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English inventions and discoveries are objects, processes or techniques which owe their existence either partially or entirely to a person born in England; in some cases, their Englishness is determined by the fact that they were brought into existence in England , by non-English people working in the country. Often, things which are discovered for the first time, are also called "inventions", and in many cases, there is no clear line between the two. Royal motto (French): Dieu et mon droit (Translated: God and my right) Englands location (dark green) within the United Kingdom (light green), with the Republic of Ireland (blue) to its west Languages English Capital London Largest city London Area â Total Ranked 1st UK 130,395 km² Population âmid-2004...
This article needs to be cleaned up to conform to a higher standard of quality. ...
In music, an invention is a short composition with two or three part counterpoint. ...
The following is a list of inventions or discoveries often held to be in some way English: This list is incomplete; you can help by expanding it.
Agriculture
The seed drill was invented by Jethro Tull in 1701: It allowed farmers to sow seeds in well-spaced rows at specific depths. ...
This article is about the English agriculturalist. ...
Astronomy Adjective Uranian Atmospheric characteristics Atmospheric pressure 120 kPa (at the cloud level) Hydrogen 83% Helium 15% Methane 1. ...
Atmospheric pressure Titania (ti-taan-ee-É or tye-tan-ee-É) is the largest moon of Uranus. ...
Atmospheric pressure 0 kPa Oberon (oe-bur-on) is the outermost of the major moons of the planet Uranus. ...
[5] Atmospheric characteristics Pressure trace, significant spatial variability [6], [7] Water vapour 91% [8] Carbon dioxide 3. ...
Atmosphere none Mimas (mye-mÉs, IPA , Greek ÎίμᾱÏ, rarely ÎίμανÏ) is a moon of Saturn that was discovered in 1789 by William Herschel. ...
Sir Wilhelm Friedrich Herschel, FRS KH (November 15, 1738 â August 25, 1822) was a German-born British astronomer and composer who became famous for discovering the planet Uranus. ...
Communications A clockwork radio is a radio that is powered by clockwork wind-up mechanism driving an internal generator, rather than batteries or solar cells or mains electricity or thermoelectrics. ...
Trevor G. Baylis (born May 13, 1937 in Kilburn, London, England) is a British inventor. ...
Computing The analytical engine, an important step in the history of computers, is the design of a mechanical modern general-purpose computer by the British professor of mathematics Charles Babbage. ...
Charles Babbage Charles Babbage (26 December 1791 â 18 October 1871) was an English mathematician, analytical philosopher, mechanical engineer and (proto-) computer scientist who originated the idea of a programmable computer. ...
The ACE (Automatic Computing Engine) was the first computer designed in Britain; it was designed by Alan Turing in 1946. ...
The Pilot ACE was one of the first computers built in the United Kingdom, at the National Physical Laboratory (NPL) in the late 1940s. ...
Alan Turing is often considered the father of modern computer science. ...
The Bombe replicated the action of several Enigma machines wired together. ...
A Colossus Mark II computer. ...
Thomas (Tommy) Harold Flowers MBE (22 December 1905–28 October 1998) was a British General Post Office (GPO) engineer who, during World War II designed Colossus — an early computer — to assist the codebreaking efforts at Bletchley Park. ...
A difference engine is a historical, mechanical special-purpose computer designed to tabulate polynomial functions. ...
WWWs historical logo designed by Robert Cailliau The World Wide Web (WWW or simply the Web) is a global, read-write information space. ...
Sir Tim Berners-Lee Sir Tim (Timothy John) Berners-Lee, KBE (TimBL or TBL) (b. ...
The Sinclair ZX Spectrum was a home computer released in the United Kingdom in 1982 by Sinclair Research. ...
Sir Clive Marles Sinclair (born July 30, 1940), is a British entrepreneur and inventor of, among other things, the worlds first pocket calculator, in 1962 and the beloved ZX Spectrum computer in 1982. ...
Clock making The anchor escapement is a type of escapement, the mechanism in a clock that maintains the swinging of a pendulum for accurate timekeeping. ...
A portrait, claimed by historian Lisa Jardine to be of Robert Hooke. ...
The balance spring is a scientific device invented by Robert Hooke. ...
Christiaan Huygens Christiaan Huygens (pronounced in English (IPA): ; in Dutch: ) (April 14, 1629âJuly 8, 1695), was a Dutch mathematician and physicist; born in The Hague as the son of Constantijn Huygens. ...
