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Eltanin Antenna
The Eltanin Antenna is an object photographed on the sea floor by the Antarctic oceanographic research ship USNS ''Eltanin'' in 1964, while photographing the sea bottom west of Cape Horn. Due to its regular antenna-like structure and upright position on the seafloor at a depth of , some proponents of fringe and UFO-related theories including Bruce Cathie have suggested that it might be an extraterrestrial artifact. Other authorities have suggested that the object photographed by the ''Eltanin'' was an unusual carnivorous sponge, ''Chondrocladia concrescens'' (formerly ''Cladorhiza concrescens''). History The 1,850-ton displacement vessel ''Eltanin'' was originally launched in 1957, and served with the United States Navy as a cargo-carrying icebreaker. In 1962, she was reclassified as an Oceanographic Research Ship and became the world's first dedicated Antarctic research vessel, a role she filled until 1975. On 29 August 1964, while taking sample cores and photographing the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eltanin Antenna
The Eltanin Antenna is an object photographed on the sea floor by the Antarctic oceanographic research ship USNS ''Eltanin'' in 1964, while photographing the sea bottom west of Cape Horn. Due to its regular antenna-like structure and upright position on the seafloor at a depth of , some proponents of fringe and UFO-related theories including Bruce Cathie have suggested that it might be an extraterrestrial artifact. Other authorities have suggested that the object photographed by the ''Eltanin'' was an unusual carnivorous sponge, ''Chondrocladia concrescens'' (formerly ''Cladorhiza concrescens''). History The 1,850-ton displacement vessel ''Eltanin'' was originally launched in 1957, and served with the United States Navy as a cargo-carrying icebreaker. In 1962, she was reclassified as an Oceanographic Research Ship and became the world's first dedicated Antarctic research vessel, a role she filled until 1975. On 29 August 1964, while taking sample cores and photographing the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Navy
The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage of its active battle fleet alone exceeding the next 13 navies combined, including 11 allies or partner nations of the United States as of 2015. It has the highest combined battle fleet tonnage (4,635,628 tonnes as of 2019) and the world's largest aircraft carrier fleet, with eleven in service, two new carriers under construction, and five other carriers planned. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the United States Navy is the third largest of the United States military service branches in terms of personnel. It has 290 deployable combat vessels and more than 2,623 operational aircraft . The United States Navy traces its origins to the Continental Navy, which was established during the American Revo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Agassiz
Alexander Emmanuel Rodolphe Agassiz (December 17, 1835March 27, 1910), son of Louis Agassiz and stepson of Elizabeth Cabot Agassiz, was an American scientist and engineer. Biography Agassiz was born in Neuchâtel, Switzerland and immigrated to the United States with his parents, Louis and Cecile (Braun) Agassiz, in 1846. He graduated from Harvard University in 1855, subsequently studying engineering and chemistry, and taking the degree of Bachelor of Science at the Lawrence Scientific School of the same institution in 1857; in 1859 became an assistant in the United States Coast Survey. Thenceforward he became a specialist in marine ichthyology. Agassiz was elected a Fellow of the American Academy of Arts and Sciences in 1862. Up until the summer of 1866, Agassiz worked as assistant curator in the museum of natural history that his father founded at Harvard. E. J. Hulbert, a friend of Agassiz's brother-in-law, Quincy Adams Shaw, had discovered a rich copper lode known as the C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladorhiza Concrescens
''Chondrocladia concrescens'' (formerly ''Cladorhiza concrescens'') is a species of deep-sea carnivorous sponge in the family Cladorhizidae. It is commonly known as the "ping pong tree sponge" due to its distinctive tree-like shape with multiple branches. The species is found in the eastern Pacific Ocean and can grow up to one meter in height. Description The ping pong tree sponge has a long stem-like holdfast that anchors it to the seafloor. From this holdfast, the sponge produces long, branching structures with nodes that give rise to clusters of four to six club-shaped appendages. The appendages are covered with tiny hooks that capture small crustaceans and other invertebrates, which the sponge feeds on. The species has a unique appearance that resembles a tree with multiple branches and is a distinguishing feature of the deep-sea ecosystem. Reproduction The ping pong tree sponge has a complex life cycle that involves both sexual and asexual reproduction. In the asexual p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladorhiza Concrescens Agassiz Illustration
''Cladorhiza'' is a genus of carnivorous sponges, comprising around 40 species found in oceans around the world. ''Cladorhiza'' is the type genus of the family Cladorhizidae Cladorhizidae is a family of demosponges which are carnivorous and prey on crustaceans and other small animals. They are deep sea sponges typically found on oceanic ridges and seamount systems. As of 2017, nine new species have been discovered .... Description Species of ''Cladorhiza'' occur in a diverse range of shapes, some ranging from globular to spherical to conical, with others attaining a tree-like or bush-like appearance. Many species have a narrow stalk or stem. Most species range from 2 to 12 cm in height, with a few attaining heights of 20 to 40 cm. Species As of 2014, 40 valid species of Cladorhiza are recognized.van Soest, R. (2014)''Cladorhiza'' Sars, 1872 In: Van Soest, R.W.M; Boury-Esnault, N.; Hooper, J.N.A.; Rützler, K.; de Voogd, N.J.; Alvarez de Glasby, B.; Hajdu, E.; Pi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saga Magazine
Saga is a British company focused on serving the needs of those aged 50 and over. It has 2.7 million customers. The company operates sites on the Kent and Sussex coast: Enbrook Park and Priory Square. It is listed on the London Stock Exchange. History The business was founded by Sidney De Haan in 1951 and was passed to his son Roger De Haan who took over in 1984 after his father's retirement. Saga was acquired by staff (20%) backed by the private equity firm Charterhouse in October 2004. Saga merged with The AA (owned by CVC and Permira) to form Acromas Holdings. In July 2011, Saga acquired Allied Healthcare. On 31 January 2015, it wrote it down to zero, and then sold it, at a small net profit, to Aurelius Group in December 2015. In May 2014, Saga Group Ltd was successfully listed on the London Stock Exchange as Saga PLC. Also in 2014, Saga acquired Bolton based luxury holiday company, Destinology. In January 2020, Saga appointed Euan Sutherland as CEO of the Saga Group. At ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brad Steiger
