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Kyanised
John Howard Kyan (27 November 1774 – 5 January 1850) was the inventor of the 'kyanising' process for preserving wood. He was the son of John Howard Kyan of Mount Howard and Ballymurtagh, County Wexford, and was born in Dublin on 27 November 1774. His father owned valuable copper mines in Wicklow (now worked by the Wicklow Copper Mines Company) and, for some time worked them himself. The son was educated to take part in the management of the mines, but soon after he entered the company its fortunes declined, and in 1804 his father died almost penniless. History of kyanising Development For a time Kyan was employed at some vinegar works at Newcastle upon Tyne, but subsequently removed to London, to Greaves's vinegar brewery in Old Street Road. The decay of the timber supports in his father's copper mines had already directed his attention to the question of preserving wood, and as early as 1812 he began experiments with a view to discovering a method of preventing the decay. E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wood Preservation
Wood preservation refers to any method or process, or even technique, used to protect the wood and extend its service life. Most wood species are susceptible to both biological (''biotic'') and non-biological (''abiotic'') factors that cause decay and/or deterioration. Only a limited number of wood species possess natural durability, and even those may not be suitable for all environments. In general, wood benefits from appropriate preservation measures. In addition to structural design considerations, a variety of chemical preservatives and treatment processes — commonly known as timber treatment, lumber treatment, pressure treatment or modification treatment — are used to enhance the durability of wood and wood-based products, including engineered wood. These treatments may involve physical, chemical, thermal, and/or biological methodology aimed at protecting wood from degradation. They increase its resistance to biological agents such as fungi, termites, and insects, as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxford
Oxford () is a City status in the United Kingdom, cathedral city and non-metropolitan district in Oxfordshire, England, of which it is the county town. The city is home to the University of Oxford, the List of oldest universities in continuous operation, oldest university in the English-speaking world; it has buildings in every style of Architecture of England, English architecture since late History of Anglo-Saxon England, Anglo-Saxon. Oxford's industries include motor manufacturing, education, publishing, science, and information technologies. Founded in the 8th century, it was granted city status in 1542. The city is located at the confluence of the rivers Thames (locally known as the Isis) and River Cherwell, Cherwell. It had a population of in . It is north-west of London, south-east of Birmingham and north-east of Bristol. History The history of Oxford in England dates back to its original settlement in the History of Anglo-Saxon England, Saxon period. The name � ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1850 Deaths
Events January–March * January 29 – Henry Clay introduces the Compromise of 1850 to the United States Congress. * January 31 – The University of Rochester is founded in Rochester, New York. * January – Sacramento floods. * February 28 – The University of Utah opens in Salt Lake City. * March 5 – The Britannia Bridge opens over the Menai Strait in Wales. * March 7 – United States Senator Daniel Webster gives his "Seventh of March" speech, in which he endorses the Compromise of 1850, in order to prevent a possible civil war. * March 16 – Nathaniel Hawthorne's historical novel '' The Scarlet Letter'' is published in Boston, Massachusetts. * March 19 – American Express is founded by Henry Wells and William Fargo. * March 31 – The paddle steamer , bound from Cork to London, is wrecked in the English Channel with the loss of all 250 on board. April–June * April 4 – Los Angeles is incorporated as a cit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1774 Births
Events January–March * January 21 – Mustafa III, Sultan of the Ottoman Empire, dies and is succeeded by his brother Abdul Hamid I. * January 27 ** An angry crowd in Boston, Massachusetts seizes, tars, and feathers British customs collector and Loyalist John Malcolm, for striking a boy and a shoemaker, George Hewes, with his cane. ** British industrialist John Wilkinson patents a method for boring cannon from the solid, subsequently utilised for accurate boring of steam engine cylinders. * February 3 – The Privy Council of Great Britain, as advisors to King George III, votes for the King's abolition of free land grants of North American lands. Henceforward, land is to be sold at auction to the highest bidder. * February 6 – The Parlement of Paris votes a sentence of civil degradation, depriving Pierre Beaumarchais of all rights and duties of citizenship. * February 7 – The volunteer fire company of Trenton, New Jersey, predecessor to the paid Trenton Fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London Electrical Society
The London Electrical Society was established in 1837 to enable amateur electricians to meet and share their interests in "experimental investigation of Electrical Science in all its various branches". Although it initially flourished the society soon showed weaknesses in its organisation and ways of working. After a period of considerable financial difficulty it closed in 1845. Rise and fall Initially called "The Electrical Society of London", The London Electrical Society was founded at a meeting held on 16 May 1837 at Edward M Clarke's "Laboratory of Science" in Lowther Arcade, near the Strand. The idea for the Society had arisen from discussions during a course of lectures on electricity delivered by William Sturgeon at the same venue. He was assisted in establishing the Society by operative chemist William Leithead; John Peter Gassiot, an amateur scientist with a particular interest in electricity; and Charles Vincent Walker, an electrical engineer. The London Electrical Socie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Creosote
Creosote is a category of carbonaceous chemicals formed by the distillation of various tars and pyrolysis of plant-derived material, such as wood, or fossil fuel. They are typically used as preservatives or antiseptics. Some creosote types were used historically as a treatment for components of seagoing and outdoor wood structures to prevent rot (e.g., bridgework and railroad ties, see image). Samples may be found commonly inside chimney flues, where the coal or wood burns under variable conditions, producing soot and tarry smoke. Creosotes are the principal chemicals responsible for the stability, scent, and flavor characteristic of smoked meat; the name is derived . The two main kinds recognized in industry are coal-tar creosote and wood-tar creosote. The coal-tar variety, having stronger and more toxic properties, has chiefly been used as a preservative for wood; coal-tar creosote was also formerly used as an escharotic, to burn malignant skin tissue, and in dentistry ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zinc Chloride