The Grasshopper escapement is a remarkable low friction chronometer escapement - A control device for the step-by-step release of a clocks driving power. ...
The gridiron pendulum was an improvement of clocks developed by John Harrison, consisting of alternating brass and steel rods assembled so that the different expansion and contraction rates cancelled each other out. ...
Longitude, sometimes denoted by the Greek letter λ, describes the location of a place on Earth east or west of a north-south line called the Prime Meridian. ...
John Harrison. ...
Clothing manufacturing Jedediah Strutt (1726â1797) was a hosier from Derby, England. ...
The flying shuttle was developed by John Kay in 1733, and was one of the key developments in weaving that helped fuel the Industrial Revolution. ...
The Memorial to John Kay in Bury, Lancashire, England John Kay (June 17, 1704 â 1780) was the inventor of the flying shuttle, which was a key contribution to the Industrial Revolution. ...
Mauveine, also known as aniline purple, was the first synthetic organic dye. ...
Sir William Henry Perkin (March 12, 1838 â July 14, 1907) was an English chemist best known for his discovery, at the age of 18, of the first aniline dye, mauveine. ...
The power loom was designed in 1784 by Edmund Cartwright and first built in 1785. ...
Edmund Cartwright Edmund Cartwright (April 24, 1743 â October 30, 1823) was a British clergyman and inventor of the power loom. ...
The spinning frame was an invention developed during the 18th century British Industrial Revolution. ...
John Kay was a homo in the 1790s he created the man dildo. ...
Model of the spinning jenny in a museum in Wuppertal, Germany The spinning jenny is a multi-spool spinning wheel. ...
James Hargreaves (1720 â April 22, 1778) was a weaver and carpenter in Lancashire, England. ...
The spinning mule was created by Samuel Crompton. ...
Samuel Crompton (December 3, 1753 â June 26, 1827), English inventor, was born at Firwood near Bolton, Lancashire. ...
Cryptography The Playfair system was invented by Charles Wheatstone, who first described it in 1854. ...
Charles Wheatstone Sir Charles Wheatstone (February 6, 1802 - October 19, 1875) was the British inventor of many innovations including the English concertina the Stereoscope an early form of microphone the Playfair cipher (named for Lord Playfair, the person who publicized it) He was a major figure in the development of...
Engineering Adjustable spanner There are many forms of the adjustable spanner or shifting spanner, from the taper locking spanners which needed a hammer to set the moveable jaw to the size of the nut, to the modern screw adjusted spanner. ...
Edwin Beard Budding (1795-1846)an engineer from Stroud, Gloucestershire, England was the English inventor of the lawnmower (1830) and adjustable spanner. ...
It has been suggested that Old Furnace, Ironbridge be merged into this article or section. ...
Abraham Darby (c. ...
A universal joint A universal joint, U joint, Cardan joint or Hardy-Spicer joint is a joint in a rigid rod that allows the rod to bend in any direction. ...
A portrait, claimed by historian Lisa Jardine to be of Robert Hooke. ...
Diagram of the Newcomen steam engine Thomas Newcomens atmospheric engine, today referred to as a Newcomen steam engine, was the first practical device to harness the power of steam to produce mechanical work. ...
Thomas Newcomen (baptised February 24, 1664; died August 5, 1729) was a blacksmith, plumber, and tinsmith by trade, and a baptist lay preacher by calling. ...
James Pickard was an English inventor. ...
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Frederick William Lanchester (October 23, 1868 - March 8, 1946) was an English polymath and engineer who made important contributions to automotive engineering, aerodynamics and co-invented the field of operations research. ...
Conventional metalworking lathe Lathe exercise In woodturning, metalworking, metal spinning, and glassworking, a lathe is a machine tool which spins a block of material so that when abrasive, cutting, or deformation tools are applied to the block, it can be shaped to produce an object which has symmetry about an...
Henry Maudslay. ...
Food Birds Custard Birds Custard is the brand-name given to (and original version of) a cornflour-based powder that, when mixed with milk, thickens to form a custard-like sauce. ...
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This article or section does not cite its references or sources. ...
John Montagu, 4th Earl of Sandwich, 1783, by Sir Thomas Gainsborough John Montagu, 4th Earl of Sandwich (3 November 1718 â 3 April 1792) succeeded his grandfather, Edward, the 3rd Earl, in the earldom in 1729. ...
