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Lunar Standstill
A lunar standstill or lunistice is when the moon reaches its furthest north or furthest south point during the course of a month (specifically a draconic month of about 27.2 days). The declination (a celestial coordinate measured as the angle from the celestial equator, analogous to latitude) at lunar standstill varies in a cycle 18.6 years long between 18.134° (north or south) and 28.725° (north or south), due to lunar precession. These extremes are called the minor and major lunar standstills. The last minor lunar standstill was in October 2015, and the next one will be in May 2034. The last major lunar standstill was in June 2006, and the next one will be in January 2025. Presently the northern lunistice occurs when the moon is in Taurus, northern Orion, Gemini, or sometimes the southernmost part of Auriga (as at the time of a major lunistice). The southern lunistice occurs when the moon is in Sagittarius or Ophiuchus. Due to precession of the earth's axis, the northern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moon
The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of Australia). The Moon is a planetary-mass object with a differentiated rocky body, making it a satellite planet under the geophysical definitions of the term and larger than all known dwarf planets of the Solar System. It lacks any significant atmosphere, hydrosphere, or magnetic field. Its surface gravity is about one-sixth of Earth's at , with Jupiter's moon Io being the only satellite in the Solar System known to have a higher surface gravity and density. The Moon orbits Earth at an average distance of , or about 30 times Earth's diameter. Its gravitational influence is the main driver of Earth's tides and very slowly lengthens Earth's day. The Moon's orbit around Earth has a sidereal period of 27.3 days. During each synodic period ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle Latitudes
The middle latitudes (also called the mid-latitudes, sometimes midlatitudes, or moderate latitudes) are a spatial region on Earth located between the Tropic of Cancer (latitudes 23°26'22") to the Arctic Circle (66°33'39"), and Tropic of Capricorn (-23°26'22") to the Antarctic Circle (-66°33'39"). They include Earth's subtropical and temperate zones, which lie between the two tropics and the polar circles. Weather fronts and extratropical cyclones are usually found in this area, as well as occasional tropical cyclones or subtropical cyclones, which have traveled from their areas of formation closer to the Equator. The prevailing winds in the middle latitudes are often very strong. These parts of the world also see a wide variety of fast-changing weather as cold air masses from the poles and warm air masses from the tropics constantly push up and down over them against each other, sometimes alternating within hours of each other, especially in the roaring forties (latitudes betw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Hopewell Sites
This is a list of Hopewell sites. The Hopewell tradition (also incorrectly called the "Hopewell culture") refers to the common aspects of the Native American culture that flourished along rivers in the northeastern and midwestern United States from 200 BCE to 500 CE. The Hopewell tradition was not a single culture or society, but a widely dispersed set of related populations that were connected by a common network of trade routes, known as the Hopewell Exchange System. See also * Hopewell tradition * National Register of Historic Places listings in Ross County, Ohio * National Register of Historic Places listings in Warren County, Ohio __NOTOC__ This is a list of the National Register of Historic Places listings in Warren County, Ohio. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Warren County, Ohio, Uni ... References External links {{Pre-Columbian North America +Sites Hopewell sites +H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado
Colorado (, other variants) is a state in the Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains. Colorado is the eighth most extensive and 21st most populous U.S. state. The 2020 United States census enumerated the population of Colorado at 5,773,714, an increase of 14.80% since the 2010 United States census. The region has been inhabited by Native Americans and their ancestors for at least 13,500 years and possibly much longer. The eastern edge of the Rocky Mountains was a major migration route for early peoples who spread throughout the Americas. "''Colorado''" is the Spanish adjective meaning "ruddy", the color of the Fountain Formation outcroppings found up and down the Front Range of the Rocky Mountains. The Territory of Colorado was organized on February 28, 1861, and on August 1, 1876, U.S. President Ulyss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chimney Rock National Monument
Chimney Rock National Monument is a U.S. National Monument in San Juan National Forest in southwestern Colorado which includes an archaeological site. This area is located in Archuleta County, Colorado, between Durango and Pagosa Springs, and is managed for archaeological protection, public interpretation, and education. The Chimney Rock Archaeological Site has been listed on the National Register of Historic Places since 1970. U.S. President Barack Obama created Chimney Rock National Monument by proclamation on September 21, 2012 under authority of the Antiquities Act. Geography Chimney Rock National Monument lies on 4,726 acres (19 km2) of San Juan National Forest land surrounded by the Southern Ute Indian Reservation. The Chimney Rock Archeological Area, listed in the National Register of Historic Places in 1970, consists of a central 960 acres. Chimney Rock itself is approximately 315 feet (96 m) tall. Next to Chimney Rock is Companion Rock, which is a popula ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neopagan
Modern paganism, also known as contemporary paganism and neopaganism, is a term for a religion or family of religions influenced by the various historical pre-Christian beliefs of pre-modern peoples in Europe and adjacent areas of North Africa and the Near East. Although they share similarities, contemporary pagan movements are diverse, and do not share a single set of beliefs, practices, or texts. Scholars of religion may characterise these traditions as new religious movements. Some academics who study the phenomenon treat it as a movement that is divided into different religions while others characterize it as a single religion of which different pagan faiths are denominations. Because of these different approaches there is disagreement on when or if the term ''pagan'' should be capitalized, though specialists in the field of pagan studies tend towards capitalisation. Prominent modern pagan religions include Wicca, Druidry, Heathenry, Rodnovery, and the Goddess movement ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Ireland
