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Charles Wheatstone
Sir Charles Wheatstone FRS FRSE DCL LLD (6 February 1802 – 19 October 1875), was an English scientist and inventor of many scientific breakthroughs of the Victorian era, including the English concertina, the stereoscope (a device for displaying three-dimensional images), and the Playfair cipher (an encryption technique). However, Wheatstone is best known for his contributions in the development of the Wheatstone bridge, originally invented by Samuel Hunter Christie, which is used to measure an unknown electrical resistance, and as a major figure in the development of telegraphy. Life Charles Wheatstone was born in Barnwood, Gloucestershire. His father, W. Wheatstone, was a music-seller in the town, who moved to 128 Pall Mall, London, four years later, becoming a teacher of the flute. Charles, the second son, went to a village school, near Gloucester, and afterwards to several institutions in London. One of them was in Kennington, and kept by a Mrs. Castlemaine, who wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samuel Laurence
Samuel Laurence (also spelled Lawrence; 1812–28 February 1884) was a British portrait painter. Life He was born at Guildford, Surrey, in 1812, and early manifested a great love for art. The first portraits which he exhibited were at the Society of British Artists in 1834, but in 1836 he sent three portraits, including that of Mrs. Somerville, to the exhibition of the Royal Academy. These were followed at the academy by portraits of the Right Hon. Thomas Erskine, 1838; Thomas Carlyle, 1841; Sir Frederick Pollock, bart., 1842 and 1847; Charles Babbage, 1845; Dr. William Whewell, 1847; James Spedding, 1860; the Rev. William Hepworth Thompson, master of Trinity, and Robert Browning, 1869; Sir Thomas Watson, bart., M.D., 1870; and the Rev. Frederick Denison Maurice, 1871. He exhibited also crayon drawings of Charles Dickens ('Sketch of Boz'), 1838; John Hullah, 1842; Professor Adam Sedgwick, 1845; the Rev. Frederick Denison Maurice, 1846; George Grote, 1849; Lord Ashburton an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert Medal (Royal Society Of Arts)
The Albert Medal of the Royal Society of Arts (RSA) was instituted in 1864 as a memorial to Prince Albert, who had been President of the Society for 18 years. It was first awarded in 1864 for "distinguished merit in promoting Arts, Manufactures and Commerce". In presenting the Medal, the Society now looks to acknowledge individuals, organizations and groups that lead progress and create positive change within contemporary society in areas that are linked closely to the Society's broad agenda. Through the Albert Medal, the Society acknowledges the creativity and innovation of those that work to tackle some of the world's intractable problems. Each year, the RSA identifies issues by asking the Society's Fellowship to suggest problems and subjects linked to the Society's programme. These proposals are reviewed and recommendations made to the Trustees and Council, who are responsible for selecting one upon which the Fellowship will be asked to nominate worthy recipients. Full li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wheatstone English Concertina
Wheatstone may refer to: * Cape Wheatstone, in Antarctica * Charles Wheatstone (1802–1875), a British scientist and inventor, eponymous for Wheatstone bridge * Cooke and Wheatstone Telegraph * Wheatstone, New Zealand, a locality in the Canterbury region * Wheatstone Glacier, in Antarctica * Wheatstone LNG * Wheatstone bridge, a measuring instrument in electricity * Wheatstone Corporation Wheatstone Corporation is an American company that produces digital and analog professional audio equipment for broadcast radio, television, and new media. Products include audio consoles, Audio over IP (AoIP) audio networking, audio processing, ..., an American manufacturing company See also * Whetstone (other) {{disambiguation, place name, surname ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Windsor, Berkshire
Windsor is a historic market town and unparished area in the Royal Borough of Windsor and Maidenhead in Berkshire, England. It is the site of Windsor Castle, one of the official residences of the British monarch. The town is situated west of Charing Cross, central London, southeast of Maidenhead, and east of the county town of Reading. It is immediately south of the River Thames, which forms its boundary with its smaller, ancient twin town of Eton. The village of Old Windsor, just over to the south, predates what is now called Windsor by around 300 years; in the past Windsor was formally referred to as New Windsor to distinguish the two. Etymology ''Windlesora'' is first mentioned in the ''Anglo-Saxon Chronicle.'' (The settlement had an earlier name but this is unknown.) The name originates from old English ''Windles-ore'' or ''winch by the riverside''.South S.R., ''The Book of Windsor'', Barracuda Books, 1977. By 1110, meetings of the Great Council, which had prev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kennington
Kennington is a district in south London, England. It is mainly within the London Borough of Lambeth, running along the boundary with the London Borough of Southwark, a boundary which can be discerned from the early medieval period between the Lambeth and St George's parishes of those boroughs respectively. It is located south of Charing Cross in Inner London and is identified as a local centre in the London Plan. It was a royal manor in the parish of St Mary, Lambeth in the county of Surrey and was the administrative centre of the parish from 1853. Proximity to central London was key to the development of the area as a residential suburb and it was incorporated into the metropolitan area of London in 1855. Kennington is the location of three significant London landmarks: the Oval cricket ground, the Imperial War Museum, and Kennington Park. Its population at the United Kingdom Census 2011 was 15,106. Kennington is served by Kennington Police Station. History Toponymy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telegraphy
Telegraphy is the long-distance transmission of messages where the sender uses symbolic codes, known to the recipient, rather than a physical exchange of an object bearing the message. Thus flag semaphore is a method of telegraphy, whereas pigeon post is not. Ancient signalling systems, although sometimes quite extensive and sophisticated as in China, were generally not capable of transmitting arbitrary text messages. Possible messages were fixed and predetermined and such systems are thus not true telegraphs. The earliest true telegraph put into widespread use was the optical telegraph of Claude Chappe, invented in the late 18th century. The system was used extensively in France, and European nations occupied by France, during the Napoleonic era. The electric telegraph started to replace the optical telegraph in the mid-19th century. It was first taken up in Britain in the form of the Cooke and Wheatstone telegraph, initially used mostly as an aid to railway signalling ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samuel Hunter Christie
