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John Harrison

Index John Harrison

John Harrison (– 24 March 1776) was a self-educated English carpenter and clockmaker who invented a marine chronometer, a long-sought-after device for solving the problem of calculating longitude while at sea. [1]

172 relations: A&E Networks, Anchor escapement, Angle, Astronomer Royal, Astronomical object, Astronomy, Balance spring, Balance wheel, Barbados, Barrow upon Humber, Barton-upon-Humber, BBC, Beat (acoustics), Bell, Bimetallic strip, Blue plaque, Board of Longitude, Brass, Brian McNeill, Bridgetown, Brocklesby, Cambridge, Cambridge Digital Library, Carpentry, Channel 4, Christiaan Huygens, Cleethorpes, Clock, Clockmaker, Clockmakers' Museum, Commemorative plaque, Conducting, Conservation-restoration of cultural heritage, Copley Medal, Corpus Clock, Cue sports, Dava Sobel, Dead reckoning, Diamond, Dick Gaughan, Donald Saff, Duralumin, Edmond Halley, England, Escapement, Euler angles, Fletcher Christian, Foulby, French Academy of Sciences, Frequency, ..., Friction, Gemma Frisius, George Graham (clockmaker), George III of the United Kingdom, Google, Google Doodle, Grandfather clock, Grasshopper escapement, Greenwich, Gridiron pendulum, Guildhall, London, Guinness World Records, H6, Harmonic, Harrison Birtwistle, Harvard University, Henry Sully, History of longitude, HMS Bounty, HMS Centurion (1732), HMS Orford (1698), HMS Tartar (1756), Holborn, Horology, Humidity, Invar, Isaac Newton, ITV Studios, Jamaica, James Cook, Jeremy Irons, John Arnold (watchmaker), John Jefferys (clockmaker), Kingdom of Great Britain, Larcum Kendall, Leeds City Museum, Library of Congress, Lignum vitae, Lincolnshire, Lisbon, London, Longitude, Longitude (book), Longitude (TV series), Longitude Act, Longitude rewards, Lubricant, Lunar distance (navigation), Machine, Marine chronometer, Martin Burgess, Master (naval), Meantone temperament, Meridian (geography), Michael Gambon, Middle Ages, Movement (clockwork), Music, Musical tuning, Mutiny on the Bounty, National Association of Watch and Clock Collectors, National Maritime Museum, Navigation, Nevil Maskelyne, Northern Rail (Serco-Abellio), Norwich, Nostell Priory, Nova (TV series), Oak, Only Fools and Horses, Oscillation, Paris, Parliament of the United Kingdom, PBS, Pendulum, Peter Graham (composer), Pi, Pinion, Pitcairn Islands, Pocket watch, Pound sterling, Pressure, Prime meridian, Red Lion Square, Remontoire, Rolling-element bearing, Royal Navy, Royal Observatory, Greenwich, Royal Society, Rupert Gould, Science Museum, London, Scilly naval disaster of 1707, Shipwreck, Show of Hands, Sitcom, Smallpox, St John-at-Hampstead, Steve Knightley, Tacking (sailing), Tassaert family, Temperature, The Island of the Day Before, The Observer, Thermal expansion, Thomas Earnshaw, Thomas Mudge (horologist), Thomas Tompion, Time on Our Hands, Trade, Turret clock, Victorian decorative arts, Wakefield, War of 1812, War of the Austrian Succession, Watch, West Riding of Yorkshire, Westminster Abbey, William Bligh, William Harrison (instrument maker), World War I, Worshipful Company of Clockmakers, 100 Greatest Britons. Expand index (122 more) »

A&E Networks

A&E Networks (branded as A+E Networks) is a US media company that owns a group of television channels available via cable & satellite in the U.S. and abroad.

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Anchor escapement

In horology, the anchor escapement is a type of escapement used in pendulum clocks.

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Angle

In plane geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle.

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Astronomer Royal

Astronomer Royal is a senior post in the Royal Households of the United Kingdom.

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Astronomical object

An astronomical object or celestial object is a naturally occurring physical entity, association, or structure that exists in the observable universe.

