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Castle Bank
Castle Bank is a fossil deposit in Wales that is 462 million years old and dates from the middle Ordovician period when Mid Wales was covered by an ocean basin. Fossil discoveries When 2020 COVID-19 lockdowns prevented Llandrindod residents and researchers for Amgueddfa Cymru – Museum Wales, Joe Botting and Lucy Muir, from travelling, they reinvestigated a site they had discovered a decade earlier in a nearby sheep field. They had failed to find the site interesting at the time because it was just a 10-meter-wide quarry. More careful examination has revealed an exceptional find among fossils. So far, 170 species have been found, among them more than 30 panarthropods and what resembles a marine relative of insects. Being from the middle Ordovician, the fossils coincide with the Great Ordovician Biodiversification Event. What makes these fossils differerent from those found in places such as the Cambrian fossils of the Burgess Shale The Burgess Shale is a fossil-bearing dep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
20221119 Mieridduryn Bonniae Diagrammatic Reconstruction
Year 1119 ( MCXIX) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. Events By place Levant * June 28 – Battle of Ager Sanguinis: The Crusader army of the Principality of Antioch under Roger of Salerno is ambushed and annihilated (near Sarmada) by the combined Muslim forces (20,000 men) of Ilghazi, the Artuqid ruler of Aleppo. Muslim troops are sent to raid the suburbs of Antioch and sack the port of Saint Symeon. The Crusader fortresses at Atarib, Zardana, Sarmin, Ma'arrat al-Nu'man and Kafr Tab are captured. Ilghazi makes a triumphant entry at Aleppo, Crusader prisoners are dragged in chains – where they are tortured to death in the streets. The massacre leads to the name of the battle, ''Ager Sanguinis'' (or "the Field of Death"). * August 14 – Battle of Hab: The Crusaders under King Baldwin II of Jerusalem (supported by forces of Count Pons of Tripoli) defeat Ilghazi's army at Ariha in Syria. Ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phys
Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge which relates to the order of nature, or, in other words, to the regular succession of events." Physics is one of the most fundamental scientific disciplines, with its main goal being to understand how the universe behaves. "Physics is one of the most fundamental of the sciences. Scientists of all disciplines use the ideas of physics, including chemists who study the structure of molecules, paleontologists who try to reconstruct how dinosaurs walked, and climatologists who study how human activities affect the atmosphere and oceans. Physics is also the foundation of all engineering and technology. No engineer could design a flat-screen TV, an interplanetary spacecraft, or even a better mousetrap without first understanding the basic laws of physics. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossiliferous Stratigraphic Units In Wales
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. Early edition, published online before print. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burgess Shale
The Burgess Shale is a fossil-bearing deposit exposed in the Canadian Rockies of British Columbia, Canada. It is famous for the exceptional preservation of the soft parts of its fossils. At old (middle Cambrian), it is one of the earliest fossil beds containing soft-part imprints. The rock unit is a black shale and crops out at a number of localities near the town of Field in Yoho National Park and the Kicking Horse Pass. Another outcrop is in Kootenay National Park 42 km to the south. History and significance The Burgess Shale was discovered by palaeontologist Charles Walcott on 30 August 1909, towards the end of the season's fieldwork. He returned in 1910 with his sons, daughter, and wife, establishing a quarry on the flanks of Fossil Ridge. The significance of soft-bodied preservation, and the range of organisms he recognised as new to science, led him to return to the quarry almost every year until 1924. At that point, aged 74, he had amassed over 65,000 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambrian
The Cambrian Period ( ; sometimes symbolized Ꞓ) was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon. The Cambrian lasted 53.4 million years from the end of the preceding Ediacaran Period 538.8 million years ago (mya) to the beginning of the Ordovician Period mya. Its subdivisions, and its base, are somewhat in flux. The period was established as "Cambrian series" by Adam Sedgwick, who named it after Cambria, the Latin name for 'Cymru' (Wales), where Britain's Cambrian rocks are best exposed. Sedgwick identified the layer as part of his task, along with Roderick Murchison, to subdivide the large "Transition Series", although the two geologists disagreed for a while on the appropriate categorization. The Cambrian is unique in its unusually high proportion of sedimentary deposits, sites of exceptional preservation where "soft" parts of organisms are preserved as well as their more resistant shells. As a result, our understanding of the Cambria ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Ordovician Biodiversification Event
The Great Ordovician Biodiversification Event (GOBE), was an evolutionary radiation of animal life throughout the Ordovician period, 40 million years after the Cambrian explosion, whereby the distinctive Cambrian fauna fizzled out to be replaced with a Paleozoic fauna rich in suspension feeder and pelagic animals. It followed a series of Cambrian–Ordovician extinction events, and the resulting fauna went on to dominate the Palaeozoic relatively unchanged. Marine diversity increased to levels typical of the Palaeozoic, and morphological disparity was similar to today's. The diversity increase was neither global nor instantaneous; it happened at different times in different places. Consequently, there is unlikely to be a simple or straightforward explanation for the event; the interplay of many geological and ecological factors likely produced the diversification. Causes Possible causes include changes in palaeogeography or tectonic activity, a modified nutrient supply, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nature Portfolio