Samuel Hunter Christie FRS (22 March 1784 – 24 January 1865) was a British physicist and mathematician. Life He studied mathematics at Trinity College, Cambridge, where he won the Smith's Prize and was second wrangler. He was particularly interested in magnetism, studying the Earth's magnetic field and designing improvements to the magnetic compass. Some of his magnetic research was done in collaboration with Peter Barlow. He became a Fellow of the Royal Society in 1826, delivered their Bakerian Lecture in 1833 and served as their Secretary from 1837 to 1853. In 1833 he published his 'diamond' method, the forerunner of the Wheatstone bridge, in a paper on the magnetic and electrical properties of metals, as a method for comparing the resistances of wires of different thicknesses. However, the method went unrecognised until 1843, when Charles Wheatstone proposed it, in another paper for the Royal Society, for measuring resistance in electrical circuits. Although Wheatst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Encryption
In cryptography, encryption is the process of encoding information. This process converts the original representation of the information, known as plaintext, into an alternative form known as ciphertext. Ideally, only authorized parties can decipher a ciphertext back to plaintext and access the original information. Encryption does not itself prevent interference but denies the intelligible content to a would-be interceptor. For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. It is possible to decrypt the message without possessing the key but, for a well-designed encryption scheme, considerable computational resources and skills are required. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients but not to unauthorized users. Historically, various forms of encryption have been used to aid in cryptography. Early encryption techniques were often used in mil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stereoscope
A stereoscope is a device for viewing a stereoscopic pair of separate images, depicting left-eye and right-eye views of the same scene, as a single three-dimensional image. A typical stereoscope provides each eye with a lens that makes the image seen through it appear larger and more distant and usually also shifts its apparent horizontal position, so that for a person with normal binocular depth perception the edges of the two images seemingly fuse into one "stereo window". In current practice, the images are prepared so that the scene appears to be beyond this virtual window, through which objects are sometimes allowed to protrude, but this was not always the custom. A divider or other view-limiting feature is usually provided to prevent each eye from being distracted by also seeing the image intended for the other eye. Most people can, with practice and some effort, view stereoscopic image pairs in 3D without the aid of a stereoscope, but the physiological depth cues result ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
English Concertina
The English concertina is a member of the concertina family of free-reed musical instruments. Invented in England in 1829, it was the first instrument of what would become the concertina family. It is a fully chromatic instrument, having buttons in a rectangular arrangement of four staggered rows; its buttons are unisonoric, producing the same note on both the push and pull of the bellows. It differs from other concertinas in that the scale is divided evenly between the two hands, such that playing a scale involves both hands alternately playing each note in sequence. History The invention of the instrument is credited to Sir Charles Wheatstone; his earliest patent of a like instrument was granted 19 December 1829, No 5803 in Great Britain. The English concertina was initially used for playing classical music, virtuosic solos, and chamber music. By the 1860s-1870s, the English concertina grew more popular in the music hall tradition. The evangelical Salvation Army adopted all s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victorian Era
In the history of the United Kingdom and the British Empire, the Victorian era was the period of Queen Victoria's reign, from 20 June 1837 until her death on 22 January 1901. The era followed the Georgian period and preceded the Edwardian period, and its later half overlaps with the first part of the '' Belle Époque'' era of Continental Europe. There was a strong religious drive for higher moral standards led by the nonconformist churches, such as the Methodists and the evangelical wing of the established Church of England. Ideologically, the Victorian era witnessed resistance to the rationalism that defined the Georgian period, and an increasing turn towards romanticism and even mysticism in religion, social values, and arts. This era saw a staggering amount of technological innovations that proved key to Britain's power and prosperity. Doctors started moving away from tradition and mysticism towards a science-based approach; medicine advanced thanks to the a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doctor Of Civil Law
Doctor of Civil Law (DCL; la, Legis Civilis Doctor or Juris Civilis Doctor) is a degree offered by some universities, such as the University of Oxford, instead of the more common Doctor of Laws (LLD) degrees. At Oxford, the degree is a higher doctorate usually awarded on the basis of exceptionally insightful and distinctive publications that contain significant and original contributions to the study of law or politics in general. The DCL is senior to all degrees save the Doctor of Divinity which was traditionally the highest degree bestowed by the Universities. The degree of Doctor of Canon Law was replaced by the DCL after the Reformation. The degree of Doctor of Civil Law by Diploma is customarily conferred on foreign Heads of State, as well as on the Chancellor of the University. (The British Sovereign is unable to receive university degrees, since these would theoretically place her under the jurisdiction of the Chancellor of the university. Prior to her accession, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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