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Astronomy

Astronomy (from ἀστρονομία) is a natural science that studies celestial objects and phenomena.

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Balance spring

A balance spring, or hairspring, is a spring attached to the balance wheel in mechanical timepieces.

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Balance wheel

A balance wheel, or balance, is the timekeeping device used in mechanical watches and some clocks, analogous to the pendulum in a pendulum clock.

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Barbados

Barbados is an island country in the Lesser Antilles of the West Indies, in the Caribbean region of North America.

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Barrow upon Humber

Barrow upon Humber is a village and civil parish in North Lincolnshire, England.

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Barton-upon-Humber

Barton-upon-Humber or Barton is a town and civil parish in North Lincolnshire, England.

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BBC

The British Broadcasting Corporation (BBC) is a British public service broadcaster.

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Beat (acoustics)

In acoustics, a beat is an interference pattern between two sounds of slightly different frequencies, perceived as a periodic variation in volume whose rate is the difference of the two frequencies.

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Bell

A bell is a directly struck idiophone percussion instrument.

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Bimetallic strip

A bimetallic strip is used to convert a temperature change into mechanical displacement.

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Blue plaque

A blue plaque is a permanent sign installed in a public place in the United Kingdom and elsewhere to commemorate a link between that location and a famous person, event, or former building on the site, serving as a historical marker.

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Board of Longitude

The Commissioners for the Discovery of the Longitude at Sea, or more popularly Board of Longitude, was a British government body formed in 1714 to administer a scheme of prizes intended to encourage innovators to solve the problem of finding longitude at sea.

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Brass

Brass is a metallic alloy that is made of copper and zinc.

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Brian McNeill

Brian McNeill (born 6 April 1950, Falkirk, Scotland) is a Scottish folk multi-instrumentalist, songwriter, record producer and musical director.

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Bridgetown

Bridgetown (UN/LOCODE: BB BGI) is the capital and largest city of Barbados.

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Brocklesby

Brocklesby is a village and civil parish in the West Lindsey district of Lincolnshire, England.

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Cambridge

Cambridge is a university city and the county town of Cambridgeshire, England, on the River Cam approximately north of London.

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Cambridge Digital Library

The Cambridge Digital Library is a project operated by the Cambridge University Library designed to make items from the unique and distinctive collections of Cambridge University Library available online.

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Carpentry

Carpentry is a skilled trade in which the primary work performed is the cutting, shaping and installation of building materials during the construction of buildings, ships, timber bridges, concrete formwork, etc.

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Channel 4

Channel 4 is a British public-service television broadcaster that began transmission on 2 November 1982.

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Christiaan Huygens

Christiaan Huygens (Hugenius; 14 April 1629 – 8 July 1695) was a Dutch physicist, mathematician, astronomer and inventor, who is widely regarded as one of the greatest scientists of all time and a major figure in the scientific revolution.

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Cleethorpes

Cleethorpes is a seaside resort on the estuary of the Humber in North East Lincolnshire with a population of nearly 40,000 in 2011.

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Clock

A clock is an instrument to measure, keep, and indicate time.

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Clockmaker

A clockmaker is an artisan who makes and/or repairs clocks.

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Clockmakers' Museum

The Clockmakers' Museum in London, England is a collection of clocks, watches and other horological items which belongs to the Worshipful Company of Clockmakers, which is one of the City of London Livery Companies.

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Commemorative plaque

A commemorative plaque, or simply plaque, or in other places referred to as a historical marker or historic plaque, is a plate of metal, ceramic, stone, wood, or other material, typically attached to a wall, stone, or other vertical surface, and bearing text or an image in relief, or both, to commemorate one or more persons, an event, a former use of the place, or some other thing.

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Conducting

Conducting is the art of directing a musical performance, such as an orchestral or choral concert.

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Conservation-restoration of cultural heritage

The conservation-restoration of cultural heritage focuses on protection and care of tangible cultural heritage, including artworks, architecture, archaeology, and museum collections.