Household appliances Dysons Ballbarrow The ballbarrow was a type of wheelbarrow designed by James Dyson and released in 1974 in the United Kingdom. ...
Dyson vacuum cleaner. ...
A cat flap in action. ...
Sir Isaac Newton, President of the Royal Society, (4 January 1643 â 31 March 1727) [OS: 25 December 1642 â 20 March 1727] was an English mathematician, physicist, astronomer, alchemist, and natural philosopher who is generally regarded as one of the greatest scientists and mathematicians in history. ...
For transportation of a baby or toddler there are special vehicles, special car seats, and devices for carrying. ...
Owen Mclaren MBE (died April 1978), inventor of the collapsible baby buggy. ...
This article is being considered for deletion in accordance with Wikipedias deletion policy. ...
Fire extinguisher A fire extinguisher is a device used to put out a fire, often in an emergency situation. ...
Captain George William Manby (born November 28, 1765 in Denver; died November 18, 1854 in Great Yarmouth) was the inventor of an apparatus for saving life from shipwrecks. ...
A lawn mower, alternately spelled lawnmower, is a device which by means of one or more revolving blades is used to cut grass or other plants to an even length. ...
Edwin Beard Budding (1795-1846)an engineer from Stroud, Gloucestershire, England was the English inventor of the lawnmower (1830) and adjustable spanner. ...
A bunch of rubber bands A rubber band (in some regions known as a binder, elastic or lacker band or gumband (Aus. ...
Stephen Perry was a 19th century British inventor and businessman. ...
The light bulb is one of the most significant inventions in the history of the human race, illuminating the darkness of the evening and bringing light indoors at all times in order focus on the task at hand. ...
This article needs cleanup. ...
Industrial processes Bessemer converter, schematic diagram The Bessemer process was the first inexpensive industrial process for the mass-production of steel from molten pig iron. ...
Henry Bessemer (1813-1898) Sir Henry Bessemer (January 19, 1813 â March 15, 1898), English engineer, was born at Charlton near Hitchin in Hertfordshire. ...
// The Hydraulic Press The hydraulic presses are capable of pressure at the head of 2,000 tons, and can cold form metal. ...
Joseph Bramah (1748 - December 9, 1814), born Stainborough,Yorkshire, England. ...
Parkesine is the trade-name for the first man-made plastic. ...
The first Celluloids were invented in Birmingham England by Alexander Parkes although he did not live to see their full impact on film. ...
Sampling fast set Portland cement Portland cement is the most common type of cement in general usage, as it is a basic ingredient of concrete, mortar and plaster. ...
Joseph Aspdin (1788 – 20 March 1855) was an English mason, bricklayer and inventor who patented Portland cement on 21 October 1824. ...
Sheffield plate is a layered combination of silver and copper that was used for many years to produce larger silver goods such as serving trays and teapots. ...
Thomas Boulsover (1705–1788), Sheffield cutler and the inventor of Sheffield Plate, was born in what is now the Ecclesfield district of the city and died at his home at Whiteley Wood Hall, on the River Porter. ...
The water frame is an extension of the spinning frame; both of which are credited to Richard Arkwright. ...
Richard Arkwright Sir Richard Arkwright (23 December 1732 â 3 August 1792) was an Englishman credited with the spinning frame â later renamed the water frame following the transition to water power. ...
Medical To meet Wikipedias quality standards, this article or section may require cleanup. ...
For other uses, see Cataract (disambiguation). ...
Sir (Nicholas) Harold (Lloyd) Ridley (10 July 1906, Kibworth Harcourt, Leicestershire â 25 May 2001, Salisbury, Wiltshire) was a British ophthalmologist who pioneered artificial intraocular lens transplant surgery for cataract patients. ...
Military Congreve rocket from Congreves original work The Congreve Rocket was a British weapon designed by William Congreve in 1804. ...
William Congreve Sir William Congreve (May 20, 1772-May 16, 1828), was an English inventor and rocket pioneer. ...
High explosive squash head (HESH) is a type of explosive ammunition designed to defeat tank armour. ...
Sir Charles Dennistoun Burney, was a British aeronautical engineer and private inventor. ...
In 1718 in London, England, lawyer James Puckle demonstrated his new invention, the Puckle Gun, a tripod-mounted, single-barreled flintlock weapon using a revolving cylinder. ...
James Puckle (1667 - 1724) was a British inventor who developed what he called the Puckle Gun, a multi-shot rifle capable of firing 9 rounds before being reloaded. ...
