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Thomas Graham (chemist)
Thomas Graham (20 December 1805 – 11 September 1869) was a Scottish chemist known for his pioneering work in dialysis and the diffusion of gases. He is regarded as one of the founders of colloid chemistry. Life Graham was born in Glasgow, Scotland and was educated at the High School of Glasgow. Graham's father was a successful textile manufacturer, and wanted his son to enter into the Church of Scotland. Instead, defying his father's wishes, Graham became a student at the University of Glasgow in 1819. There he developed a strong interest in chemistry, studying under Professor Thomas Thomson, who was impressed and influenced by the young man. He left the university after receiving his MA in 1824. He later studied medicine at the University of Edinburgh and then briefly taught chemistry at the Glasgow University Portland Street Medical School. In 1828 he was elected a Fellow of the Royal Society of Edinburgh, his proposer was Edward Turner. He won the Society's Keith Med ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glasgow
Glasgow is the Cities of Scotland, most populous city in Scotland, located on the banks of the River Clyde in Strathclyde, west central Scotland. It is the List of cities in the United Kingdom, third-most-populous city in the United Kingdom and the 27th-most-populous city in Europe, and comprises Wards of Glasgow, 23 wards which represent the areas of the city within Glasgow City Council. Glasgow is a leading city in Scotland for finance, shopping, industry, culture and fashion, and was commonly referred to as the "second city of the British Empire" for much of the Victorian era, Victorian and Edwardian eras. In , it had an estimated population as a defined locality of . More than 1,000,000 people live in the Greater Glasgow contiguous urban area, while the wider Glasgow City Region is home to more than 1,800,000 people (its defined functional urban area total was almost the same in 2020), around a third of Scotland's population. The city has a population density of 3,562 p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Thomson (chemist)
Thomas Thomson (12 April 1773 – 2 August 1852) was a Scottish chemist and mineralogist whose writings contributed to the early spread of Dalton's atomic theory. His scientific accomplishments include the invention of the saccharometer and he gave silicon its current name. He served as president of the Philosophical Society of Glasgow. Thomson was the father of the botanist Thomas Thomson, and the uncle and father-in-law of the Medical Officer of Health Robert Thomson. Life and work Thomas Thomson was born in Crieff in Perthshire, on 12 April 1773 the son of Elizabeth Ewan and John Thomson. He was educated at Crieff Parish School and Stirling Burgh School. He then studied for a general degree at the University of St Andrews to study in classics, mathematics, and natural philosophy from 1787 to 1790. He had a five year break then entered University of Edinburgh to study medicine in 1795, gaining his doctorate (MD) in 1799. During this latter period he was inspired by hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molar Mass
In chemistry, the molar mass () (sometimes called molecular weight or formula weight, but see related quantities for usage) of a chemical substance ( element or compound) is defined as the ratio between the mass () and the amount of substance (, measured in moles) of any sample of the substance: . The molar mass is a bulk, not molecular, property of a substance. The molar mass is a ''weighted'' ''average'' of many instances of the element or compound, which often vary in mass due to the presence of isotopes. Most commonly, the molar mass is computed from the standard atomic weights and is thus a terrestrial average and a function of the relative abundance of the isotopes of the constituent atoms on Earth. The molecular mass (for molecular compounds) and formula mass (for non-molecular compounds, such as ionic salts) are commonly used as synonyms of molar mass, as the numerical values are identical (for all practical purposes), differing only in units ( dalton vs. g/mol o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Density
Density (volumetric mass density or specific mass) is the ratio of a substance's mass to its volume. The symbol most often used for density is ''ρ'' (the lower case Greek letter rho), although the Latin letter ''D'' (or ''d'') can also be used: \rho = \frac, where ''ρ'' is the density, ''m'' is the mass, and ''V'' is the volume. In some cases (for instance, in the United States oil and gas industry), density is loosely defined as its weight per unit volume, although this is scientifically inaccurate this quantity is more specifically called specific weight. For a pure substance, the density is equal to its mass concentration. Different materials usually have different densities, and density may be relevant to buoyancy, purity and packaging. Osmium is the densest known element at standard conditions for temperature and pressure. To simplify comparisons of density across different systems of units, it is sometimes replaced by the dimensionless quantity "relative den ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Effusion
In physics and chemistry, effusion is the process in which a gas escapes from a container through a hole of diameter considerably smaller than the mean free path of the molecules. Such a hole is often described as a ''pinhole'' and the escape of the gas is due to the pressure difference between the container and the exterior. Under these conditions, essentially all molecules which arrive at the hole continue and pass through the hole, since collisions between molecules in the region of the hole are negligible. Conversely, when the diameter is larger than the mean free path of the gas, flow obeys the Sampson flow law. In medical terminology, an effusion refers to accumulation of fluid in an anatomic space, usually without locule, loculation. Specific examples include Subdural hematoma, subdural, otitis media with effusion, mastoid, pericardial effusion, pericardial and pleural effusions. Etymology The word effusion derives from the Latin word, effundo, which means "shed", " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glasgow Cathedral