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Copley Medal

The Copley Medal is a scientific award given by the Royal Society, for "outstanding achievements in research in any branch of science." It alternates between the physical and the biological sciences.

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Corpus Clock

The Corpus Clock is a large sculptural clock at street level on the outside of the Taylor Library at Corpus Christi College, Cambridge University, in the United Kingdom, at the junction of Bene't Street and Trumpington Street, looking out over King's Parade.

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Cue sports

Cue sports (sometimes written cuesports), also known as billiard sports, are a wide variety of games of skill generally played with a cue stick, which is used to strike billiard balls and thereby cause them to move around a cloth-covered billiards table bounded by elastic bumpers known as.

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Dava Sobel

Dava Sobel (born June 15, 1947) is an American writer of popular expositions of scientific topics.

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Dead reckoning

In navigation, dead reckoning is the process of calculating one's current position by using a previously determined position, or fix, and advancing that position based upon known or estimated speeds over elapsed time and course.

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Diamond

Diamond is a solid form of carbon with a diamond cubic crystal structure.

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Dick Gaughan

Richard Peter Gaughan (born 17 May 1948 in Glasgow) is a Scottish musician, singer and songwriter, particularly of folk and social protest songs.

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Donald Saff

Donald Jay Saff (born 12 December 1937) is an artist, art historian, educator, and lecturer, specializing in the fields of contemporary art in addition to American and English horology.

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Duralumin

Duralumin (also called duraluminum, duraluminium, duralum, dural(l)ium, or dural) is a trade name for one of the earliest types of age-hardenable aluminium alloys.

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Edmond Halley

Edmond (or Edmund) Halley, FRS (–) was an English astronomer, geophysicist, mathematician, meteorologist, and physicist.

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England

England is a country that is part of the United Kingdom.

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Escapement

An escapement is a device in mechanical watches and clocks that transfers energy to the timekeeping element (the "impulse action") and allows the number of its oscillations to be counted (the "locking action").

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Euler angles

The Euler angles are three angles introduced by Leonhard Euler to describe the orientation of a rigid body with respect to a fixed coordinate system.

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Fletcher Christian

Fletcher Christian (25 September 1764 – 20 September 1793) was master's mate on board HMS ''Bounty'' during Lieutenant William Bligh's voyage to Tahiti during 1787–1789 for breadfruit plants.

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Foulby

Foulby is a village in the county of West Yorkshire, England.

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French Academy of Sciences

The French Academy of Sciences (French: Académie des sciences) is a learned society, founded in 1666 by Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French scientific research.

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Frequency

Frequency is the number of occurrences of a repeating event per unit of time.

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Friction

Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.

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Gemma Frisius

Gemma Frisius (born Jemme Reinerszoon; December 9, 1508 – May 25, 1555), was a Dutch physician, mathematician, cartographer, philosopher, and instrument maker.

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George Graham (clockmaker)

George Graham (7 July 1673 – 20 November 1751) was an English clockmaker, inventor, and geophysicist, and a Fellow of the Royal Society.

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George III of the United Kingdom

George III (George William Frederick; 4 June 1738 – 29 January 1820) was King of Great Britain and Ireland from 25 October 1760 until the union of the two countries on 1 January 1801, after which he was King of the United Kingdom of Great Britain and Ireland until his death in 1820.

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Google

Google LLC is an American multinational technology company that specializes in Internet-related services and products, which include online advertising technologies, search engine, cloud computing, software, and hardware.

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Google Doodle

A Google Doodle is a special, temporary alteration of the logo on Google's homepages that commemorates holidays, events, achievements, and people.

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Grandfather clock

A grandfather clock (also a longcase clock, tall-case clock, or floor clock) is a tall, freestanding, weight-driven pendulum clock with the pendulum held inside the tower or waist of the case.

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Grasshopper escapement

The grasshopper escapement is a low-friction escapement for pendulum clocks invented by British clockmaker John Harrison around 1722.

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Greenwich

Greenwich is an area of south east London, England, located east-southeast of Charing Cross.

