of GNSS receivers. For a ''successful visit'', the visitor must get within 100 metres of the confluence point, and post a narrative and several photographs to the project website. A visit, or attempted visit, which does not conform to these rules may still be recorded on the website as an ''incomplete visit''. The project encourages visits to degree confluences which have been visited previously, and many confluence points - especially in non-remote regions of developed nations - have been visited several times. The tot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Confluence Point 53N 0
In geography, a confluence (also: ''conflux'') occurs where two or more flowing bodies of water join to form a single channel. A confluence can occur in several configurations: at the point where a tributary joins a larger river (main stem); or where two streams meet to become the river source, source of a river of a new name (such as the confluence of the Monongahela River, Monongahela and Allegheny River, Allegheny rivers at Pittsburgh, forming the Ohio River, Ohio); or where two separated channels of a river (forming a river island) rejoin at the downstream end. Scientific study of confluences Confluences are studied in a variety of sciences. Hydrology studies the characteristic flow patterns of confluences and how they give rise to patterns of erosion, bars, and scour pools. The water flows and their consequences are often studied with mathematical models. Confluences are relevant to the distribution of living organisms (i.e., ecology) as well; "the general pattern [downstr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arctic
The Arctic ( or ) is a polar regions of Earth, polar region located at the northernmost part of Earth. The Arctic consists of the Arctic Ocean, adjacent seas, and parts of Canada (Yukon, Northwest Territories, Nunavut), Danish Realm (Greenland), Finland, Iceland, Norway, Russia (Murmansk Oblast, Murmansk, Siberia, Nenets Autonomous Okrug, Nenets Okrug, Novaya Zemlya), Sweden and the United States (Alaska). Land within the Arctic region has seasonally varying snow and sea ice, ice cover, with predominantly treeless permafrost (permanently frozen underground ice) containing tundra. Arctic seas contain seasonal sea ice in many places. The Arctic region is a unique area among Earth's ecosystems. The cultures in the region and the Arctic indigenous peoples have adapted to its cold and extreme conditions. Life in the Arctic includes zooplankton and phytoplankton, fish and marine mammals, birds, land animals, plants and human societies. Arctic land is bordered by the subarctic. De ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Global Positioning System
The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It is one of the global navigation satellite systems (GNSS) that provides geolocation and time information to a GPS receiver anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. It does not require the user to transmit any data, and operates independently of any telephonic or Internet reception, though these technologies can enhance the usefulness of the GPS positioning information. It provides critical positioning capabilities to military, civil, and commercial users around the world. Although the United States government created, controls and maintains the GPS system, it is freely accessible to anyone with a GPS receiver. The GPS project was started by the U.S. Department of Defense in 1973. The first prototype spacecraft was lau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photography Websites
Photography is the art, application, and practice of creating durable images by recording light, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film. It is employed in many fields of science, manufacturing (e.g., photolithography), and business, as well as its more direct uses for art, film and video production, recreational purposes, hobby, and mass communication. Typically, a lens is used to focus the light reflected or emitted from objects into a real image on the light-sensitive surface inside a camera during a timed exposure. With an electronic image sensor, this produces an electrical charge at each pixel, which is electronically processed and stored in a digital image file for subsequent display or processing. The result with photographic emulsion is an invisible latent image, which is later chemically "developed" into a visible image, either negative or positive, depending on the purpose ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geograph Britain And Ireland
Geograph Britain and Ireland is a web-based project, begun in March 2005, to create a freely accessible archive of geographically located photographs of Great Britain and Ireland. Photographs in the Geograph collection are chosen to illustrate significant or typical features of each 1 km × 1 km (100 ha) grid square in the Ordnance Survey National Grid and the Irish national grid reference system.Hawgood D. Geograph or supplemental (June 2007) (accessed 13 March 2008) There are 332,216 such grid squares containing at least some land or permanent structure (at low tide), of which 280,037 have Geographs. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geocaching
