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South Foreland Lighthouses
South Foreland Lighthouses are a pair of Victorian lighthouses on the South Foreland in St. Margaret's Bay, Dover, Kent, England, used to warn ships approaching the nearby Goodwin Sands. There has been a pair of lighthouses at South Foreland since at least the 1630s. Even after the decommissioning of the Lower Lighthouse the pair continued to be used as leading marks, with Admiralty charts into the 20th century indicating that the 'Lighthouses in line lead south of the Goodwin Sands'. South Foreland Upper Lighthouse was built in 1843. It went out of service in 1988 and is currently owned by the National Trust. It was the first lighthouse to use an electric light, and was the site chosen by Guglielmo Marconi for his pioneering experiments in wireless radio transmissions. South Foreland Lower Lighthouse was built at the same time further down the cliff, to the east, where it still stands; decommissioned in 1904, it is now in private ownership. History The dangers posed to ... [...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 adoption ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brazier
A brazier () is a container used to burn charcoal or other solid fuel for cooking, heating or cultural rituals. It often takes the form of a metal box or bowl with feet. Its elevation helps circulate air, feeding oxygen to the fire. Braziers have been used since ancient times; the Nimrud brazier dates to at least 824 BC. History The word brazier is mentioned in the Bible. The Hebrew word for brazier is believed to be of Egyptian origin, suggesting that it was imported from Egypt. The lone reference to it in the Bible being the following verse: * - the winter palace of King Jehoiakim was heated by a brazier (). Roman Emperor Jovian was poisoned by the fumes from a brazier in his tent in 364, ending the line of Constantine. Uses Heating Despite risks in burning charcoal on open fires, braziers were widely adopted for domestic heating, particularly and somewhat more safely used (namely in unglazed, shuttered-only buildings) in the Spanish-speaking world. Fernando de Alva Cor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frederick Hale Holmes
Frederick Hale Holmes (born 1812) was a professor of Chemistry at the Royal Panopticon of Science and Art and pioneer of electric lighting. Career In 1853 he demonstrated the ability of electro-magnetic generators to provide continuous current to power Arc lamp, arc lighting and in 1856 patented a magneto (power generation)#Lighthouses, magneto to power an arc light for lighthouses which he demonstrated to Michael Faraday at Blackwall in 1857. His experiments with alternating current arc lighting at South Foreland Lighthouse in 1857-60 were the subject of a lecture by Michael Faraday at the Royal Institution. One of Holmes' generators built in 1867 and used at Souter Lighthouse is displayed at the Science Museum, London. References {{Reflist 1812 births Lighting engineers Year of death missing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michael Faraday
Michael Faraday (; 22 September 1791 – 25 August 1867) was an English scientist who contributed to the study of electromagnetism and electrochemistry. His main discoveries include the principles underlying electromagnetic induction, diamagnetism and electrolysis. Although Faraday received little formal education, he was one of the most influential scientists in history. It was by his research on the magnetic field around a conductor carrying a direct current that Faraday established the concept of the electromagnetic field in physics. Faraday also established that magnetism could affect rays of light and that there was an underlying relationship between the two phenomena.. the 1911 Encyclopædia Britannica. He similarly discovered the principles of electromagnetic induction, diamagnetism, and the laws of electrolysis. His inventions of electromagnetic rotary devices formed the foundation of electric motor technology, and it was largely due to his efforts t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ELLIOT(1875) P083 - Plate III
Elliot (also spelled Eliot, Elliotte, Elliott, Eliott and Elyot) is a personal name which can serve as either a surname or a given name. Although the given name has historically been given to males, females have increasingly been given the name as well in the United States. Surname origin Differences in spelling can be distinguished in this rhyme: The double L and single T / Descent from Minto and Wolflee, / The double T and single L / Mark the old race in Stobs that dwell. / The single L and single T / The Eliots of St Germans be, / But double T and double L, / Who they are nobody can tell. Scotland The origin of the Scottish surname is obscure, due to much of the genealogy of the Eliott clan being burnt in the destruction of the castle at Stobs in 1712. The clan society usually accepts that the name originated from the town and river Elliot in Angus, Scotland. Other sources claim that the Scottish surnames (Eliott, Elliot) originate from the Ellot Scottish border-clan, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Walker (engineer)
James Walker (14 September 1781 – 8 October 1862) was an influential British civil engineer. Life Born in Law Wynd in Falkirk, the eldest of five children of John Walker and his wife Margaret, James was educated at the local school and was sent to Glasgow University in October 1794, aged 13. He studied Latin and Greek for two years, and logic during his third year. During his final two years he studied natural philosophy and mathematics, taking the first prize. He returned to Falkirk in May 1799, aged 18, and his family discussed a career in business or law. But, by chance, in the summer of 1800, he was asked to accompany his ill brother-in-law on a sea journey to London. Once there, he visited his uncle Ralph Walker in Blackwall, intending to return to Scotland after a week. However, Ralph discussed his work at the West India Docks, and was so impressed by his young nephew's grasp of engineering that he immediately took him on as his apprentice. Around 1800 they worked o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fresnel Lens