Glasgow Cathedral () is a parish church of the Church of Scotland in Glasgow, Scotland. It was the cathedral church of the Archbishop of Glasgow, and the mother church of the Archdiocese of Glasgow and the province of Glasgow, from the 12th century until the Scottish Reformation in the 16th century. It is the oldest cathedral in mainland Scotland and the oldest building in Glasgow. With St Magnus Cathedral in Orkney, they are the only medieval cathedrals in Scotland to have survived the Reformation virtually intact. The medieval Bishop's Castle stood to the west of the cathedral until 1789. Although notionally it lies within the Townhead area of the city, the Cathedral grounds and the neighboring Necropolis are considered to be their own district within the city. The cathedral is dedicated to Saint Mungo (also known as Kentigern), the patron saint of Glasgow, whose tomb lies at the centre of the building's Lower Church. The first stone cathedral was dedicated in 1136, in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gordon Square
Gordon Square is a public park square in Bloomsbury, London, England. It is part of the Bedford Estate and was designed as one of a pair with the nearby Tavistock Square. It is owned by the University of London. History and buildings The square was developed by master builder Thomas Cubitt in the 1820s, as one of a pair with Tavistock Square, which is a block away and has the same dimensions. As with most London squares the central garden was originally for the private use of the residents of the surrounding houses, but it now belongs to the University of London and is open to the public. The square is named after the second wife of the 6th Duke of Bedford, Lady Georgiana Gordon, daughter of Alexander Gordon, 4th Duke of Gordon. The university owns many of the buildings in the square and in early 2005 it submitted an application for a refurbishment of the square, including the reinstatement of railings similar to the originals. The work was completed in 2007. The west side of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chancellor Of The Exchequer
The chancellor of the exchequer, often abbreviated to chancellor, is a senior minister of the Crown within the Government of the United Kingdom, and the head of HM Treasury, His Majesty's Treasury. As one of the four Great Offices of State, the chancellor is a high-ranking member of the British Cabinet. Responsible for all economic and financial matters, the role is equivalent to that of a finance minister in other countries. The chancellor is now always second lord of the Treasury as one of at least six Lords Commissioners of the Treasury, lords commissioners of the Treasury, responsible for executing the office of the Treasurer of the Exchequer the others are the prime minister and Commons government whips. In the 18th and early 19th centuries, it was common for the prime minister also to serve as Chancellor of the Exchequer if he sat in the Commons; the last Chancellor who was simultaneously prime minister and Chancellor of the Exchequer was Stanley Baldwin in 1923. Formerl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Master Of The Mint
Master of the Mint is a title within the Royal Mint given to the most senior person responsible for its operation. It was an office in the governments of Scotland and England, and later Great Britain and then the United Kingdom, between the 16th and 19th centuries. Until 1699, the appointment was usually for life. Its holder occasionally sat in the cabinet. During the interregnum (1643–1660), the last Master of the Mint to Charles I, Sir Robert Harley, transferred his allegiance to Parliament and remained in office. After his death in 1656 Aaron Guerdon was appointed. In 1870 the role was amalgamated into the office of the Chancellor of the Exchequer, making the Chancellor, by virtue of their position, the Master of the Mint. The duty of running the mint was given to the Deputy Master of the Mint; who is now the mint's Chief Executive. Masters of the Mint in England *1331 Richard de Snowshill and Richard of Grimsby *1351–? Henry de Bruselee and John Chichester Google ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Swedish Academy Of Sciences
The Royal Swedish Academy of Sciences () is one of the Swedish Royal Academies, royal academies of Sweden. Founded on 2 June 1739, it is an independent, non-governmental scientific organization that takes special responsibility for promoting natural sciences and mathematics and strengthening their influence in society, whilst endeavouring to promote the exchange of ideas between various disciplines. The goals of the academy are: * To be a forum where researchers meet across subject boundaries, * To offer a unique environment for research, * To provide support to younger researchers, * To reward outstanding research efforts, * To communicate internationally among scientists, * To advance the case for science within society and to influence research policy priorities * To stimulate interest in mathematics and science in school, and * To disseminate and popularize scientific information in various forms. Every year, the academy awards the Nobel Prizes in Nobel Prize in Physics, phy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Society Of London
The Chemical Society was a scientific society formed in 1841 (then named the Chemical Society of London) by 77 scientists as a result of increased interest in scientific matters. Chemist Robert Warington was the driving force behind its creation. The London Chemical Society 1824 The early days of the 1824 Chemical Society came with a rough start. Among the artisan class, the magazine ''The Chemist'', written by John Knight and Henry Lacey, had started to get some traction. Some argue that they falsely mentioned that the 1824 Chemical Society was attempting to gather an educated upper and middle-class group of chemists and philosophers. Because of this, the writers of ''The Chemist'' maintained a very practical and anti-theoretical bias, as they had lashed out at the time wasted by academic chemists researching atomic weight distributions. To find a means of how this society should be better set up and run, correspondents and proponents of ''The Chemist'' advised that membership i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of London
The University of London (UoL; abbreviated as Lond or more rarely Londin in Post-nominal letters, post-nominals) is a collegiate university, federal Public university, public research university located in London, England, United Kingdom. The university was established by royal charter in 1836 as a degree-awarding examination board for students holding certificates from University College London, King's College London and "other such institutions, corporate or unincorporated, as shall be established for the purpose of Education, whether within the Metropolis or elsewhere within our United Kingdom". It is one of three institutions to have claimed the title of the Third-oldest university in England debate, third-oldest university in England. It moved to a federal structure with constituent colleges in 1900. It is now incorporated by its fourth (1863) royal charter and governed by the University of London Act 2018 (c. iii). The university consists of Member institutions of the Un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