Shrapnel is the term used to describe the spherical shot or musket balls dispersed when a shrapnel shell bursts. ...
Henry Shrapnel (1761 - March 13, 1842) was a British Army officer and inventor Henry Shrapnel was born in Wiltshire, England. ...
Mining Davy lamp The Davy lamp is a candle containing safety lamp devised in 1815 by Humphry Davy. ...
Sir Humphry Davy. ...
The Geordie lamp was invented by George Stephenson in 1815 as a solution to explosions due to firedamp in coal mines. ...
George Stephenson George Stephenson (9 June 1781 â 12 August 1848) was an English mechanical engineer who designed a famous and historically important steam-powered locomotive named Rocket and is known as the Father of British Steam Railways. The Victorians considered him a great example of diligent application and thirst for...
Musical instruments English concertina made by Wheatstone around 1920 A concertina, like the various accordions, is a member of the free-reed family of instruments. ...
Charles Wheatstone Sir Charles Wheatstone (February 6, 1802 - October 19, 1875) was the British inventor of many innovations including the English concertina the Stereoscope an early form of microphone the Playfair cipher (named for Lord Playfair, the person who publicized it) He was a major figure in the development of...
Photography Many ambrotypes were made by unknown photographers, such as this American example of a small girl holding a flower, circa 1860. ...
Frederick Scott Archer (1813-1857) invented the photographic collodion process which preceded the modern gelatin emulsion. ...
The Calotype was an early photographic process introduced in 1841 by William Fox Talbot, using paper sheets covered with silver chloride. ...
William Fox Talbot William Henry Fox Talbot (February 11, 1800 - September 17, 1877) was one of the first photographers and made major contributions to the photographic process. ...
The collodion process is an early photographic process which gave way in the late 19th century to todays gelatin emulsion process. ...
Stereo card view of Manhattan, c. ...
Charles Wheatstone Sir Charles Wheatstone (February 6, 1802 - October 19, 1875) was the British inventor of many innovations including the English concertina the Stereoscope an early form of microphone the Playfair cipher (named for Lord Playfair, the person who publicized it) He was a major figure in the development of...
Science A microscope (Greek: micron = small and scopos = aim) is an instrument for viewing objects that are too small to be seen by the naked or unaided eye. ...
A portrait, claimed by historian Lisa Jardine to be of Robert Hooke. ...
An electrical generator is a device that produces electrical energy from a mechanical energy source. ...
Michael Faraday from a photograph by John Watkins, British Library [1] Michael Faraday, FRS (September 22, 1791 â August 25, 1867) was a British chemist and physicist (he considered himself a natural philosopher) who contributed significantly to the fields of electromagnetism and electrochemistry. ...
It has been suggested that Tangent galvanometer be merged into this article or section. ...
William Sturgeon (May 22, 1783 - December 4, 1850) was an English physicist and inventor who made the first electromagnets. ...
Image of a small dog taken in mid-infrared (thermal) light (false color) Infrared (IR) radiation is electromagnetic radiation of a wavelength longer than that of visible light, but shorter than that of radio waves. ...
Sir Wilhelm Friedrich Herschel, FRS KH (November 15, 1738 â August 25, 1822) was a German-born British astronomer and composer who became famous for discovering the planet Uranus. ...
The highly sensitive Marsh test is used to detect arsenic in food or stomach contents. ...
General Name, Symbol, Number arsenic, As, 33 Chemical series metalloids Group, Period, Block 15, 4, p Appearance metallic gray Atomic mass 74. ...
James Marsh (September 2, 1794- June 21, 1846) was a chemist who invented the Marsh test for detecting arsenic. ...
Newtonian Telescope The Newtonian telescope is a type of reflecting telescope invented by the British scientist Sir Isaac Newton (1643-1727), using a parabolic primary mirror and a flat diagonal secondary mirror. ...
Sir Isaac Newton, President of the Royal Society, (4 January 1643 â 31 March 1727) [OS: 25 December 1642 â 20 March 1727] was an English mathematician, physicist, astronomer, alchemist, and natural philosopher who is generally regarded as one of the greatest scientists and mathematicians in history. ...
External, internal, and depth micrometers A micrometer is a widely used device in mechanical engineering for precisely measuring thickness of blocks, outer and inner diameters of shafts and depths of slots. ...
Sir William Gascoigne (c. ...
Henry Maudslay. ...
The Sinclair Executive was Clive Sinclairs first venture into the pocket calculator market. ...