Nature Portfolio (formerly known as Nature Publishing Group and Nature Research) is a division of the international scientific publishing company Springer Nature that publishes academic journals, magazines, online databases, and services in science and medicine. Nature Research's flagship publication is ''Nature'', a weekly multidisciplinary journal first published in 1869. It also publishes the ''Nature-''titled research journals, ''Nature Reviews'' journals (since 2000), society-owned academic journals, and a range of open access journals, including '' Scientific Reports'' and '' Nature Communications''. Springer Nature also publishes ''Scientific American'' in 16 languages, a magazine intended for the general public. In 2013, prior to the merger with Springer and the creation of Springer Nature, Nature Publishing Group's owner, Holtzbrinck Publishing Group, bought a controlling stake in Frontiers. Before Springer Nature was formed in 2015, Nature Research (as the Nature Pu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nature (journal)
''Nature'' is a British weekly scientific journal founded and based in London, England. As a multidisciplinary publication, ''Nature'' features peer-reviewed research from a variety of academic disciplines, mainly in science and technology. It has core editorial offices across the United States, continental Europe, and Asia under the international scientific publishing company Springer Nature. ''Nature'' was one of the world's most cited scientific journals by the Science Edition of the 2019 '' Journal Citation Reports'' (with an ascribed impact factor of 42.778), making it one of the world's most-read and most prestigious academic journals. , it claimed an online readership of about three million unique readers per month. Founded in autumn 1869, ''Nature'' was first circulated by Norman Lockyer and Alexander Macmillan as a public forum for scientific innovations. The mid-20th century facilitated an editorial expansion for the journal; ''Nature'' redoubled its efforts in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amgueddfa Cymru – Museum Wales
Amgueddfa Cymru – Museum Wales, branded as simply Amgueddfa Cymru (formerly the National Museums and Galleries of Wales and legally National Museum of Wales), is a Welsh Government sponsored body that comprises seven museums in Wales: * National Museum Cardiff – formerly the National Museum of Wales * St Fagans National Museum of History, Cardiff * Big Pit National Coal Museum, Blaenavon * National Wool Museum, Dre-fach Felindre near Llandysul * National Slate Museum, Llanberis * National Roman Legion Museum, Caerleon * National Waterfront Museum, Swansea In addition to these sites, the organisation runs Oriel y Parc, a gallery of Welsh landscape art in St David's, in partnership with the Pembrokeshire Coast National Park Authority. The National Collections Centre in Nantgarw is AC-NMW's storage facility. Directors of the National Museum of Wales * William Evans Hoyle (1908–1924) * Sir Mortimer Wheeler (1925–1926) * Sir Cyril Fox (1926–1948) * D. Dilwyn John (1948 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. Early edition, published online before print. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the abs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Llandrindod Wells
Llandrindod Wells (, ; cy, Llandrindod, /ɬanˈdɾindɔd/ "Trinity Parish"), sometimes known colloquially as Llandod, is a town and community in Powys, within the historic boundaries of Radnorshire, Wales. It serves as the seat of Powys County Council and thus the administrative centre of Powys. It was developed as a spa town in the 19th century, with a boom in the late 20th century as a centre of local government. Before the 1860s the site of the town was common land in Llanfihangel Cefnllys parish. Llandrindod Wells is the fifth largest town in Powys and the largest in Radnorshire. History During the mid-18th century, the 'healing qualities' of the local spring waters attracted visitors to the area resulting in an economic boom with the building of a 'splendid' hotel at Llandrindod Hall. A period of relative decline during the late 18th and early 19th centuries was reversed with the construction of the Heart of Wales line making Llandrindod accessible from south Wal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COVID-19 Lockdowns
Due to the COVID-19 pandemic, a number of non-pharmaceutical interventions colloquially known as lockdowns (encompassing stay-at-home orders, curfews, quarantines, and similar societal restrictions) have been implemented in numerous countries and territories around the world. These restrictions were established with the intention to reduce the spread of SARS-CoV-2, the virus that causes COVID-19. By April 2020, about half of the world's population was under some form of lockdown, with more than 3.9 billion people in more than 90 countries or territories having been asked or ordered to stay at home by their governments. Although similar disease control measures have been used for hundreds of years, the scale of those implemented in the 2020s is thought to be unprecedented. Research and case studies have shown that lockdowns were generally effective at reducing the spread of COVID-19, therefore flattening the curve. The World Health Organization's recommendation on cu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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