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Schiehallion
Schiehallion (; gd, Sìth Chailleann, ) is a prominent cone-shaped mountain in the Breadalbane region of the Scottish Highlands, in the county of Perthshire. It rises to and is classed as a Munro. Schiehallion has a rich botanical life, interesting archaeology, and a unique place in scientific history for an 18th-century experiment in " weighing the Earth". It is near the centre of mainland Scotland. The mountain's popularity amongst walkers led to erosion on its footpath and extensive repairs were undertaken in 2001. Name The name ''Schiehallion'' comes from Scottish Gaelic ''Sìth Chailleann'', meaning "fairy hill of Caledonia" or "-of the Caledonians". Maskelyne (1772), however, reported a translation of "constant storm", and a Lowland Scots name of "Maiden Pap". Location Schiehallion lies between Loch Tay, Loch Rannoch and Loch Tummel, about to the west-north-west of Aberfeldy in Perthshire. The mountain, with an elevation of , is isolated from other peaks and has a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schiehallion Experiment
The Schiehallion experiment was an 18th-century experiment to determine the mean density of the Earth. Funded by a grant from the Royal Society, it was conducted in the summer of 1774 around the Scottish mountain of Schiehallion, Perthshire. The experiment involved measuring the tiny deflection of the vertical due to the gravitational attraction of a nearby mountain. Schiehallion was considered the ideal location after a search for candidate mountains, thanks to its isolation and almost symmetrical shape. The experiment had previously been considered, but rejected, by Isaac Newton as a practical demonstration of his theory of gravitation; however, a team of scientists, notably Nevil Maskelyne, the Astronomer Royal, was convinced that the effect would be detectable and undertook to conduct the experiment. The deflection angle depended on the relative densities and volumes of the Earth and the mountain: if the density and volume of Schiehallion could be ascertained, then ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earth Mass
An Earth mass (denoted as M_\mathrm or M_\oplus, where ⊕ is the standard astronomical symbol for Earth), is a unit of mass equal to the mass of the planet Earth. The current best estimate for the mass of Earth is , with a relative uncertainty of 10−4.The cited value is the recommended value published by the International Astronomical Union in 2009 (se2016 "Selected Astronomical Constants"in ). It is equivalent to an average density of . Using the nearest metric prefix, the Earth mass is approximately six ronnagrams, or 6.0 Rg. The Earth mass is a standard unit of mass in astronomy that is used to indicate the masses of other planets, including rocky terrestrial planets and exoplanets. One Solar mass is close to Earth masses. The Earth mass excludes the mass of the Moon. The mass of the Moon is about 1.2% of that of the Earth, so that the mass of the Earth+Moon system is close to . Most of the mass is accounted for by iron and oxygen (c. 32% each), magnesium and sili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geographical Centre Of Scotland
There is some debate as to the location of the geographical centre of Scotland. This is due to different methods of calculating the centre, and whether surrounding islands are included. Centre of gravity method In 2002, the Ordnance Survey calculated the centre using a mathematical ''centre of gravity'' method. This is the mathematical equivalent of calculating the point at which a cardboard cut-out of Scotland could be perfectly balanced on the tip of a pin. It becomes complicated when the islands are included so one simplification is just to ignore them. The Ordnance Survey calculated that the centre of Mainland Scotland is at (). The point is 5 km east of the mountain of Schiehallion, which is sometimes claimed to be at the centre of Scotland. Including islands The centre point including islands was found to be at (). This is on a hillside near Loch Garry, between Dalwhinnie and Blair Atholl and close to the A9 road and the railway line. Nearby, it is claimed that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caledonia