Geocaching is an outdoor recreational activity, in which participants use a Global Positioning System (GPS) receiver or mobile device and other navigational techniques to hide and seek containers, called "geocaches" or "caches", at specific locations marked by coordinates all over the world. As of 2021 there were over a million active players in the United States. Geocaching can be considered a Location-based game. A typical cache is a small waterproof container containing a logbook and sometimes a pen or pencil. The geocacher signs the log with their established code name and dates it, in order to prove that they found the cache. After signing the log, the cache must be placed back exactly where the person found it. Larger containers such as plastic storage containers (Tupperware or similar) or ammo boxes can also contain items for trading, such as toys or trinkets, usually of more sentimental worth than financial. Geocaching shares many aspects with benchmarking, trigp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
72nd Meridian West
The meridian 72° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Atlantic Ocean, the Caribbean Sea, South America, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole. The 72nd meridian west forms a great circle with the 108th meridian east. From Pole to Pole Starting at the North Pole and heading south to the South Pole, the 72nd meridian west passes through: : See also * 71st meridian west *73rd meridian west The meridian 73° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Atlantic Ocean, the Caribbean Sea, South America, the Pacific Ocean, the Southern Ocean, and Antarctica to th ... {{geographical coordinates, state=collapsed w072 meridian west ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
43rd Parallel North
The 43rd parallel north is a circle of latitude that is 43 degrees north of the Earth's equatorial plane. It crosses Europe, the Mediterranean Sea, Asia, the Pacific Ocean, North America, and the Atlantic Ocean. On 21 June the sun averages, with negligible variance, its local maximum, 70.83 degrees in the sky. At this latitude the sun is visible for 15 hours, 22 minutes during the summer solstice and 9 hours, 0 minutes during the winter solstice. Around the world Starting at the Prime Meridian and heading eastwards, the parallel 43° north passes through: : See also *42nd parallel north *44th parallel north The 44th parallel north is a circle of latitude that is 44 degrees north of the Earth, Earth's equator, equatorial plane. It crosses Europe, the Mediterranean Sea, Asia, the Pacific Ocean, North America, and the Atlantic Ocean. At this latitu ... References {{DEFAULTSORT:43rd Parallel North n43 Borders of Nebraska Borders of South Dakota ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ciudad Mitad Del Mundo
The Ciudad Mitad del Mundo (, ''Middle of the World City'') is a tract of land owned by the prefecture of the province of Pichincha, Ecuador. It is located at San Antonio parish of the canton of Quito, north of the center of Quito. The grounds contain the Monument to the Equator, which highlights the exact location of the Equator (from which the country takes its name) and commemorates the eighteenth century Franco-Spanish Geodesic Mission which fixed its approximate location; they also contain the Museo Etnográfico Mitad del Mundo, Ethnographic Museum Middle of the Earth, a museum about the indigenous people ethnography of Ecuador. The monument was constructed between 1979 and 1982 by Architect and Contractor Alfredo Fabián Páez with Carlos Mancheno President of Pichincha's Province Council to replace an older, smaller monument built by the Government of Ecuador under the direction of the geographer Luis Tufiño in 1936. It is made of iron and concrete and covered with c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geographic Pole
A geographical pole or geographic pole is either of the two points on Earth where its axis of rotation intersects its surface. The North Pole lies in the Arctic Ocean while the South Pole is in Antarctica. North and South poles are also defined for other planets or satellites in the Solar System, with a North pole being on the same side of the invariable plane as Earth's North pole. Relative to Earth's surface, the geographic poles move by a few metres over periods of a few years. This is a combination of Chandler wobble, a free oscillation with a period of about 433 days; an annual motion responding to seasonal movements of air and water masses; and an irregular drift towards the 80th west meridian. As cartography requires exact and unchanging coordinates, the averaged locations of geographical poles are taken as fixed ''cartographic poles'' and become the points where the body's great circles of longitude intersect. See also * Earth's rotation * Polar motion * Poles of astr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctic
The Antarctic ( or , American English also or ; commonly ) is a polar region around Earth's South Pole, opposite the Arctic region around the North Pole. The Antarctic comprises the continent of Antarctica, the Kerguelen Plateau and other island territories located on the Antarctic Plate or south of the Antarctic Convergence. The Antarctic region includes the ice shelves, waters, and all the island territories in the Southern Ocean situated south of the Antarctic Convergence, a zone approximately wide varying in latitude seasonally. The region covers some 20 percent of the Southern Hemisphere, of which 5.5 percent (14 million km2) is the surface area of the Antarctica continent itself. All of the land and ice shelves south of 60°S latitude are administered under the Antarctic Treaty System. Biogeographically, the Antarctic realm is one of eight biogeographic realms of Earth's land surface. Geography As defined by the Antarctic Treaty System, the Antarctic r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.svg "Click for more on -> Arctic")
