Mechanical Engineering

He later furthered his skills by studying mechanical engineering at the University of Pennsylvania

He showed an early aptitude for designing and modifying mechanical devices to turn them into mobile toys

an American mechanical engineer and inventor

In 1955, he and Lu designed the Pluto Platter, the archetype of all modern flying discs.

Manby experimented with mortars, and so invented the Manby Mortar

Johansson invented the gauge block set

He is best known for his invention of the barometer

the Pyréolophore, one of the world's first internal combustion engines

whose most famous invention is the modern ice resurfacer

a pioneer of the automobile industry

began work on a conveyor belt for carrying coal and ore for Thomas Edison

W. O. designed new aluminium alloy pistons and a tuned camshaft for the DFP engine

started work on the first projection planetarium in 1912

a Greek engineer, physicist and writer on mechanics

a German inventor, engineer, and showman

Hero published a well-recognized description of a steam-powered device called an aeolipile

patented the first commercially successful modern ballpoint pen

was a Czech engineer, industrialist and automotive pioneer

He designed the first multi-tubular boiler as used on Stephenson's Rocket.

1796 Joined Boulton and Watt as a mechanic.

he is considered one of founders of Czech mechanics

known as the inventor of a Calculadora Alicia with an internal multiplication table (1878)

The Steam Horse was an early railway steam locomotive constructed by the Butterley Company

a degree in mechanical engineering in 1886

German mechanical engineer who designed automobiles

An automotive engineer by training

was a Czech firearm engineer who applied for over 75 patents

was a Belgian engineer who developed an internal combustion engine in 1859

He received his M.E. degree from Technical University, Budapest

He constructed steam engines, water pumps, a pontoon bridge in Pressburg (1770)

was an American clockmaker

An axial fan is a type of fan that causes gas to flow through it in an axial direction

Cowell studied Mechanical Engineering at Lancaster University

A self-taught engineer, with his brother Charles he invented the first automobile speedometer, which made him rich.

Shen Kuo made improved designs of the armillary sphere, gnomon, sighting tube, and invented a new type of inflow water clock.

Iterative design has long been used in engineering fields.

Designed a vertical cylinder-boring mill for installation at the works of Boulton and Watt.

was a German mechanical engineer

was an iron founder and engineer from Brassó

a Scottish watchmaker and instrument inventor

engine boilers called the Traitement Integral Armand (TIA) water treatment process for steam locomotives

he has the honour of inventing the shearing machine which revolutionized the wool industry in Australia.

Key studied Mechanical Engineering at the University of Nottingham.

contributed to the development of a gas engine that was successfully presented in 1905

was an American mechanical engineer, inventor

The Abalakov thread, also known as a V-thread, A-thread, or 0-thread (zero thread), is an ice protection technique

He drew on his knowledge of engineering and his experience with factory mass production techniques and based his new motorcycle designs around an existing 498cc engine

He was appointed as professor of aerospace and mechanical engineering at Princeton University in 1966.

was an American automotive engineer and inventor

He was a professor of mechanical engineering at Delft University of Technology from 1961 to 1988.

Lorenz's work included the mathematics and physics of refrigeration, the strength of materials, vibrations, fluid dynamics, ballistics and even astrophysics.

1964-81 Professor of Mechanical Engineering, Queen Mary College, University of London

physicist, inventor, and scientific instrument maker

Appold Centrifugal Rotary Pump, which was so prominent a feature

is a Hungarian mechanical engineer and astronaut

Reynaud constructed steam engines at age 13.

MSc in Mechanical Engineering from the Technical University of Rijeka in 1995

He had, from an early period, been an earnest advocate of high-pressure steam

gas engineers, of Vincent Works, Regency-street, Westminster

he ultimately became manager.

The Argand lamp had a sleeve-shaped wick mounted so that air can pass both through the center of the wick and also around the outside of the wick before being drawn into a cylindrical chimney which steadies the flame and improves the flow of air.

developed by Dr. Suh Nam Pyo at MIT, Department of Mechanical Engineering since the 1990s

In manufacturing and mechanical engineering, flatness is an important geometric condition for workpieces and tools.

Bi Sheng (died 1051) was a Chinese artisan and engineer during the Song dynasty (960-1279), who invented the world's first movable type.

An abacus (pl. abaci or abacuses), also called a counting frame, is a hand-operated calculating tool which was used from ancient times, in the ancient Near East, Europe, China, and Russia, until largely replaced by handheld electronic calculators, during the 1980s, with some ongoing attempts to revive their use.

