|
Bristol Diamonds
Bristol Diamonds are quartz crystals found in geodes and geological rock formations which occur in dolomitic conglomerate in the Avon Gorge in Bristol, England. Their origin lies in geological processes of the Triassic period, about 250 to 200 million years ago. The Bristol Diamonds became popular novelties for visitors to the spa at Hotwells, Bristol, during the eighteenth and nineteenth centuries. Diarist John Evelyn and travel writer Celia Fiennes were amongst those who described them. In popular culture they became a synonym for something bright but worthless. Origin Dolomitic Conglomerate formed during the Triassic period (about 250 to 200 million years ago) in the Bristol Avon Gorge as a result of clays mingling with rock debris scree which had formed against the Carboniferous limestone cliffs of the gorge. The geodes containing the Bristol Diamonds are frequently found in this conglomerate, in the areas of Bridge Valley Road, Leigh Woods, Sea Mills and St Vincent's Rock ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silicon Dioxide
Silicon dioxide, also known as silica, is an oxide of silicon with the chemical formula , most commonly found in nature as quartz and in various living organisms. In many parts of the world, silica is the major constituent of sand. Silica is one of the most complex and most abundant families of materials, existing as a compound of several minerals and as a synthetic product. Notable examples include fused quartz, fumed silica, silica gel, opal and aerogels. It is used in structural materials, microelectronics (as an electrical insulator), and as components in the food and pharmaceutical industries. Structure In the majority of silicates, the silicon atom shows tetrahedral coordination, with four oxygen atoms surrounding a central Si atomsee 3-D Unit Cell. Thus, SiO2 forms 3-dimensional network solids in which each silicon atom is covalently bonded in a tetrahedral manner to 4 oxygen atoms. In contrast, CO2 is a linear molecule. The starkly different structures of the dioxid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carboniferous Limestone
Carboniferous Limestone is a collective term for the succession of limestones occurring widely throughout Great Britain and Ireland that were deposited during the Dinantian Epoch of the Carboniferous Period. These rocks formed between 363 and 325 million years ago. Within England and Wales, the entire limestone succession, which includes subordinate mudstones and some thin sandstones, is known as the Carboniferous Limestone Supergroup. Depositional basins Within Great Britain the suite of rocks known traditionally as the Carboniferous Limestone Series was deposited as marine sediments in three distinct ‘provinces’ separated by contemporary landmasses. One of these landmasses was the Wales-London-Brabant Massif, an east–west aligned belt of land stretching through central Wales and the English Midlands to East Anglia and on into Belgium. The limestones deposited to its south form a distinct South Wales-Mendip province which extends from Pembrokeshire in the west through ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Souvenir
A souvenir (), memento, keepsake, or token of remembrance is an object a person acquires for the memories the owner associates with it. A souvenir can be any object that can be collected or purchased and transported home by the traveler as a memento of a visit. The object itself may have intrinsic value, or be a symbol of experience. Without the owner's input, the symbolic meaning is lost and cannot be articulated. As objects The tourism industry designates tourism souvenirs as commemorative merchandise associated with a location, often including geographic information and usually produced in a manner that promotes souvenir collecting. Throughout the world, the souvenir trade is an important part of the tourism industry serving a dual role, first to help improve the local economy, and second to allow visitors to take with them a memento of their visit, ultimately to encourage an opportunity for a return visit, or to promote the locale to other tourists as a form of word-o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Moore
Thomas Moore (28 May 1779 – 25 February 1852) was an Irish writer, poet, and lyricist celebrated for his ''Irish Melodies''. Their setting of English-language verse to old Irish tunes marked the transition in popular Irish culture from Irish to English. Politically, Moore was recognised in England as a press, or " squib", writer for the aristocratic Whigs; in Ireland he was accounted a Catholic patriot. Married to a Protestant actress and hailed as "Anacreon Moore" after the classical Greek composer of drinking songs and erotic verse, Moore did not profess religious piety. Yet in the controversies that surrounded Catholic Emancipation, Moore was seen to defend the tradition of the Church in Ireland against both evangelising Protestants and uncompromising lay Catholics. Longer prose works reveal more radical sympathies. The ''Life and Death of Lord Edward Fitzgerald'' depicts the United Irish leader as a martyr in the cause of democratic reform. Complementing Maria Edgewort ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simile
A simile () is a figure of speech that directly ''compares'' two things. Similes differ from other metaphors by highlighting the similarities between two things using comparison words such as "like", "as", "so", or "than", while other metaphors create an implicit comparison (i.e. saying something "''is''" something else). This distinction is evident in the etymology of the words: simile derives from the Latin word ''similis'' ("similar, like"), while metaphor derives from the Greek word ''metapherein'' ("to transfer"). Like in the case of metaphors, the thing that is being compared is called the tenor, and the thing it is being compared to is called the vehicle. Author and lexicographer Frank J. Wilstach compiled a dictionary of similes in 1916, with a second edition in 1924. Uses In literature * "O My like a red, red rose." "A Red, Red Rose," by Robert Burns. * John Milton, ''Paradise Lost'', a Homeric simile:::As when a prowling Wolf, ::Whom hunger drives to seek new haun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Carlyle
