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Adair Crawford
Adair Crawford Royal Society#Fellows, FRS FRSE (174829 July 1795), a chemist and physician, was a pioneer in the development of calorimetry, calorimetric methods for measuring the specific heat capacity of substances and the heat of chemical reactions. In his influential 1779 book "''Experiments and Observations on Animal Heat''", Crawford presented new experiments proving that respiratory gas exchange in animals is a combustion (two years after Antoine Lavoisier's influential "''On combustion in general''"). Crawford also was involved in the discovery of the element strontium. Life Adair Crawford was born in Crumlin, Belfast, the son of Rev Thomas Crawford. He studied medicine at University of Glasgow, Glasgow and University of Edinburgh, Edinburgh universities. He qualified MA in 1770 and then worked at St George's Hospital in London before qualifying MD in 1780. He was Professor of Chemistry at the Royal Military Academy, Woolwich, London, and physician at St Thomas' Hospi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crawford Adair Equipment
Crawford may refer to: Places Canada * Crawford Bay Airport, British Columbia * Crawford Lake Conservation Area, Ontario United Kingdom * Crawford, Lancashire, a small village near Rainford, Merseyside, England * Crawford, South Lanarkshire, a village in Scotland ** Crawford Castle, a medieval fortification * Crawford Castle, an iron-age fortification, at Spetisbury, Dorset, England * Crawford Priory, a country house about 2 miles south west of Cupar, Fife, Scotland United States * Crawford, Alabama (other), several places * Crawford, Colorado * Crawford, Florida * Crawford, Georgia * Crawford, Maine * Crawford, Mississippi * Crawford, Missouri * Crawford, Nebraska * Crawford, New York * Crawford, Ohio * Crawford, Oklahoma * Crawford, Texas * Crawford Notch, a mountain pass in New Hampshire * Crawford County (other), several counties * Crawford Township (other), several townships Elsewhere * Crawford crater, Australia * Crawford, Cape Town, a suburb of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Society Of London
The Royal Society, formally The Royal Society of London for Improving Natural Knowledge, is a learned society and the United Kingdom's national academy of sciences. The society fulfils a number of roles: promoting science and its benefits, recognising excellence in science, supporting outstanding science, providing scientific advice for policy, education and public engagement and fostering international and global co-operation. Founded on 28 November 1660, it was granted a royal charter by King Charles II as The Royal Society and is the oldest continuously existing scientific academy in the world. The society is governed by its Council, which is chaired by the Society's President, according to a set of statutes and standing orders. The members of Council and the President are elected from and by its Fellows, the basic members of the society, who are themselves elected by existing Fellows. , there are about 1,700 fellows, allowed to use the postnominal title FRS (Fellow of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulster Scots People
The Ulster Scots ( Ulster-Scots: ''Ulstèr-Scotch''; ga, Albanaigh Ultach), also called Ulster Scots people (''Ulstèr-Scotch fowk'') or (in North America) Scotch-Irish (''Scotch-Airisch''), are an ethnic group in Ireland, who speak an Ulster Scots dialect of the Scots language, a West Germanic language, and share a common history, culture and ancestry. As an ethnicity, they diverged from largely the same ancestors as those of modern English people, and Lowland Scots people, native to Northern England, and Lowland Scotland, respectively. Found mostly in the province of Ulster, and to a lesser extent in the rest of Ireland, their ancestors were Protestant, mainly Presbyterian, settlers who migrated from the Scottish Lowlands and Northern England during the Plantation of Ulster. The largest numbers came from Dumfries and Galloway, Lanarkshire, Renfrewshire, Ayrshire, Scottish Borders, Northumberland, Cumbria, Yorkshire, and to a much lesser extent, from the Scottish Highlands. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discoverers Of Chemical Elements
Discovery is the act of detecting something new, or something previously unrecognized as meaningful. With reference to sciences and Discipline (academia), academic disciplines, discovery is the observation of new Phenomenon, phenomena, new actions, or new events and providing new reasoning to explain the knowledge gathered through such observations with previously acquired knowledge from abstract thought and everyday experiences. A discovery may sometimes be based on earlier discoveries, collaborations, or ideas. Some discoveries represent a radical breakthrough in knowledge or technology. New discoveries are acquired through various senses and are usually assimilated, merging with pre-existing knowledge and action (philosophy), actions. Questioning is a major form of human thought and interpersonal communication, and plays a key role in discovery. Discoveries are often made due to questions. Some discoveries lead to the invention of objects, processes, or techniques. A discover ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Chemists
British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territories, and Crown Dependencies. ** Britishness, the British identity and common culture * British English, the English language as spoken and written in the United Kingdom or, more broadly, throughout the British Isles * Celtic Britons, an ancient ethno-linguistic group * Brittonic languages, a branch of the Insular Celtic language family (formerly called British) ** Common Brittonic, an ancient language Other uses *''Brit(ish)'', a 2018 memoir by Afua Hirsch *People or things associated with: ** Great Britain, an island ** United Kingdom, a sovereign state ** Kingdom of Great Britain (1707–1800) ** United Kingdom of Great Britain and Ireland (1801–1922) See also * Terminology of the British Isles * Alternative names for the British * English (other) * Britannic (other) * British Isles * Brit (other) * Briton (d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1795 Deaths
Events January–June * January – Central England records its coldest ever month, in the CET records dating back to 1659. * January 14 – The University of North Carolina opens to students at Chapel Hill, becoming the first state university in the United States. * January 16 – War of the First Coalition: Flanders campaign: The French occupy Utrecht, Netherlands. * January 18 – Batavian Revolution in Amsterdam: William V, Prince of Orange, Stadtholder of the Dutch Republic (Republic of the Seven United Netherlands), flees the country. * January 19 – The Batavian Republic is proclaimed in Amsterdam, ending the Dutch Republic (Republic of the Seven United Netherlands). * January 20 – French troops enter Amsterdam. * January 23 – Flanders campaign: Capture of the Dutch fleet at Den Helder: The Dutch fleet, frozen in Zuiderzee, is captured by the French 8th Hussars. * February 7 – The Eleventh Amendment to the United S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1748 Births