Caledonia (; ) was the Latin name used by the Roman Empire to refer to the part of Great Britain () that lies north of the River Forth, which includes most of the land area of Scotland. Today, it is used as a romantic or poetic name for all of Scotland. During the Roman Empire's occupation of Scotland, the area they called Caledonia was physically separated from the rest of the island by the Antonine Wall. The Romans several times invaded and occupied it, but unlike the rest of the island, it remained outside the administration of Roman Britain. Latin historians, including Tacitus and Cassius Dio, referred to the territory north of the River Forth as "Caledonia", and described it as inhabited by the Maeatae and the Caledonians (). Other ancient authors, however, used the adjective "Caledonian" more generally to describe anything pertaining to inland or northern Britain. The name is probably derived from a word in one of the Gallo-Brittonic languages. History Etymolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centre Of Scotland
There is some debate as to the location of the geographical centre of Scotland. This is due to different methods of calculating the centre, and whether surrounding islands are included. Centre of gravity method In 2002, the Ordnance Survey calculated the centre using a mathematical ''centre of gravity'' method. This is the mathematical equivalent of calculating the point at which a cardboard cut-out of Scotland could be perfectly balanced on the tip of a pin. It becomes complicated when the islands are included so one simplification is just to ignore them. The Ordnance Survey calculated that the centre of Mainland Scotland is at (). The point is 5 km east of the mountain of Schiehallion, which is sometimes claimed to be at the centre of Scotland. Including islands The centre point including islands was found to be at (). This is on a hillside near Loch Garry, between Dalwhinnie and Blair Atholl and close to the A9 road and the railway line. Nearby, it is claimed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Munro
A Munro () is defined as a mountain in Scotland with a height over , and which is on the Scottish Mountaineering Club (SMC) official list of Munros; there is no explicit topographical prominence requirement. The best known Munro is Ben Nevis (Beinn Nibheis), the highest mountain in the British Isles at . Munros are named after Sir Hugh Munro, 4th Baronet (1856–1919), who produced the first list of such hills, known as ''Munro's Tables'', in 1891. Also included were what Munro considered lesser peaks, now known as Munro Tops, which are also over 3,000 feet but are lower than the nearby primary mountain. The publication of the original list is usually considered to be the epoch event of modern peak bagging. The list has been the subject of subsequent variation and as of 10 December 2020, the Scottish Mountaineering Club has listed 282 Munros and 226 Munro Tops. "Munro bagging" is the activity of climbing all the listed Munros. As of 31 December 2021, 7,098 people had repo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perthshire
Perthshire ( locally: ; gd, Siorrachd Pheairt), officially the County of Perth, is a historic county and registration county in central Scotland. Geographically it extends from Strathmore in the east, to the Pass of Drumochter in the north, Rannoch Moor and Ben Lui in the west, and Aberfoyle in the south; it borders the counties of Inverness-shire and Aberdeenshire to the north, Angus to the east, Fife, Kinross-shire, Clackmannanshire, Stirlingshire and Dunbartonshire to the south and Argyllshire to the west. It was a local government county from 1890 to 1930. Perthshire is known as the "big county", or "the Shire", due to its roundness and status as the fourth largest historic county in Scotland. It has a wide variety of landscapes, from the rich agricultural straths in the east, to the high mountains of the southern Highlands. Administrative history Perthshire was an administrative county between 1890 and 1975, governed by a county council. Initially, Perths ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aberfeldy, Scotland
Aberfeldy ( gd, Obar Pheallaidh) is a burgh in Perth and Kinross, Scotland, on the River Tay. A small market town, Aberfeldy is located in Highland Perthshire. It was mentioned by Robert Burns in the poem ''The Birks Of Aberfeldy''. Etymology Aberfeldy means 'mouth of the Peallaidh'. The first element of the name is the Pictish word ''aber'' 'river mouth'. The river-name perhaps incorporates the name of a water-sprite known as Peallaidh, which in Gaelic means 'shaggy'. Aberfeldy is recorded in 1526 as ''Abrefrally'' and in 1552 as ''Abirfeldy''. History Beyond its association with Burns, who mentioned Aberfeldy in his poem ''The Birks of Aberfeldy'', the town is known for Wade's Bridge, built in 1733 and designed by architect William Adam, father of Robert Adam. General George Wade considered this bridge to be his greatest accomplishment. Aberfeldy is also mentioned in the traditional "Loch Tay Boat Song". While working in the 1880s as a hired farmhand for Robert Menzies o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marilyn (hill)