The prehistory of Ireland has been pieced together from archaeological evidence, which has grown at an increasing rate over the last decades. It begins with the first evidence of permanent human residence in Ireland around 10,500 BC (although there is evidence of human presence as early as 31,000 BC) and finishes with the start of the historical record around 400 AD. Both the beginning and end dates of the period are later than for much of Europe and all of the Near East. The prehistoric period covers the Palaeolithic, Mesolithic, Neolithic, Bronze Age and Iron Age societies of Ireland. For much of Europe, the historical record begins when the Romans invaded; as Ireland was not invaded by the Romans its historical record starts later, with the coming of Christianity. The two periods that have left the most spectacular groups of remains are the Neolithic, with its megalithic tombs, and the gold jewellery of the Bronze Age, when Ireland was a major centre of gold mining. Ir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Britain
Several species of humans have intermittently occupied Great Britain for almost a million years. The earliest evidence of human occupation around 900,000 years ago is at Happisburgh on the Norfolk coast, with stone tools and footprints probably made by ''Homo antecessor''. The oldest human fossils, around 500,000 years old, are of ''Homo heidelbergensis'' at Boxgrove in Sussex. Until this time Britain had been permanently connected to the Continent by a chalk ridge between South East England and northern France called the Weald-Artois Anticline, but during the Anglian Glaciation around 425,000 years ago a megaflood broke through the ridge, and Britain became an island when sea levels rose during the following Hoxnian interglacial. Fossils of very early Neanderthals dating to around 400,000 years ago have been found at Swanscombe in Kent, and of classic Neanderthals about 225,000 years old at Pontnewydd in Wales. Britain was unoccupied by humans between 180,000 and 60,000 yea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megalithic Monument
A megalith is a large Rock (geology), stone that has been used to construct a prehistoric structure or monument, either alone or together with other stones. There are over 35,000 in Europe alone, located widely from Sweden to the Mediterranean sea. The word was first used in 1849 by the British antiquarian Algernon Herbert in reference to Stonehenge and derives from the Ancient Greek words "wikt:μέγας, mega" for great and "wikt:λίθος, lithos" for stone. Most extant megaliths were erected between the Neolithic period (although earlier Mesolithic examples are known) through the Chalcolithic, Chalcolithic period and into the Bronze Age. At that time, the beliefs that developed were dynamism and animism, because Indonesia experienced the megalithic age or the great stone age in 2100 to 4000 BC. So that humans ancient tribe worship certain objects that are considered to have supernatural powers. Some relics of the megalithic era are menhirs (stone monuments) and dolm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bronze Age
The Bronze Age is a historic period, lasting approximately from 3300 BC to 1200 BC, characterized by the use of bronze, the presence of writing in some areas, and other early features of urban civilization. The Bronze Age is the second principal period of the three-age system proposed in 1836 by Christian Jürgensen Thomsen for classifying and studying ancient societies and history. An ancient civilization is deemed to be part of the Bronze Age because it either produced bronze by smelting its own copper and alloying it with tin, arsenic, or other metals, or traded other items for bronze from production areas elsewhere. Bronze is harder and more durable than the other metals available at the time, allowing Bronze Age civilizations to gain a technological advantage. While terrestrial iron is naturally abundant, the higher temperature required for smelting, , in addition to the greater difficulty of working with the metal, placed it out of reach of common use until the end o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemispheres Of Earth
Hemispheres of Earth in geography and cartography, are any division of the globe into two hemispheres (). Geographical Hemispheres The primary hemispherical split geographically is made by latitudinal (north/south) and longitudinal (east-west) markers: * North–South ** Northern Hemisphere, the half that lies north of the Equator ** Southern Hemisphere, the half that lies south of the Equator * East–West ** Eastern Hemisphere, the half that lies east of the prime meridian and west of the 180th meridian ** Western Hemisphere, the half that lies west of the prime meridian and east of the 180th meridian Alternative Hemispheres The East–West division can also be seen in a cultural and religious sense, as a division into two cultural and religious hemispheres. Some geographers prefer to split the hemispheres at 20° west and 160° east so that Africa and Europe are not split. However, other schemes have sought to divide the planet in a way that maximizes the preponde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horizon
The horizon is the apparent line that separates the surface of a celestial body from its sky when viewed from the perspective of an observer on or near the surface of the relevant body. This line divides all viewing directions based on whether it intersects the relevant body's surface or not. The ''true horizon'' is a theoretical line, which can only be observed to any degree of accuracy when it lies along a relatively smooth surface such as that of Earth's oceans. At many locations, this line is obscured by terrain, and on Earth it can also be obscured by life forms such as trees and/or human constructs such as buildings. The resulting intersection of such obstructions with the sky is called the ''visible horizon''. On Earth, when looking at a sea from a shore, the part of the sea closest to the horizon is called the offing. Pronounced, "Hor-I-zon". The true horizon surrounds the observer and it is typically assumed to be a circle, drawn on the surface of a perfectly spherica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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