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Llwyngwern Quarry
The Llwyngwern quarry (sometimes known as Glandulas quarry or Maglona quarry) was a slate quarry in Wales that opened by 1828 and continued working until about 1950. The quarry is located on the western flank of Mynydd Llwyn-gwern. History Llwyngwern was a small quarry that only briefly produced more than 2000 tons of finished slate per year. It worked a minor outcropping of slate away from the main veins quarried to the north around Corris and Aberllefenni. Early history The quarry began working no later than 1828, when Joseph Tyler was appointed the quarry manager; he was the son of the manager of Diffwys quarry in Blaenau Ffestiniog. In 1835, the quarry was owned by Simon Cook of Llwyngwern, though it closed in the 1840s. In 1853 it was re-opened by W.R. Williams of Dolgellau and was described as a well-developed quarry with a waterwheel powering the mill. In 1863, a new company, the Llwyngwern Slate Quarry Co. Ltd, was formed to work the quarry, under the ownershi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Powys
Powys ( , ) is a Principal areas of Wales, county and Preserved counties of Wales, preserved county in Wales. It borders Gwynedd, Denbighshire, and Wrexham County Borough, Wrexham to the north; the English Ceremonial counties of England, ceremonial counties of Shropshire and Herefordshire to the east; Monmouthshire, Blaenau Gwent, Merthyr Tydfil County Borough, Merthyr Tydfil, Caerphilly County Borough, Caerphilly, Rhondda Cynon Taf, and Neath Port Talbot to the south; and Carmarthenshire and Ceredigion to the west. The largest settlement is Newtown, Powys, Newtown, and the administrative centre is Llandrindod Wells. Powys is the largest and most sparsely populated county in Wales, having an area of and a population of in . While largely rural, its towns include Welshpool in the north-east, Newtown in the north-centre, Llandrindod Wells in the south-centre, Brecon in the south, Ystradgynlais in the far south-west, and Machynlleth in the far west. The Welsh language can be spok ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corris Railway
The Corris Railway () is a narrow gauge railway based in Corris on the border between Merionethshire (now Gwynedd) and Montgomeryshire (now Powys) in Mid-Wales. The line opened in 1859 as a horse tramway, running from quays on the River Dyfi at Morben and Derwenlas, through the town of Machynlleth and then following the Dulas Valley north to Corris and on to Aberllefenni. Branches served the slate quarries at Corris Uchaf, Aberllefenni, the isolated quarries around Ratgoed and quarries along the length of the Dulas Valley. In 1878, the railway was rebuilt and steam locomotives were introduced. It was taken over by the Great Western Railway in 1929 and closed in 1948. A preservation society was formed in 1966, initially opening a museum at Corris. A short section of line between Corris and Maespoeth was re-opened to passengers in 2002. The railway now operates as a tourist attraction. Two new steam locomotives have been built for the railway, in 2005 and 2023. Two of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centre For Alternative Technology
The Centre for Alternative Technology (CAT) () is an ecology, eco-centre in Montgomeryshire, Powys, Wales dedicated to demonstrating and teaching sustainable development. CAT, despite its name, no longer concentrates its efforts exclusively on alternative technology, but provides information on all aspects of sustainable living. It is open to visitors, offers postgraduate degrees as well as shorter residential and one day courses, and publishes information on renewable energy, sustainable architecture, organic farming, gardening, and sustainable living. CAT also runs education programmes for schools and sells environmentally friendly items through its on-site shop, restaurant and mail order department. History CAT was founded by businessman-turned-environmentalist Gerard Morgan-Grenville, and opened in 1973 in the disused Llwyngwern quarry, Llwyngwern slate quarry near Machynlleth (once served by the narrow-gauge Corris Railway), where it occupies a seven-acre (28,000 m2) site. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Second World War
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks in World War II, Tanks and Air warfare of World War II, aircraft played major roles, enabling the strategic bombing of cities and delivery of the Atomic bombings of Hiroshima and Nagasaki, first and only nuclear weapons ever used in war. World War II is the List of wars by death toll, deadliest conflict in history, causing World War II casualties, the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Allied-occupied Germany, Germany, Allied-occupied Austria, Austria, Occupation of Japan, Japan, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Producer Gas