Brad Steiger (February 19, 1936 – May 6, 2018) was an American author of fiction and non-fiction works on the paranormal, spirituality, UFOs, true crime and biographies. His books sold well to the public but were widely criticized by academics and skeptics for making far-fetched claims without scientific evidence. Biography Steiger was born as Eugene E. Olson on February 19, 1936, at the Fort Dodge Lutheran Hospital during a blizzard. He grew up on a farm in Bode, Iowa. He identified as Lutheran until the age of eleven, when a near-death experience changed his religious beliefs. His parents encouraged him to become a teacher. He graduated from Luther College (Iowa) in 1957 and the University of Iowa in 1963. He taught high school English before teaching Literature and Creative Writing at his former college from 1963 to 1967. Steiger claimed to have written his first book at age seven. His first book, ''Ghosts, Ghouls and Other Peculiar People'', was published in 1965. He b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand Herald
''The New Zealand Herald'' is a daily newspaper published in Auckland, New Zealand, owned by New Zealand Media and Entertainment, and considered a newspaper of record for New Zealand. It has the largest newspaper circulation of all newspapers in New Zealand, peaking at over 200,000 copies in 2006, although circulation of the daily ''Herald'' had declined to 100,073 copies on average by September 2019. Its main circulation area is the Auckland region. It is also delivered to much of the upper North Island including Northland, Waikato and King Country. History ''The New Zealand Herald'' was founded by William Chisholm Wilson, and first published on 13 November 1863. Wilson had been a partner with John Williamson in the ''New Zealander'', but left to start a rival daily newspaper as he saw a business opportunity with Auckland's rapidly growing population. He had also split with Williamson because Wilson supported the war against the Māori (which the ''Herald'' termed "the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Research Vessel
A research vessel (RV or R/V) is a ship or boat designed, modified, or equipped to carry out research at sea. Research vessels carry out a number of roles. Some of these roles can be combined into a single vessel but others require a dedicated vessel. Due to the demanding nature of the work, research vessels may be constructed around an icebreaker hull, allowing them to operate in polar waters. History The research ship had origins in the early voyages of exploration. By the time of James Cook's ''Endeavour'', the essentials of what today we would call a research ship are clearly apparent. In 1766, the Royal Society hired Cook to travel to the Pacific Ocean to observe and record the transit of Venus across the Sun. The ''Endeavour'' was a sturdy vessel, well designed and equipped for the ordeals she would face, and fitted out with facilities for her "research personnel", Joseph Banks. As is common with contemporary research vessels, ''Endeavour'' also carried out more than ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Icebreaker
An icebreaker is a special-purpose ship or boat designed to move and navigate through ice-covered waters, and provide safe waterways for other boats and ships. Although the term usually refers to ice-breaking ships, it may also refer to smaller vessels, such as the icebreaking boats that were once used on the canals of the United Kingdom. For a ship to be considered an icebreaker, it requires three traits most normal ships lack: a strengthened hull, an ice-clearing shape, and the power to push through sea ice. Icebreakers clear paths by pushing straight into frozen-over water or pack ice. The bending strength of sea ice is low enough that the ice breaks usually without noticeable change in the vessel's trim. In cases of very thick ice, an icebreaker can drive its bow onto the ice to break it under the weight of the ship. A buildup of broken ice in front of a ship can slow it down much more than the breaking of the ice itself, so icebreakers have a specially designed hull to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Displacement (ship)
The displacement or displacement tonnage of a ship is its weight. As the term indicates, it is measured indirectly, using Archimedes' principle, by first calculating the volume of water displaced by the ship, then converting that value into weight. Traditionally, various measurement rules have been in use, giving various measures in long tons. Today, tonnes are more commonly used. Ship displacement varies by a vessel's degree of load, from its empty weight as designed (known as "lightweight tonnage") to its maximum load. Numerous specific terms are used to describe varying levels of load and trim, detailed below. Ship displacement should not be confused with measurements of volume or capacity typically used for commercial vessels and measured by tonnage: net tonnage and gross tonnage. Calculation The process of determining a vessel's displacement begins with measuring its draft.George, 2005. p.5. This is accomplished by means of its "draft marks" (or "load lines"). A mer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Floor
The seabed (also known as the seafloor, sea floor, ocean floor, and ocean bottom) is the bottom of the ocean. All floors of the ocean are known as 'seabeds'. The structure of the seabed of the global ocean is governed by plate tectonics. Most of the ocean is very deep, where the seabed is known as the abyssal plain. Seafloor spreading creates mid-ocean ridges along the center line of major ocean basins, where the seabed is slightly shallower than the surrounding abyssal plain. From the abyssal plain, the seabed slopes upward toward the continents and becomes, in order from deep to shallow, the continental rise, slope, and shelf. The depth within the seabed itself, such as the depth down through a sediment core, is known as the “depth below seafloor.” The ecological environment of the seabed and the deepest waters are collectively known, as a habitat for creatures, as the “benthos.” Most of the seabed throughout the world's oceans is covered in layers of marine sediments. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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