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Gridiron pendulum

The gridiron pendulum was a temperature-compensated clock pendulum invented by British clockmaker John Harrison around 1726 and later modified by John Ellicott.

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Guildhall, London

Guildhall is a Grade I-listed building in the City of London, England.

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Guinness World Records

Guinness World Records, known from its inception in 1955 until 2000 as The Guinness Book of Records and in previous United States editions as The Guinness Book of World Records, is a reference book published annually, listing world records both of human achievements and the extremes of the natural world.

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H6

H6, H06, or H-6 may refer to.

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Harmonic

A harmonic is any member of the harmonic series, a divergent infinite series.

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Harrison Birtwistle

Sir Harrison Paul Birtwistle, (born 15 July 1934) is a British composer.

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Harvard University

Harvard University is a private Ivy League research university in Cambridge, Massachusetts.

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Henry Sully

Henry Sully (1680–1729) was an English clockmaker.

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History of longitude

The history of longitude is a record of the effort, by astronomers, cartographers and navigators over several centuries, to discover a means of determining longitude.

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HMS Bounty

HMS Bounty, also known as HM Armed Vessel Bounty, was a small merchant vessel that the Royal Navy purchased for a botanical mission.

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HMS Centurion (1732)

HMS Centurion was a 60-gun fourth rate ship of the line of the Royal Navy, built at Portsmouth Dockyard and launched on 6 January 1732.

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HMS Orford (1698)

HMS Orford was a 70-gun third-rate ship of the line of the Royal Navy, launched at Deptford in 1698.

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HMS Tartar (1756)

HMS Tartar was a 28-gun sixth-rate frigate of the Royal Navy.

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Holborn

Holborn is a district in the London boroughs of Camden and City of Westminster and a locality in the ward of Farringdon Without in the City of London.

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Horology

Horology ("the study of time", related to Latin horologium from Greek ὡρολόγιον, "instrument for telling the hour", from ὥρα hṓra "hour; time" and -o- interfix and suffix -logy) is the study of the measurement of time.

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Humidity

Humidity is the amount of water vapor present in the air.

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Invar

Invar, also known generically as FeNi36 (64FeNi in the US), is a nickel–iron alloy notable for its uniquely low coefficient of thermal expansion (CTE or α).

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Isaac Newton

Sir Isaac Newton (25 December 1642 – 20 March 1726/27) was an English mathematician, astronomer, theologian, author and physicist (described in his own day as a "natural philosopher") who is widely recognised as one of the most influential scientists of all time, and a key figure in the scientific revolution.

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ITV Studios

ITV Studios is a television production company owned by the British television broadcaster ITV plc.

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Jamaica

Jamaica is an island country situated in the Caribbean Sea.

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James Cook

Captain James Cook (7 November 1728Old style date: 27 October14 February 1779) was a British explorer, navigator, cartographer, and captain in the Royal Navy.

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Jeremy Irons

Jeremy John Irons (born 19 September 1948) is an English actor.

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John Arnold (watchmaker)

John Arnold (1736 – 11 August 1799) was an English watchmaker and inventor.

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John Jefferys (clockmaker)

John Jefferys (1701 – 1754) was an English clockmaker and watchmaker.

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Kingdom of Great Britain

The Kingdom of Great Britain, officially called simply Great Britain,Parliament of the Kingdom of England.

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Larcum Kendall

Larcum Kendall (21 September 1719 in Charlbury, Oxfordshire – 22 November 1790 in London) was a British watchmaker.

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Leeds City Museum

Leeds City Museum, originally established in 1819, reopened on 13 September 2008 in Leeds, West Yorkshire, England.

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Library of Congress

The Library of Congress (LOC) is the research library that officially serves the United States Congress and is the de facto national library of the United States.

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Lignum vitae

Lignum vitae is a wood, also called guayacan or guaiacum, and in parts of Europe known as pockholz, from trees of the genus Guaiacum.

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Lincolnshire

Lincolnshire (abbreviated Lincs) is a county in east central England.

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Lisbon

Lisbon (Lisboa) is the capital and the largest city of Portugal, with an estimated population of 552,700, Census 2011 results according to the 2013 administrative division of Portugal within its administrative limits in an area of 100.05 km2.