A telescope is a device used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation.

A thermometer is a device that measures temperature (the hotness or coldness of an object). A thermometer has two important elements: (1) a temperature sensor (e.g. the bulb of a mercury-in-glass thermometer or the pyrometric sensor in an infrared thermometer) in which some change occurs with a change in temperature; and (2)

Hans Lipperhey (c. 1570, buried 29 September 1619), also known as Johann Lippershey or simply Lippershey, was a German-Dutch spectacle-maker.

Christopher Latham Sholes (February 14, 1819, February 17, 1890) was an American inventor, newspaper publisher, politician, and Wisconsin pioneer.

A microscope is a laboratory instrument used to examine objects that are too small to be seen by the naked eye.

A ballpoint pen is a pen that dispenses ink (usually in paste form) over a hard ball rolling in its point.

A barometer is a scientific instrument that is used to measure air pressure.

A safety razor is a shaving implement with a protective device positioned between the edge of the blade and the skin.

A longbow is a type of tall bow that makes a long draw possible.

Padlocks are portable locks with a shackle that may be passed through an opening (such as a chain link, or hasp staple) to prevent use, theft, vandalism or harm.

Taqi ad-Din Muhammad ibn Ma'ruf ash-Shami al-Asadi (Arabic: تقي الدين محمد بن معروف الشامي; Ottoman Turkish: تقي الدين محمد بن معروف الشامي السعدي; Turkish: Takiyüddin‎ 1526-1585) was an Ottoman polymath active in Cairo and Constantinople.

In meteorology, an anemometer (from Ancient Greek άνεμος (ánemos) 'wind' and μέτρον (métron) 'measure') is a device that measures wind speed and direction.

A concrete mixer (also cement mixer) is a device that homogeneously combines cement, aggregate (e.g. sand or gravel), and water to form concrete. A typical concrete mixer uses a revolving drum to mix the components.

A periscope is a device for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer's current position.

Ondol (ON-dol; , Korean: 온돌; Hanja: 溫突/溫堗; Korean pronunciation: [on.dol]) or gudeul (구들; [ku.dɯl]) in Korean traditional architecture is underfloor heating that uses direct heat transfer from wood smoke to heat the underside of a thick masonry floor.

An ice resurfacer is a vehicle or hand-pushed device for cleaning and smoothing the surface of a sheet of ice, usually in an ice rink.

A memory typewriter is a typewriter that can hold a limited amount of memory, allowing for text and documents to be retained.

Sure Chill Technology is a cooling technology that is currently being used in medical refrigerators, but is thought to have wider potential in the future for domestic refrigerators and beverage coolers.

A wind vane, weather vane, or weathercock is a type of anemoscope used for showing the direction of the wind.

A Pythagorean cup (also known as a Pythagoras cup, greedy cup, cup of justice, anti greedy goblet or Tantalus cup) is a practical joke device in the form of a drinking cup.

An equatorial ring was an astronomical instrument used in the Hellenistic world to determine the exact moment of the spring and autumn equinoxes.

An armillary sphere (variations are known as spherical astrolabe, armilla, or armil) is a model of objects in the sky (on the celestial sphere), consisting of a spherical framework of rings, centered on Earth or the Sun, that represent lines of celestial coordinate system and other astronomically important features, such as the

Pendolino (from Italian pendolo [ˈpɛndolo] "pendulum", and -ino, a diminutive suffix) is an Italian family of high-speed tilting trains (and non-tilting) used in Italy, Spain, Germany, Poland, Portugal, Slovenia, Finland, the Czech Republic, Slovakia (operated by Czech railways), the UK, the US, Switzerland, China, and Greece.

The DRG Class SVT 877 Hamburg Flyer, sometimes also Flying Hamburger or in German Fliegender Hamburger, was Germany's first fast diesel train, and is credited with establishing the fastest regular railway connection in the world in its time.

The Hydraulis of Dion (Ancient Greek: Ὕδραυλις τοῦ Δίου, romanized: Húdraulis toû Díou) is a unique exhibit of the Archaeological Museum of Dion.

The InterCity 125 (originally Inter-City 125) or High Speed Train (HST) is a diesel-powered high-speed passenger train built by British Rail Engineering Limited between 1975 and 1982. A total of 95 sets were produced, each comprising two Class 43 power cars, one at each end, and a rake of seven or eight Mark 3 coaches.