Zinc chloride is an Inorganic chemistry, inorganic chemical compound with the chemical formula, formula ZnCl2·''n''H2O, with ''n'' ranging from 0 to 4.5, forming water of hydration, hydrates. Zinc chloride, anhydrous and its hydrates, are colorless or white crystalline solids, and are highly Solubility, soluble in water. Five hydrates of zinc chloride are known, as well as four Polymorphism (materials science), polymorphs of anhydrous zinc chloride. All forms of zinc chloride are deliquescent. They can usually be produced by the reaction of zinc or its compounds with some form of hydrogen chloride. Anhydrous zinc compound is a Lewis acid, readily forming complexes with a variety of Lewis bases. Zinc chloride finds wide application in textile processing, flux (metallurgy), metallurgical fluxes, chemical synthesis of organic compounds, such as benzaldehyde, and processes to produce other compounds of zinc. History Zinc chloride has long been known but currently practiced industr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Burnett (physician)
Sir William Burnett, KCB, FRS (16 January 1779 – 16 February 1861) was a British physician who served as Physician-General of the Royal Navy. Early life Burnett was born in Montrose, Scotland on 16 January 1779 and attended Montrose Grammar School. He was appointed surgeon's mate on board the ''Edgar'' soon after his arrival at Edinburgh to pursue his medical studies. Later he served as assistant-surgeon in the ''Goliath'' under Sir John Jervis, and was present at St. Vincent and the siege of Cadiz. He also served with distinction at battles of the Nile and Trafalgar. Prison hospitals Between 1805 and 1810 Burnett was in charge of the hospitals for prisoners of war at Portsmouth and Forton. His diligence in his most arduous hospital duties recommended Burnett in 1810 for the office of Physician and Inspector of Hospitals to the Mediterranean Fleet. His health deteriorated and he returned to England towards the end of 1813; but in March 1814 he was able to undertake the me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whaler
A whaler or whaling ship is a specialized vessel, designed or adapted for whaling: the catching or processing of whales. Terminology The term ''whaler'' is mostly historic. A handful of nations continue with industrial whaling, and one, Japan, still dedicates a single factory ship for the industry. The vessels used by aboriginal whaling communities are much smaller and are used for various purposes over the course of the year. The ''whale catcher'' was developed during the Steam-powered vesselage , and then driven by diesel engines throughout much of the twentieth century. It was designed with a harpoon gun mounted at its bow and was fast enough to chase and catch rorquals such as the fin whale. At first, whale catchers either brought the whales they killed to a whaling station, a settlement ashore where the carcasses could be processed, or to its factory ship anchored in a sheltered bay or inlet. With the later development of the slipway at the ship's stern, whale cat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railroad Tie
A railroad tie, crosstie (American English), railway tie (Canadian English) or railway sleeper ( Australian and British English) is a rectangular support for the rails in railroad tracks. Generally laid perpendicular to the rails, ties transfer loads to the track ballast and subgrade, hold the rails upright and keep them spaced to the correct gauge. Railroad ties are traditionally made of wood, but prestressed concrete is now also widely used, especially in Europe and Asia. Steel ties are common on secondary lines in the UK; plastic composite ties are also employed, although far less than wood or concrete. As of January 2008, the approximate market share in North America for traditional and wood ties was 91.5%, the remainder being concrete, steel, azobé (red ironwood) and plastic composite. Tie spacing may depend on the type of tie, traffic loads and other requirements, for example on North American mainline railroads to on London, Midland and Scottish Railway joi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tothill Fields Bridewell
Tothill Fields Bridewell (also known as Tothill Fields Prison and Westminster Bridewell) was a prison located in the Westminster area of central London between 1618 and 1884. It was named "Bridewell" after the Bridewell Palace, which during the 16th century had become one of the City of London's most important prisons. Tothill Fields later became the Westminster House of Correction. History Like its City counterpart, the Westminster Bridewell was intended as a "house of correction" for the compulsory employment of able-bodied but indolent paupers. Built in 1618, it was enlarged in 1655, and during the reign of Queen Anne, its regime was extended to cover the incarceration of criminals. In 1834 the original Bridewell was replaced by a larger prison, on a different site, in area, south of Victoria Street and close to Vauxhall Bridge Road. The new prison, designed by Robert Abraham and costing £186,000, was circular in plan (following Jeremy Bentham's "panopticon"), so that wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Museum
The British Museum is a Museum, public museum dedicated to human history, art and culture located in the Bloomsbury area of London. Its permanent collection of eight million works is the largest in the world. It documents the story of human culture from its beginnings to the present.Among the national museums in London, sculpture and decorative art, decorative and applied art are in the Victoria and Albert Museum; the British Museum houses earlier art, non-Western art, prints and drawings. The National Gallery holds the national collection of Western European art to about 1900, while art of the 20th century on is at Tate Modern. Tate Britain holds British Art from 1500 onwards. Books, manuscripts and many works on paper are in the British Library. There are significant overlaps between the coverage of the various collections. Established in 1753, the British Museum was the first public national museum. In 2023, the museum received 5,820,860 visitors, 42% more than the previous y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