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London

London is the capital and most populous city of England and the United Kingdom.

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Longitude

Longitude, is a geographic coordinate that specifies the east-west position of a point on the Earth's surface.

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Longitude (book)

Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time is a best-selling book by Dava Sobel about John Harrison, an 18th-century clockmaker who created the first clock (chronometer) sufficiently accurate to be used to determine longitude at sea—an important development in navigation.

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Longitude (TV series)

Longitude is a 2000 TV drama produced by Granada Television and the A&E Network for Channel 4, first broadcast between 2 and 3 January 2000 in the UK on Channel 4 and the US on A&E.

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Longitude Act

The Longitude Act was an Act of Parliament of the United Kingdom passed in July 1714 at the end of the reign of Queen Anne.

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Longitude rewards

The longitude rewards were the system of inducement prizes offered by the British government as a simple and practical method for the precise determination of a ship's longitude at sea.

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Lubricant

A lubricant is a substance, usually organic, introduced to reduce friction between surfaces in mutual contact, which ultimately reduces the heat generated when the surfaces move.

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Lunar distance (navigation)

In celestial navigation, lunar distance is the angular distance between the Moon and another celestial body.

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Machine

A machine uses power to apply forces and control movement to perform an intended action.

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Marine chronometer

A marine chronometer is a timepiece that is precise and accurate enough to be used as a portable time standard; it can therefore be used to determine longitude by means of celestial navigation.

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Martin Burgess

Edward Martin Burgess FSA FBHI (born 21 November 1931), known as Martin Burgess, is an English horologist and master clockmaker.

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Master (naval)

The master, or sailing master, was a historical rank for a naval officer trained in and responsible for the navigation of a sailing vessel.

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Meantone temperament

Meantone temperament is a musical temperament, that is a tuning system, obtained by slightly compromising the fifths in order to improve the thirds.

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Meridian (geography)

A (geographical) meridian (or line of longitude) is the half of an imaginary great circle on the Earth's surface, terminated by the North Pole and the South Pole, connecting points of equal longitude.

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Michael Gambon

Sir Michael John Gambon, (born 19 October 1940) is an Irish actor who has worked in theatre, television, and film.

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Middle Ages

In the history of Europe, the Middle Ages (or Medieval Period) lasted from the 5th to the 15th century.

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Movement (clockwork)

In horology, a movement, also known as a caliber, is the mechanism of a clock or watch, as opposed to the case, which encloses and protects the movement, and the face, which displays the time.

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Music

Music is an art form and cultural activity whose medium is sound organized in time.

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Musical tuning

In music, there are two common meanings for tuning.

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Mutiny on the Bounty

The mutiny on the Royal Navy vessel took place in the south Pacific on 28 April 1789.

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National Association of Watch and Clock Collectors

The National Association of Watch and Clock Collectors (NAWCC) is an American non-profit organization with about 13,000 members.

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National Maritime Museum

The National Maritime Museum (NMM) in Greenwich, London, is the leading maritime museum of the United Kingdom and may be the largest museum of its kind in the world.

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Navigation

Navigation is a field of study that focuses on the process of monitoring and controlling the movement of a craft or vehicle from one place to another.

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Nevil Maskelyne

The Rev Dr Nevil Maskelyne DD FRS FRSE (6 October 1732 – 9 February 1811) was the fifth British Astronomer Royal.

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Northern Rail (Serco-Abellio)

Northern Rail was an English train operating company owned by Serco-Abellio that operated the Northern franchise from 2004 until 2016.

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Norwich

Norwich (also) is a city on the River Wensum in East Anglia and lies approximately north-east of London.

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Nostell Priory

Nostell Priory is a Palladian house located in Nostell, near Crofton close to Wakefield, West Yorkshire, England, approached by the Doncaster road from Wakefield.

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Nova (TV series)

Nova (stylized NOVΛ) is an American popular science television series produced by WGBH Boston.

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Oak

An oak is a tree or shrub in the genus Quercus (Latin "oak tree") of the beech family, Fagaceae.