Events January–March * January 12 – Ahmad Shah Durrani captures Lahore. * January 27 – A fire at the prison and barracks at Kinsale, in Ireland, kills 54 of the prisoners of war housed there. An estimated 500 prisoners are safely conducted to another prison."Fires, Great", in ''The Insurance Cyclopeadia: Being an Historical Treasury of Events and Circumstances Connected with the Origin and Progress of Insurance'', Cornelius Walford, ed. (C. and E. Layton, 1876) p51 * February 7 – The San Gabriel mission project begins with the founding of the first Roman Catholic missions further northward in the Viceroyalty of New Spain, in what is now central Texas. On orders of the Viceroy, Juan Francisco de Güemes, Friar Mariano Marti establish the San Francisco Xavier mission at a location on the San Gabriel River in what is now Milam County. The mission, located northeast of the future site of Austin, Texas, is attacked by 60 Apache Indians on May ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Humphry Davy
Sir Humphry Davy, 1st Baronet, (17 December 177829 May 1829) was a British chemist and inventor who invented the Davy lamp and a very early form of arc lamp. He is also remembered for isolating, by using electricity, several elements for the first time: potassium and sodium in 1807 and calcium, strontium, barium, magnesium and boron the following year, as well as for discovering the elemental nature of chlorine and iodine. Davy also studied the forces involved in these separations, inventing the new field of electrochemistry. Davy is also credited to have been the first to discover clathrate hydrates in his lab. In 1799 he experimented with nitrous oxide and was astonished at how it made him laugh, so he nicknamed it "laughing gas" and wrote about its potential anaesthetic properties in relieving pain during surgery. Davy was a baronet, President of the Royal Society (PRS), Member of the Royal Irish Academy (MRIA), Fellow of the Geological Society (FGS), and a member ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barium
Barium is a chemical element with the symbol Ba and atomic number 56. It is the fifth element in group 2 and is a soft, silvery alkaline earth metal. Because of its high chemical reactivity, barium is never found in nature as a free element. The most common minerals of barium are baryte ( barium sulfate, BaSO4) and witherite (barium carbonate, BaCO3). The name ''barium'' originates from the alchemical derivative "baryta", from Greek (), meaning 'heavy'. ''Baric'' is the adjectival form of barium. Barium was identified as a new element in 1774, but not reduced to a metal until 1808 with the advent of electrolysis. Barium has few industrial applications. Historically, it was used as a getter for vacuum tubes and in oxide form as the emissive coating on indirectly heated cathodes. It is a component of YBCO (high-temperature superconductors) and electroceramics, and is added to steel and cast iron to reduce the size of carbon grains within the microstructure. Barium compounds ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strontianite
Strontianite ( Sr C O3) is an important raw material for the extraction of strontium. It is a rare carbonate mineral and one of only a few strontium minerals. It is a member of the aragonite group. Aragonite group members: aragonite (CaCO3), witherite (BaCO3), strontianite (SrCO3), cerussite (PbCO3) The ideal formula of strontianite is SrCO3, with molar mass 147.63 g, but calcium (Ca) can substitute for up to 27% of the strontium (Sr) cations, and barium (Ba) up to 3.3%. The mineral was named in 1791 for the locality, Strontian, Argyllshire, Scotland, where the element strontium had been discovered the previous year. Although good mineral specimens of strontianite are rare, strontium is a fairly common element, with abundance in the Earth's crust of 370 parts per million by weight, 87 parts per million by moles, much more common than copper with only 60 parts per million by weight, 19 by moles. Strontium is never found free in nature. The principal strontium ores are c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Cruickshank (chemist)
William Cruickshank (born circa 1740 or 1750, died 1810 or 1811) was a Scottish military surgeon and chemist, and professor of chemistry at the Royal Military Academy, Woolwich. William Cruickshank was awarded a diploma by the Royal College of Surgeons of England on 5 October 1780. In March 1788 he became assistant to Adair Crawford at the Royal Military Academy, Woolwich, at a salary of £30 a year. On 24 June 1802, he became a Fellow of the Royal Society (FRS). Discoveries and inventions He identified carbon monoxide as a compound containing carbon and oxygen in 1800. In 1800 he also used chlorine to purify water. He also discovered the chloralkali process. Strontium Some authors credit Cruickshank with first suspecting an unknown substance in a Scottish mineral, strontianite, found near Strontian, in Argyleshire. Other authors name Adair Crawford for the discovery of this new earth, due to the mineral's property of imparting a redding color to a flame.A Handbook to a Col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hampshire
Hampshire (, ; abbreviated to Hants) is a ceremonial county, ceremonial and non-metropolitan county, non-metropolitan counties of England, county in western South East England on the coast of the English Channel. Home to two major English cities on its south coast, Southampton and Portsmouth, Hampshire is the 9th-most populous county in England. The county town of Hampshire is Winchester, located in the north of the county. The county is bordered by Dorset to the south-west, Wiltshire to the north-west, Berkshire to the north, Surrey to the north-east, and West Sussex to the south east. The county is geographically diverse, with upland rising to and mostly south-flowing rivers. There are areas of downland and marsh, and two national parks: the New Forest National Park, New Forest and part of the South Downs National Park, South Downs, which together cover 45 per cent of Hampshire. Settled about 14,000 years ago, Hampshire's recorded history dates to Roman Britain, when its chi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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