In films and videos, an intertitle, more commonly known as a title card, is a piece of filmed, printed text edited into the midst of (hence, inter-) the photographed action at various points.

A blech (from the Yiddish word בלעך (blekh) meaning "tin" or "sheet metal", alternatively from Middle High German or Standard German "Blech", meaning tin or sheet metal) is a metal sheet used by many observant Jews to cover stovetop burners (and for some, the cooker's knobs and dials) on Shabbat, as part of the precautions

The Barcelona astrolabe is the oldest astrolabe with Carolingian characters that has survived in the Christian Occident.

The shadow square, also known as an altitude scale, was an instrument used to determine the linear height of an object, in conjunction with the alidade, for angular observations.

The British Rail Class 55, also known as a Deltic, or English Electric Type 5, is a class of diesel locomotive built in 1961 and 1962 by English Electric for British Railways.

The torquetum or turquet is a medieval astronomical instrument for taking and converting measurements made in three sets of coordinates: horizon, equatorial, and ecliptic.

In astronomy, a planisphere () is a star chart analog computing instrument in the form of two adjustable disks that rotate on a common pivot.

A reflecting telescope (also called a reflector) is a telescope that uses a single or a combination of curved mirrors that reflect light and form an image.

An optical spectrometer (spectrophotometer, spectrograph or spectroscope) is an instrument used to measure properties of light over a specific portion of the electromagnetic spectrum, typically used in spectroscopic analysis to identify materials.

A flashback arrestor or flash arrestor is a gas safety device most commonly used in oxy-fuel welding and cutting to stop the flame or reverse flow of gas back up into the equipment or supply line.

Gas metal arc welding (GMAW), sometimes referred to by its subtypes metal inert gas (MIG) and metal active gas (MAG) is a welding process in which an electric arc forms between a consumable MIG wire electrode and the workpiece metal(s), which heats the workpiece metal(s), causing them to fuse (melt and join).

A horseshoe is a piece of equestrian equipment that protects a horse hoof from wear.

A quern-stone is a stone tool for hand-grinding a wide variety of materials, especially for various types of grains.

A stirrup is one of a pair of light frames or rings attached to the saddle of a riding animal (usually a horse or other equine, such as a mule) by a strap (often called a stirrup leather) that holds its rider's foot, aiding in their mounting and support.

A bolt is an externally helical threaded fastener capable of being tightened or released by a twisting force (torque) to a matching nut.

A paper clip (or paperclip) is a tool used to hold sheets of paper together, usually made of steel wire bent to a looped shape (though some are covered in plastic).

A kaleidoscope () is an optical instrument with two or more reflecting surfaces (or mirrors) tilted to each other at an angle, so that one or more (parts of) objects on one end of these mirrors are shown as a symmetrical pattern when viewed from the other end, due to repeated reflection.

A frisbee (pronounced FRIZ-bee), also called a flying disc or simply a disc, is a gliding toy or sporting item generally made of injection-molded plastic and roughly 20 to 25 centimetres (8 to 10 in) in diameter with a pronounced lip.

A trampoline is a device consisting of a piece of taut, strong fabric stretched between a steel frame often using many coiled springs.

The repeating crossbow (Chinese: 連弩; pinyin: Lián Nǔ), also known as the repeater crossbow, and the Zhuge crossbow (Chinese: 諸葛弩; pinyin: Zhūgě nǔ, also romanized Chu-ko-nu) due to its association with the Three Kingdoms-era strategist Zhuge Liang (181-234 AD), is a crossbow invented during the Warring States period in China

A micrometer ( my-KROM-it-ər), sometimes known as a micrometer screw gauge (MSG), is a device incorporating a calibrated screw for accurate measurement of the size of components.

A revolving door typically consists of three or four doors that hang on a central shaft and rotate around a vertical axis within a cylindrical enclosure.

Innocenzo Vincenzo Bartolomeo Luigi Carlo Manzetti (Italian pronunciation: [innoˈtʃɛntso manˈdzetti]; 17 March 1826-15 March 1877) was an Italian inventor born in Aosta.

Simon Ritter von Stampfer (26 October 1792 (according to other sources 1790)), in Windisch-Matrei, Archbishopric of Salzburg, today called Matrei in Osttirol, Tyrol, 10 November 1864 in Vienna) was an Austrian mathematician, surveyor and inventor.