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Only Fools and Horses

Only Fools and Horses is a British sitcom created and written by John Sullivan.

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Oscillation

Oscillation is the repetitive variation, typically in time, of some measure about a central value (often a point of equilibrium) or between two or more different states.

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Paris

Paris is the capital and most populous city of France, with an area of and a population of 2,206,488.

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Parliament of the United Kingdom

The Parliament of the United Kingdom, commonly known as the UK Parliament or British Parliament, is the supreme legislative body of the United Kingdom, the Crown dependencies and overseas territories.

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PBS

The Public Broadcasting Service (PBS) is an American public broadcaster and television program distributor.

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Pendulum

A pendulum is a weight suspended from a pivot so that it can swing freely.

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Peter Graham (composer)

Peter Graham (born 1958) is one of the leading composers for brass band.

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Pi

The number is a mathematical constant.

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Pinion

A pinion is a round gear—usually to the smaller of two meshed gears—used in several applications, including drivetrain and rack and pinion systems.

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Pitcairn Islands

The Pitcairn Islands (Pitkern: Pitkern Ailen), officially Pitcairn, Henderson, Ducie and Oeno Islands, are a group of four volcanic islands in the southern Pacific Ocean that form the last British Overseas Territory in the South Pacific.

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Pocket watch

A pocket watch (or pocketwatch) is a watch that is made to be carried in a pocket, as opposed to a wristwatch, which is strapped to the wrist.

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Pound sterling

The pound sterling (symbol: £; ISO code: GBP), commonly known as the pound and less commonly referred to as Sterling, is the official currency of the United Kingdom, Jersey, Guernsey, the Isle of Man, South Georgia and the South Sandwich Islands, the British Antarctic Territory, and Tristan da Cunha.

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Pressure

Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.

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Prime meridian

A prime meridian is a meridian (a line of longitude) in a geographic coordinate system at which longitude is defined to be 0°.

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Red Lion Square

Red Lion Square is a small square in Holborn, London.

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Remontoire

In mechanical horology, a remontoire (from the French remonter, meaning 'to wind') is a small secondary source of power, a weight or spring, which runs the timekeeping mechanism and is itself periodically rewound by the timepiece's main power source, such as a mainspring.

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Rolling-element bearing

A rolling-element bearing, also known as a rolling bearing, is a bearing which carries a load by placing rolling elements (such as balls or rollers) between two bearing rings called races.

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Royal Navy

The Royal Navy (RN) is the United Kingdom's naval warfare force.

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Royal Observatory, Greenwich

The Royal Observatory, Greenwich (ROG; known as the Old Royal Observatory from 1957 to 1998, when the working Royal Greenwich Observatory, RGO, moved from Greenwich to Herstmonceux) is an observatory situated on a hill in Greenwich Park, overlooking the River Thames.

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Royal Society

The President, Council and Fellows of the Royal Society of London for Improving Natural Knowledge, commonly known as the Royal Society, is a learned society.

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Rupert Gould

Rupert Thomas Gould (16 November 1890 – 5 October 1948) was a lieutenant-commander in the British Royal Navy noted for his contributions to horology (the science and study of timekeeping devices).

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Science Museum, London

The Science Museum is a major museum on Exhibition Road in South Kensington, London.

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Scilly naval disaster of 1707

The Scilly naval disaster of 1707 was the loss of four warships of a Royal Navy fleet off the Isles of Scilly in severe weather on 22 October 1707.

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Shipwreck

A shipwreck is the remains of a ship that has wrecked, which are found either beached on land or sunken to the bottom of a body of water.

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Show of Hands

Show of Hands is a multi-award-winning English acoustic roots/folk duo formed in 1986 by singer-songwriter Steve Knightley (guitars, mandolin, mandocello, cuatro) and composer and multi-instrumentalist Phil Beer (vocals, guitars, violin, viola, mandolin, mandocello).

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Sitcom

A sitcom, short for "situation comedy", is a genre of comedy centered on a fixed set of characters who carry over from episode to episode.