A basic arithmetic calculator. ...
Sir Clive Marles Sinclair (born July 30, 1940), is a British entrepreneur and inventor of, among other things, the worlds first pocket calculator, in 1962 and the beloved ZX Spectrum computer in 1982. ...
The slide rule (often nicknamed a slipstick) is a mechanical analog computer, consisting of calibrated strips, usually a fixed outer pair and a movable inner one, with a sliding window called the cursor. ...
William Oughtred William Oughtred (March 5, 1575 â June 30, 1660) was an English mathematician. ...
Coumarin is a chemical compound found in many plants, notably in high concentration in the tonka bean, woodruff, and bison grass. ...
Perfume is a mixture of fragrant essential oils and aroma compounds, fixatives, and solvents used to give the human body, objects, and living spaces a pleasant smell. ...
Cinnamic acid Cinnamic acid has the formula C6H5CHCHCOOH and is an odorless white crystalline acid, which is slightly soluble in water. ...
The Perkin reaction is a chemical reaction developed by William Perkin that can be used to make cinnamic acids by the aldol condensation of aromatic aldehydes and acid anhydrides in the presence of an alkali salt of the acid. ...
Sir William Henry Perkin (March 12, 1838 â July 14, 1907) was an English chemist best known for his discovery, at the age of 18, of the first aniline dye, mauveine. ...
Transport Railways Locomotives The Blucher was an early railway locomotive built in 1814 by George Stephenson for the Killingworth Colliery. ...
George Stephenson George Stephenson (9 June 1781 â 12 August 1848) was an English mechanical engineer who designed a famous and historically important steam-powered locomotive named Rocket and is known as the Father of British Steam Railways. The Victorians considered him a great example of diligent application and thirst for...
The engine as seen from the front Puffing Billy was an early steam locomotive, constructed in 1812-1814 by engineer William Hedley, enginewright Jonathan Forster and blacksmith Timothy Hackworth for Christopher Blackett, the owner of Wylam Colliery near Newcastle upon Tyne. ...
William Hedley was the inventor of an early steam locomotive, Puffing Billy. ...
Locomotion No. ...
Statue of Robert Stephenson at Euston Station, London Robert Stephenson FRS (October 16, 1803âOctober 12, 1859) was an English civil engineer. ...
The Sans Pareil was a locomotive built by Timothy Hackworth which took part in the 1829 Rainhill Trials on the Liverpool and Manchester Railway, held to select a builder of locomotives. ...
Timothy Hackworth (December 22, 1786 – July 7, 1850) was a steam locomotive mechanical engineer who lived in Shildon, County Durham, England and worked with George Stephenson on the Stockton and Darlington Railway. ...
Stephensons Rocket was an early steam locomotive of 0-2-2 wheel arrangement, built by George and Robert Stephenson in 1829. ...
George Stephenson George Stephenson (9 June 1781 â 12 August 1848) was an English mechanical engineer who designed a famous and historically important steam-powered locomotive named Rocket and is known as the Father of British Steam Railways. The Victorians considered him a great example of diligent application and thirst for...
Statue of Robert Stephenson at Euston Station, London Robert Stephenson FRS (October 16, 1803âOctober 12, 1859) was an English civil engineer. ...
Other railway developments The displacement lubricator is an automatic oil lubricator for steam engines first introduced in the United Kingdom in 1860 by John Ramsbottom. ...
A safety valve is an automatic valve mechanism for the release of a gas from a boiler or other system when the pressure or temperature exceeds preset limits. ...
A track pan (US English) or water trough (Commonwealth English) is a long trough filled with water, lying along a stretch of railroad track between the rails. ...
Piston ring A piston ring is an open-ended ring that fits into a groove on the outer diameter of the piston. ...
John Ramsbottom (11 September 1814 â 20 May 1897) was an English mechanical engineer who created many inventions for railways, including the Ramsbottom safety valve, the displacement lubricator, and the water trough. ...
Roads Invented by Frank Bowden, a bowden cable is a type of flexible cable used to transmit mechanical force or energy by the movement of an inner cable (most commonly of steel or stainless steel) relative to a hollow outer cable housing. ...
A white cats eye; the road runs left to right. ...
Percy Shaw was born in Halifax in West Yorkshire in 1890, the son of Jimmy Shaw, a dyerâs labourer, who worked at a local mill. ...
U.S. M60 Patton tank. ...