Charles Perkins Strite (February 27, 1878, October 18, 1956) was an American inventor known for inventing the pop-up toaster.

Johann Alois Senefelder (born Alois Johann Nepomuk Franz Senefelder; 6 November 1771-26 February 1834) was a German actor and playwright who invented the printing technique of lithography in the 1790s.

William Oughtred ( AWT-urd;5 March 1574-30 June 1660), also Owtred or Uhtred, was an English mathematician and Anglican clergyman.

John Jacob Loud (November 2, 1844, August 10, 1916) was an American lawyer and inventor best known for inventing the ballpoint pen.

King Camp Gillette (January 5, 1855, July 9, 1932) was an American businessman who invented a bestselling safety razor and was the founder of the Gillette razor company.

Theophilus Van Kannel (July 1851, December 24, 1919) was an American inventor, known for inventing the revolving door, patented on August 7, 1888.

A crane is a machine used to move materials both vertically and horizontally, utilizing a system of a boom, hoist, wire ropes or chains, and sheaves for lifting and relocating heavy objects within the swing of its boom.

In woodworking and construction, a nail is a small object made of metal (or wood, called a tree nail or "trunnel") which is used as a fastener, as a peg to hang something, or sometimes as a decoration.

A robotic arm is a type of mechanical arm, usually programmable, with similar functions to a human arm; the arm may be the sum total of the mechanism or may be part of a more complex robot.

Inkjet printing is a type of computer printing that recreates a digital image by propelling very fine droplets of ink onto various substrates such as paper, plastic, wood and metal.

German mechanical engineers

A mathematician, philosopher, inventor and mechanical engineer, Babbage originated the concept of a digital programmable computer.

20th-century American mechanical engineers

19th-century American mechanical engineers

Henry Laurence Gantt (; May 20, 1861, November 23, 1919) was an American mechanical engineer and management consultant who worked in the development of scientific management.

Rudolf Christian Karl Diesel (English: , German: [ˈʁuːdɔlf ˈkʀɪsti̯an kaʁl ˈdiːzl̩] ; 18 March 1858-29 September 1913) was a German inventor and mechanical engineer.

19th-century American mechanical engineers

Robert William Kearns (March 10, 1927, February 9, 2005) was an American mechanical engineer, educator, and inventor who invented the most common intermittent windshield wiper systems used on most automobiles from 1969 to the present.

Liang Lingzan (simplified Chinese: 梁令瓒; traditional Chinese: 梁令瓚; pinyin: Liáng Lìngzàn; Wade-Giles: Liang Ling-Tsan) was a Chinese artist, astronomer, inventor, mechanical engineer and politician of the Kaiyuan era during the Tang dynasty.

19th-century American mechanical engineers

Andrew Meikle (5 May 1719-27 November 1811) was a Scottish mechanical engineer credited with inventing the threshing machine, a device used to remove the outer husks from grains of wheat.

English mechanical engineers

Fasteners

Fasteners

Mechanisms (engineering)

Mechanical engineering

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Mechanisms (engineering)

Engine components

Engine components

Mechanisms (engineering)

Mechanisms (engineering)

Mechanisms (engineering)

Engine components

Pumps

Mechanical engineering

Mechanisms (engineering)

Design engineering

Continuum mechanics

Cybersecurity engineering

Heat pumps

Machine guns

Protective gear

Gears

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Bearings (mechanical)

Hydraulic machinery

Watches

Water clocks

Clocks

Steam engines

Diesel engines

Clocks

Agricultural machinery

Agricultural machinery

Agricultural machinery

Tunnel boring machines

Building engineering

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Agricultural machinery

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Hydraulic engineering

Rocket engines

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Antikythera Mechanism

Mechanical calculators

Combustion engine

Engine technology

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Mechanical devices using viscosity

Vacuum pumps

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Building engineering

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Engineering concepts

Engine technology

George Stephenson (9 June 1781-12 August 1848) was an English civil engineer and mechanical engineer.

Karl von Terzaghi (2 October 1883-25 October 1963) was an Austrian mechanical engineer, geotechnical engineer, and geologist known as the "father of soil mechanics and geotechnical engineering".

Air conditioning can be achieved using a mechanical air conditioner or through other methods, such as passive cooling and ventilative cooling.

A piano is a keyboard instrument that produces sound when its keys are pressed, activating an action mechanism where hammers strike strings.