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Smallpox

Smallpox was an infectious disease caused by one of two virus variants, Variola major and Variola minor.

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St John-at-Hampstead

St John-at-Hampstead is a Church of England parish church dedicated to St John the Evangelist (though the original dedication was only refined from St John to this in 1917 by the Bishop of London) in Church Row, Hampstead, London.

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Steve Knightley

Steve Knightley (born 1954) is an English singer, songwriter and acoustic musician.

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Tacking (sailing)

Tacking or coming about is a sailing maneuver by which a sailing vessel, whose desired course is into the wind, turns its bow toward the wind so that the direction from which the wind blows changes from one side to the other, allowing progress in the desired direction.

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Tassaert family

Tassaert was the surname of a family of painters, sculptors and illustrators, originating in Antwerp, which later settled and worked in France and Prussia in the 17th and 18th century.

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Temperature

Temperature is a physical quantity expressing hot and cold.

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The Island of the Day Before

The Island of the Day Before (L'isola del giorno prima) is a historical fiction novel by Umberto Eco set in the 17th-century during the historical search for the secret of longitude.

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The Observer

The Observer is a British newspaper published on Sundays.

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Thermal expansion

Thermal expansion is the tendency of matter to change in shape, area, and volume in response to a change in temperature.

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Thomas Earnshaw

Thomas Earnshaw (4 February 1749 in Ashton-under-Lyne – 1 March 1829 in London) was an English watchmaker who, following John Arnold's earlier work, further simplified the process of marine chronometer production, making them available to the general public.

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Thomas Mudge (horologist)

Thomas Mudge (1715 – 14 November 1794, London) was an English horologist who invented the lever escapement, the greatest single improvement ever applied to pocket watches.

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Thomas Tompion

Thomas Tompion (1639–1713) was an English clockmaker, watchmaker and mechanician who is still regarded to this day as the Father of English Clockmaking.

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Time on Our Hands

"Time on Our Hands" is an episode of the BBC sitcom, Only Fools and Horses.

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Trade

Trade involves the transfer of goods or services from one person or entity to another, often in exchange for money.

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Turret clock

A turret clock or a public clock is a clock that is larger than a domestic clock and has a mechanism designed to drive a visual time indicator such as dials and or bells as a public amenity.

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Victorian decorative arts

Victorian decorative arts refers to the style of decorative arts during the Victorian era.

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Wakefield

Wakefield is a city in West Yorkshire, England, on the River Calder and the eastern edge of the Pennines, which had a population of 99,251 at the 2011 census.

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War of 1812

The War of 1812 was a conflict fought between the United States, the United Kingdom, and their respective allies from June 1812 to February 1815.

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War of the Austrian Succession

The War of the Austrian Succession (1740–1748) involved most of the powers of Europe over the question of Maria Theresa's succession to the Habsburg Monarchy.

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Watch

A watch is a timepiece intended to be carried or worn by a person.

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West Riding of Yorkshire

The West Riding of Yorkshire is one of the three historic subdivisions of Yorkshire, England.

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Westminster Abbey

Westminster Abbey, formally titled the Collegiate Church of St Peter at Westminster, is a large, mainly Gothic abbey church in the City of Westminster, London, England, just to the west of the Palace of Westminster.

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William Bligh

Vice-Admiral William Bligh (9 September 1754 – 7 December 1817) was an officer of the British Royal Navy and a colonial administrator.

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William Harrison (instrument maker)

William Harrison (20 May 1728 – 24 April 1815) was an English instrument maker, the son of John Harrison, inventor of the marine chronometer.

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World War I

World War I (often abbreviated as WWI or WW1), also known as the First World War, the Great War, or the War to End All Wars, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918.

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Worshipful Company of Clockmakers

The Worshipful Company of Clockmakers is one of the Livery Companies of the City of London.

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100 Greatest Britons

The 100 Greatest Britons was a television series broadcast by the BBC in 2002.

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Redirects here:

Harrison Number Four, Harrison, John, John Harrison (clockmaker).

References

[1] https://en.wikipedia.org/wiki/John_Harrison

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