Thomas Carlyle (4 December 17955 February 1881) was a Scottish essayist, historian and philosopher. A leading writer of the Victorian era, he exerted a profound influence on 19th-century art, literature and philosophy. Born in Ecclefechan, Dumfriesshire, Carlyle attended the University of Edinburgh where he excelled in mathematics, inventing the Carlyle circle. After finishing the arts course, he prepared to become a minister in the Burgher Church while working as a schoolmaster. He quit these and several other endeavours before settling on literature, writing for the ''Edinburgh Encyclopædia'' and working as a translator. He found initial success as a disseminator of German literature, then little-known to English readers, through his translations, his ''Life of'' ''Friedrich Schiller'' (1825), and his review essays for various journals. His first major work was a novel entitled ''Sartor Resartus'' (1833–34). After relocating to London, he became famous with his ''French Rev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clifton, Bristol
Clifton is both a suburb of Bristol, England, and the name of one of the city's thirty-five council wards. The Clifton ward also includes the areas of Cliftonwood and Hotwells. The eastern part of the suburb lies within the ward of Clifton Down. Notable places in Clifton include Clifton Suspension Bridge, Clifton Cathedral, Clifton College, The Clifton Club, Clifton High School, Bristol, Goldney Hall and Clifton Down. Clifton Clifton is an inner suburb of the English port city of Bristol. Clifton was recorded in the Domesday book as ''Clistone'', the name of the village denoting a 'hillside settlement' and referring to its position on a steep hill. Until 1898 Clifton St Andrew was a separate civil parish within the Municipal Borough of Bristol. Various sub-districts of Clifton exist, including Whiteladies Road, an important shopping district to the east, and Clifton Village, a smaller shopping area near the Avon Gorge to the west. Although the suburb has no formal boundar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goldney Hall
Goldney Hall is a self-catered hall of residence in the University of Bristol. It is one of three in the Clifton area of Bristol, England. The hall occupies part of the grounds of Goldney House, built in the 18th century and remodelled in the 1860s. The house and several garden features are listed structures, and the garden is designated Grade II* on the Register of Historic Parks and Gardens. History The Goldney family's influence in Bristol can be traced to 1637, when Thomas Goldney was sent by his father to Bristol from Chippenham in Wiltshire, to serve as an apprentice for seven years. His son born in 1664, also named Thomas, prospered as a grocer and in 1694 leased a country house in Clifton, now known as Goldney Hall. After the death of his father in 1703, Thomas Goldney II purchased a majority of the current Goldney Estate, complete with manor house, for a fee of £100 in 1705. In 1724 the earlier house was partially demolished to be replaced by a grander building, p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Topography
Topography is the study of the forms and features of land surfaces. The topography of an area may refer to the land forms and features themselves, or a description or depiction in maps. Topography is a field of geoscience and planetary science and is concerned with local detail in general, including not only relief, but also natural, artificial, and cultural features such as roads, land boundaries, and buildings. In the United States, topography often means specifically ''relief'', even though the USGS topographic maps record not just elevation contours, but also roads, populated places, structures, land boundaries, and so on. Topography in a narrow sense involves the recording of relief or terrain, the three-dimensional quality of the surface, and the identification of specific landforms; this is also known as geomorphometry. In modern usage, this involves generation of elevation data in digital form (DEM). It is often considered to include the graphic representation of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Camden
William Camden (2 May 1551 – 9 November 1623) was an English antiquarian, historian, topographer, and herald, best known as author of ''Britannia'', the first chorographical survey of the islands of Great Britain and Ireland, and the ''Annales'', the first detailed historical account of the reign of Elizabeth I of England. Early years Camden was born in London. His father Sampson Camden was a member of The Worshipful Company of Painter-Stainers. He attended Christ's Hospital and St Paul's School, and in 1566 entered Oxford (Magdalen College, Broadgates Hall, and finally Christ Church). At Christ Church, he became acquainted with Philip Sidney, who encouraged Camden's antiquarian interests. He returned to London in 1571 without a degree. In 1575, he became Usher of Westminster School, a position that gave him the freedom to travel and pursue his antiquarian researches during school vacations. ''Britannia'' In 1577, with the encouragement of Abraham Ortelius, Camden bega ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crystal
A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macroscopic single crystals are usually identifiable by their geometrical shape, consisting of flat faces with specific, characteristic orientations. The scientific study of crystals and crystal formation is known as crystallography. The process of crystal formation via mechanisms of crystal growth is called crystallization or solidification. The word ''crystal'' derives from the Ancient Greek word (), meaning both "ice" and "rock crystal", from (), "icy cold, frost". Examples of large crystals include snowflakes, diamonds, and table salt. Most inorganic solids are not crystals but polycrystals, i.e. many microscopic crystals fused together into a single solid. Polycrystals include most metals, rocks, ceramics, and ice. A third category of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anhydrite
Anhydrite, or anhydrous calcium sulfate, is a mineral with the chemical formula CaSO4. It is in the orthorhombic crystal system, with three directions of perfect cleavage parallel to the three planes of symmetry. It is not isomorphous with the orthorhombic barium ( baryte) and strontium ( celestine) sulfates, as might be expected from the chemical formulas. Distinctly developed crystals are somewhat rare, the mineral usually presenting the form of cleavage masses. The Mohs hardness is 3.5, and the specific gravity is 2.9. The color is white, sometimes greyish, bluish, or purple. On the best developed of the three cleavages, the lustre is pearly; on other surfaces it is glassy. When exposed to water, anhydrite readily transforms to the more commonly occurring gypsum, (CaSO4·2H2O) by the absorption of water. This transformation is reversible, with gypsum or calcium sulfate hemihydrate forming anhydrite by heating to around under normal atmospheric conditions. Anhydrite is comm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Clifton, Bristol")