An elevator (North American English, Philippine English) or lift (Commonwealth English except Canada) is a machine that vertically transports people or freight between levels.

A typewriter is a mechanical or electromechanical machine for typing characters.

A phonograph, later called a gramophone, and since the 1940s a record player, or more recently a turntable, is a device for the mechanical and analogue reproduction of sound.

It consists of a motor-driven chain of individually linked steps on a track which cycle on a pair of tracks which keep the step tread horizontal.

A vending machine is an automated machine that dispenses items such as snacks, beverages, cigarettes, and lottery tickets to consumers after cash, a credit card, or other forms of payment are inserted into the machine or payment is otherwise made.

A wheelbarrow is a small hand-propelled load-bearing vehicle, usually with just one wheel, designed to be pushed and guided by a single person using two handles at the rear.

A cash register, sometimes called a till or automated money handling system, is a mechanical or electronic device for registering and calculating transactions at a point of sale.

A windmill is a machine operated by the force of wind acting on vanes or sails to mill grain (gristmills).

Humidity measurement instruments usually rely on measurements of some other quantities, such as temperature, pressure, mass, and mechanical or electrical changes in a substance as moisture is absorbed.

The device may be electronic, mechanical, or a combination of the two (electromechanical).

In contrast to the still camera, which captures a single image at a time, the movie camera takes a series of images by way of an intermittent mechanism or by electronic means; each image is a frame of film or video.

It was a common powerful siege engine until the advent of gunpowder.

Now universally fitted to motor vehicles, they started to be available as options in the early 20th century, and as standard equipment from about 1910 onwards.

The Eclipse windmill was one of the more successful designs of windmill used to pump water in the nineteenth century United States.

The Biblio-Mat is a random antiquarian book vending machine located at The Monkey's Paw bookstore in Toronto, Canada designed by visual artist Craig Small.

Machining is a form of subtractive manufacturing, which utilizes machine tools, in contrast to additive manufacturing (e.g. 3D printing), which uses controlled addition of material.

A steamroller (or steam roller) is a form of road roller, a type of heavy construction machinery used for leveling surfaces, such as roads or airfields, that is powered by a steam engine.

FoldiMate, Inc. was a California-based company developing a robotic laundry-folding machine founded in 2012.

SolaWash is an automated and mobile hand washing machine powered by solar panels.

A wheel is a rotating component (typically circular in shape) intended to turn on an axle bearing.

The water organ or hydraulic organ (Greek: ὕδραυλις = ὕδωρ + αυλός / αυλη) (early types are sometimes called hydraulos, hydraulus or hydraula) is a type of pipe organ blown by air, where the power source pushing the air is derived by water from a natural source (e.g. by a waterfall) or by a manual pump.

A horse mill (or in the UK commonly called a horse-gin - short for "engine") is a mill, sometimes used in conjunction with a watermill or windmill, that uses a horse engine as the power source.

Dating to the second half of the 3rd century AD, the sawmill is considered the earliest known machine to combine a crank with a connecting rod to form a crank-slider mechanism.

The polybolos was not a crossbow since it used a torsion mechanism, drawing its power from twisted sinew-bundles.

An astronomical clock, horologium, or orloj is a clock with special mechanisms and dials to display astronomical information, such as the relative positions of the Sun, Moon, zodiacal constellations, and major planets.

Before the invention and adoption of the Fourdrinier machine and other types of paper machine that use an endless belt, all paper in a paper mill was made by hand, one sheet at a time, by specialized laborers.

Produced by a partnership of three companies, ALCO (American Locomotive Company) built the chassis and running gear, General Electric the generator, motors and controls, and Ingersoll Rand the diesel engine.

The Sharopoyezd (Russian: Шаропоезд; literally "ball-bearing train"), also known as ShELT (Russian: ШЭЛТ, acronym for шаро-электро-лотковый транспорт, "ball-bearing electric trough transport") was a Soviet attempt to develop a high-speed rail system in the 1930s.

When McKeen Company of Omaha, Nebraska, U.S.A., first unveiled the car in 1905, the McKeen was among the first engines with a distillate-fueled motor.

The railmotors of J. Weitzer Engine- & Waggon-Building & Iron Casting Joint-stock Company (Hu.: Weitzer János Gép,- Waggongyár és Vasöntöde Részvénytársaság) were Europe's first self-propelled railcars with internal combustion engine built in considerable numbers.