Sir George Cayley Sir George Cayley, 6th Baronet (27 December 1773â15 December 1857) was an exuberant polymath from Brompton-by-Sawdon, near Scarborough in Yorkshire. ...
A Hansom cab adding character to the filming of a costume drama. ...
A Hansom cab. ...
A three-point seat belt. ...
Sinclair C5 Launched in Britain on 10 January 1985, the Sinclair C5 was a three-wheeled personal transport battery electric vehicle invented by Sir Clive Sinclair. ...
Sir Clive Marles Sinclair (born July 30, 1940), is a British entrepreneur and inventor of, among other things, the worlds first pocket calculator, in 1962 and the beloved ZX Spectrum computer in 1982. ...
A close-up view of some freshly-laid tarmac. ...
E. Purnell Hooley is the inventor of Tarmac. ...
Sea A U.S. Navy hovercraft attached to the Amphibious assault ship Kearsarge (LHD-3) A Russian Project 1232. ...
Christopher Sydney Cockerell (June 4, 1910 â June 1, 1999) was a British engineer, inventor of the hovercraft. ...
For the 1944 movie, see Lifeboat (film). ...
Lionel Lukin (May 18, 1742 - February 16, 1834, Hythe, Kent, England) is considered by many to have been the inventor of the lifeboat. ...
Resurgam (Latin for I will rise again) was the first sea-going mechanically powered submarine put to sea. ...
George William Garrett (1852-1902) was born at Moss Side in Manchester, England, the son of a Church of England clergyman. ...
The Turbinia Turbinia was the first steam turbine powered steamship, built as an experimental vessel in 1894 and demonstrated dramatically at the Spithead Navy Review in 1897, setting the standard for the next generation of steamships. ...
A rotor of a modern steam turbine, used in a power plant A steam turbine is a mechanical device that extracts thermal energy from pressurized steam, and converts it into useful mechanical work. ...
Paddle steamers - Lucerne-Switzerland Left: original paddlewheel from a paddle steamer on the lake of Lucerne. ...
Sir Charles Algernon Parsons (June 13, 1854 â February 11, 1931) was a Irish engineer, best known for his invention of the steam turbine. ...
This article is about a city in the United Kingdom. ...
Air A Pratt and Whitney turbofan engine for the F-15 Eagle is tested at Robins Air Force Base, Georgia, USA. The tunnel behind the engine muffles noise and allows exhaust to escape. ...
Sir Frank Whittle (June 1, 1907 - August 9, 1996) was a Royal Air Force officer who invented the jet engine in England while Hans von Ohain was inventing the same in Germany. ...
Miscellaneous Map of the world color-coded with areas in blue observing daylight saving time. ...
William Willett (August 10, 1856 - March 4, 1915) is the inventor of Daylight saving time. ...
Meccano is a model construction kit comprising re-usable metal strips, plates, wheels and gears, with nuts and bolts to connect the pieces. ...
Frank Hornby (15 May 1863 — 21 September 1936) invented Meccano around 1901, established Hornby Model Railways in 1920 and launched Dinky Toys in early 1934. ...
References - ^ Tiscali encyclopaedia: Seed drill.
- ^ Account of a Comet, By Mr. Herschel, F. R. S.; Communicated by Dr. Watson, Jun. of Bath, F. R. S., Philosophical Transactions of the Royal Society of London, Volume 71, pp. 492-501
- ^ Gazetteer of Planetary Nomenclature: Planet and Satellite Names and Discoverers.
- ^ About TREVOR BAYLIS the inventor of the windup technology.
- ^ a b From the Monthly Notices of the Royal Astronomical Society 70, 517-526, 645 (Errata) (1910) By Major-General H. P. Babbage.
- ^ a b Turing biography.
- ^ Annals of the History of Computing, Volume 5, Number 3, July 1983 . p239, The Design of Colossus, THOMAS H. FLOWERS.
- ^ Frequently asked questions by the Press - Tim BL.
- ^ History of Home and Game Computers: the good, old 'speccy'.
- ^ The Origin and Evolution of the Anchor Clock Escapement.
- ^ A. R. Hall, "Horology and criticism: Robert Hooke", Studia Copernicana, XVI, Ossolineum, 1978, 261-81
- ^ Longitude clock comes alive (11 March, 2002).
- ^ The Oughtred Society: Slide Rule History.
- ^ The day Percy saw the light!.
- ^ The Waste of Daylight, 1907.
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