This is a list of Marilyn hills and mountains in the United Kingdom, Isle of Man and Ireland by height. Marilyns are defined as peaks with a prominence of or more, regardless of height or any other merit (e.g. topographic isolation, as used in Munros). Thus, Marilyns can be mountains, with a height above , or relatively small hills. there were 2,011 recorded Marilyns. Definition The Marilyn classification was created by Alan Dawson in his 1992 book ''The Relative Hills of Britain''. The name Marilyn was coined by Dawson as a punning contrast to the '' Munro'' classification of Scottish mountains above , but which has no explicit prominence threshold, being homophonous with (Marilyn) '' Monroe''. The list of Marilyns was extended to Ireland by Clem Clements. Marilyn was the first of several subsequent British Isles classifications that rely solely on prominence, including the P600s, the HuMPs, and the TuMPs. Topographic prominence is a more difficult to estimate than ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loch Rannoch
Loch Rannoch (Scottish Gaelic: ''Loch Raineach'') is a freshwater loch in Perth and Kinross, Scotland. It is over long in a west–east direction with an average width of about , and is deepest at its eastern end, reaching a depth of . Tom Weir. ''The Scottish Lochs''. pp. 69-75. Published by Constable and Company, 1980. The River Tummel begins at its eastern end, where the small village of Kinloch Rannoch can be found, whilst the wild expanse of Rannoch Moor extends to the west of the loch. The area surrounding Loch Rannoch, along with Rannoch Moor itself, was formerly part of the native Caledonian Forest that stretched across much of Northern Scotland. Native forest is now largely absent from much of the area, due partly to logging, and partly to the climate becoming wetter, and Loch Rannoch is now largely surrounded by commercial forestry and open hillsides,Ordnance Survey. ''Landranger'' 1:50000 Sheet 42. Glen Garry and Loch Rannoch. although a small area remains at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scotland
Scotland (, ) is a country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a border with England to the southeast and is otherwise surrounded by the Atlantic Ocean to the north and west, the North Sea to the northeast and east, and the Irish Sea to the south. It also contains more than 790 islands, principally in the archipelagos of the Hebrides and the Northern Isles. Most of the population, including the capital Edinburgh, is concentrated in the Central Belt—the plain between the Scottish Highlands and the Southern Uplands—in the Scottish Lowlands. Scotland is divided into 32 administrative subdivisions or local authorities, known as council areas. Glasgow City is the largest council area in terms of population, with Highland being the largest in terms of area. Limited self-governing power, covering matters such as education, social services and roads and transportation, is devolved from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loch Tummel
Loch Tummel (Scottish Gaelic: Loch Teimheil) is a long, narrow loch, northwest of Pitlochry in the council area of Perth and Kinross, Scotland. It is fed and drained by the River Tummel, which flows into the River Tay about south-east of the Clunie Dam at the loch's eastern end.Ordnance Survey. ''Explorer'' Map 1:25000. Sheet OL49, Pitlochry & Loch Tummel. The loch is traversed by roads to both north and south. Along the northern side the road is numbered as the B8019, and runs from the Pass of Killiecrankie on the A9 in the east to Tummel Bridge at the head of the loch. The road on the southern side is unclassified, and meets the A9 further south, near to Pitlochry. The loch gives its name to the Loch Tummel National Scenic Area (NSA), one of 40 such areas in Scotland, which are defined so as to identify areas of exceptional scenery and to ensure its protection by restricting certain forms of development. The Loch Tummel Lyon NSA covers , all of which lies within Perth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