Producer gas is a fuel gas manufactured by blowing air and steam simultaneously through a coke or coal fire. It mainly consists of carbon monoxide (CO), hydrogen (H2), as well as substantial amounts of nitrogen (N2). The caloric value of the producer gas is low (mainly because of its high nitrogen content), and the technology is obsolete. Improvements over producer gas, also obsolete, include water gas, where the solid fuel is treated intermittently with air and steam, and, far more efficiently, synthesis gas, where the solid fuel is replaced with methane. In the US, producer gas may also be referred to by other names based on the fuel used for production, such as wood gas. Producer gas may also be referred to as suction gas, referring to the way the air was drawn into the gas generator by an internal combustion engine. Production Producer gas is generally made from coke, or other carbonaceous material such as anthracite coal. Air is passed over the red-hot carbonaceous fu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
First World War
World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting took place mainly in European theatre of World War I, Europe and the Middle Eastern theatre of World War I, Middle East, as well as in parts of African theatre of World War I, Africa and the Asian and Pacific theatre of World War I, Asia-Pacific, and in Europe was characterised by trench warfare; the widespread use of Artillery of World War I, artillery, machine guns, and Chemical weapons in World War I, chemical weapons (gas); and the introductions of Tanks in World War I, tanks and Aviation in World War I, aircraft. World War I was one of the List of wars by death toll, deadliest conflicts in history, resulting in an estimated World War I casualties, 10 million military dead and more than 20 million wounded, plus some 10 million civilian de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ropeway Conveyor
A material ropeway, ropeway conveyor (or aerial tramway in the US) is a subtype of gondola lift, from which containers for goods rather than passenger cars are suspended. Description Material ropeways are typically found around large mining concerns, and can be of considerable length. The COMILOG Cableway, which ran from Moanda in Gabon to Mbinda in the Republic of the Congo, was over in length. The Kristineberg-Boliden ropeway in Sweden had a length of . Conveyors can be powered by a wide variety of forms of energy, such as electricity, engines, or gravity (particularly in mountainous mining concerns, or where running water is available). Gravity-driven conveyors may qualify as zip-lines, as no electricity is used to operate them, instead relying on the weight of carts going down providing propulsion for empty carts going up. Double-rope (bi-cable) ropeways, have a stationary carrying rope and a separate hauling rope that controls their movement. Single-rope (mono-cable) r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Board Of Trade
The Board of Trade is a British government body concerned with commerce and industry, currently within the Department for Business and Trade. Its full title is The Lords of the Committee of the Privy Council appointed for the consideration of all matters relating to Trade and Foreign Plantations, but is commonly known as the Board of Trade, and formerly known as the Lords of Trade and Plantations or Lords of Trade, and it has been a committee of the Privy Council of the United Kingdom. The board has gone through several evolutions, beginning with extensive involvement in colonial matters in the 17th century, to powerful regulatory functions in the Victorian Era and early 20th century. It was virtually dormant in the last third of the 20th century. In 2017, it was revitalised as an advisory board headed by the International Trade Secretary who has nominally held the title of President of the Board of Trade, and who at present is the only privy counsellor of the board, the othe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cable Railway
A cable railway is a railway that uses a Wire rope, cable, rope or chain to haul trains. It is a specific type of cable transportation. The most common use for a cable railway is to move vehicles on a Grade (slope), steeply graded line that is too steep for conventional locomotives to operate on – this form of cable railway is often called an incline or inclined plane, or, in New Zealand, a jigline, or jig line. One common form of incline is the funicular – an isolated passenger railway where the cars are permanently attached to the cable.Walter Hefti: ''Schienenseilbahnen in aller Welt. Schiefe Seilebenen, Standseilbahnen, Kabelbahnen.'' Birkhäuser, Basel 1975, (in German) In other forms, the cars attach and detach to the cable at the ends of the cable railway. Some cable railways are not steeply graded - these are often used in quarries to move large numbers of wagons between the quarry to the processing plant. History The oldest extant cable railway is probably the Re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