A Fresnel lens ( ; ; or ) is a type of composite compact lens developed by the French physicist Augustin-Jean Fresnel (1788–1827) for use in lighthouses. It has been called "the invention that saved a million ships." The design allows the construction of lenses of large aperture and short focal length without the mass and volume of material that would be required by a lens of conventional design. A Fresnel lens can be made much thinner than a comparable conventional lens, in some cases taking the form of a flat sheet. The simpler dioptric (purely refractive) form of the lens was first proposed by Count Buffon and independently reinvented by Fresnel. The ''catadioptric'' form of the lens, entirely invented by Fresnel, has outer elements that use total internal reflection as well as refraction; it can capture more oblique light from a light source and add it to the beam of a lighthouse, making the light visible from greater distances. Description The Fresnel lens redu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corporation Of Trinity House
"Three In One" , formation = , founding_location = Deptford, London, England , status = Royal Charter corporation and registered charity , purpose = Maintenance of lighthouses, buoys and beacons , headquarters = Trinity House, Tower Hill, London, England , region = , membership = , leader_title = Master , leader_name = Anne, Princess Royal , leader_title2 = Deputy Master , leader_name2 = Captain Ian McNaught , revenue = £38,405,000 (2020) , expenses = £46,801,000 (2020) , staff = 312 (2020) , website trinityhouse.co.uk The Corporation of Trinity House of Deptford Strond, also known as Trinity House (and formally as The Master, Wardens and Assistants of the Guild Fraternity or Brotherhood of the most glorious and undivided Trinity and of St Clement in the Parish of Deptford Strond in the County of Kent), is the of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FC Position And Old Lighthouse, St Margaret's
FC may refer to: Businesses, organisations, and schools * Fergusson College, a science and arts college in Pune, India * Finncomm Airlines (IATA code) * FranklinCovey company, NYSE stock symbol FC * Frontier Corps, a paramilitary force in Pakistan Science and technology Computing * fc (Unix), computer program that relists commands * FC connector, a type of optical-fiber connector * Flash controller * Family Computer, Japanese version of the Nintendo Entertainment System game console * Fibre Channel, a serial computer bus * Microsoft File Compare program * fc a casefolding feature in perl Vehicles * Fairchild FC, 1920s and 1930s aircraft * Holden FC, a motor vehicle * A second generation Mazda RX-7 car * Fully cellular, a type of container ship Medicine A two-in-one vaccine against the flu and common cold. Other sciences * Female condom (FC1, FC2), a contraceptive * Foot-candle (symbol fc or ft-c), a unit of illumination * Formal charge, a Lewis structure concept in chemist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Yenn
John Yenn (1750–1821) was a notable 18th-century English architect. Life Yenn was born on 8 March 1750. He was a student at the Royal Academy from September 1769. He was elected an associate of the academy in 1774 and a full academician in 1791. He served as treasurer of the academy from 1796 to 1820. He was a pupil of Sir William Chambers. In the late 1770s he succeeded Chambers as the Duke of Marlborough's architect at Blenheim Palace, where his works included, in 1789, the design of the small Corinthian "Temple of Health", built to celebrate the recovery of George III from illness. Nearby, in 1783, he built a new aisle at Woodstock church. Chambers provided him with a number of other important positions: in 1780 he became the Clerk of the Works at Richmond Park, and he later held the same position at Kensington Palace, Buckingham House and at the Royal Mews The Royal Mews is a mews, or collection of equestrian stables, of the British Royal Family. In London these ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parabolic Reflectors
A parabolic (or paraboloid or paraboloidal) reflector (or dish or mirror) is a reflective surface used to collect or project energy such as light, sound, or radio waves. Its shape is part of a circular paraboloid, that is, the surface generated by a parabola revolving around its axis. The parabolic reflector transforms an incoming plane wave travelling along the axis into a spherical wave converging toward the focus. Conversely, a spherical wave generated by a point source placed in the focus is reflected into a plane wave propagating as a collimated beam along the axis. Parabolic reflectors are used to collect energy from a distant source (for example sound waves or incoming star light). Since the principles of reflection are reversible, parabolic reflectors can also be used to collimate radiation from an isotropic source into a parallel beam. In optics, parabolic mirrors are used to gather light in reflecting telescopes and solar furnaces, and project a beam of light in flashl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knott Family
The Knott family of lighthouse keepers is credited with the longest period of continuous service in the history of staffed lighthouses, commencing in 1730 at South Foreland, Kent, with William Knott and ending in 1906 at Skerries (Anglesey, Wales) with Henry Thomas Knott (son of George Knott – see below) who died in 1910 having retired to Crewe. There are three famous lighthouse-keeping families in England, the other two being the Darling (see: Grace Darling) and the Hall families. The three families are inter-related. South Foreland Much of the contribution of the Knott family to lighthouse keeping was made at South Foreland Lighthouse where members oversaw many changes in lighting technology from coal fires to electricity. Two fixed white lights were exhibited as a 'high' and a 'low' light from the South Foreland from 1634. These were simple coal fires until 1793, during the time of William's service from 1730 and Henry's from 1777. In 1793, 53 cm (21-inch) diameter para ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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