A gas turbine is a complete continuous-flow internal combustion engine in which air is compressed, fuel is burned in the compressed air, and the resulting hot gas expands through a turbine.

A flywheel is a mechanical device that uses the conservation of angular momentum to store rotational energy, a form of kinetic energy proportional to the product of its moment of inertia and the square of its rotational speed.

A clutch is a mechanical device that allows an output shaft to be disconnected from a rotating input shaft.

A car, or an automobile, is a motor vehicle with wheels.

A printing press is a machine that applies pressure to transfer ink onto a surface made of paper, cloth, or a similar material.

A can opener (North American and Australian English) or tin opener (British English) is a mechanical device used to open metal tin cans.

A large digital version of a stopwatch designed for viewing at a distance, as in a sports stadium, is called a stop clock.

An alarm clock or alarm is a clock that is designed to alert an individual or group of people at a specified time.

The height of the cut grass may be fixed by the mower's design but generally is adjustable by the operator, typically by a single master lever or by a mechanism on each of the machine's wheels.

A vernier scale ( VUR-nee-ər), named after Pierre Vernier, is a visual aid to take an accurate measurement reading between two graduation markings on a linear scale by using mechanical interpolation, which increases resolution and reduces measurement uncertainty by using vernier acuity.

A clothes dryer (tumble dryer, drying machine, drying device, or simply dryer) is a powered household appliance that is used to remove moisture from a load of clothing, bedding and other textiles, usually after they are washed in the washing machine.

A snowmobile, also known as a snowmachine (chiefly Alaskan), motor sled (chiefly Canadian), ski-doo (Ontario and Quebec, dated proprietary eponym), motor sledge, skimobile, snow scooter, or simply a sled is a motorized vehicle designed for winter travel and recreation on snow.

An hourglass (or sandglass, sand timer, or sand clock) is a device used to measure the passage of time.

A movie projector (or film projector) is an opto-mechanical device for displaying motion picture film by projecting it onto a screen.

A tachometer (revolution-counter, tach, rev-counter, RPM gauge) is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine.

Power steering is a system for reducing a driver's effort to turn a steering wheel of a motor vehicle, by using a power source to assist steering.

He was a pioneer of internal-combustion engines and automobile development.

He was the first to patent the four-stroke engine in 1862, but he did not build one and the idea was subsequently developed by Nicolaus Otto and other engineers.

He invented the first commercially used steam-powered device, a steam pump which is often referred to as the "Savery engine".

A camera is an instrument used to capture and store images and videos, either digitally via an electronic image sensor, or chemically via a light-sensitive material such as photographic film.

A firearm is any type of gun that shoots projectiles using high explosive pressure generated from combustion (deflagration) of chemical propellant, most often black powder in antique firearms and smokeless powder in modern firearms.

A screw is an externally helical threaded fastener capable of being tightened or released by a twisting force (torque) to the head.

In 1288, Yuan dynasty troops are recorded to have used hand cannons in combat, and the earliest extant cannon bearing a date of production comes from the same period.

Crossbows avoid these potential problems by having trigger-released cocking mechanisms to maintain the tension on the string once it has been spanned, drawn, into its ready-to-shoot position, allowing a crossbow to be carried cocked and ready and affording its user time to aim it.

Sir Hiram Stevens Maxim (5 February 1840-24 November 1916) was an American-born British inventor best known as the creator of the first automatic machine gun, the Maxim gun.

Bartolomeo Cristofori di Francesco (Italian pronunciation: [bartoloˈmɛːo kriˈstɔːfori di franˈtʃesko]; May 4, 1655, January 27, 1731) was an Italian maker of musical instruments famous for inventing the piano.

In 1853, he invented a safety device that prevents elevators from falling if the hoisting cable fails.

Filling the reservoir with ink may be achieved manually, via the use of an eyedropper or syringe, or via an internal filling mechanism that creates suction (for example, through a piston mechanism) or a vacuum to transfer ink directly through the nib into the reservoir.

A catapult is a ballistic device used to launch a projectile at a great distance without the aid of gunpowder or other propellants, particularly various types of ancient and medieval siege engines.

Some of their innovations, such as those that involved fluid pressure variations and valves, remained unsurpassed until the modern period.

Due to the hardness of refractory materials used, investment casting can produce products with exceptional surface qualities, which can reduce the need for secondary machine processes.

Depending on the type of metal being cast, a hot- or cold-chamber machine is used.

A pressure cooker is a sealed vessel used for cooking food with the use of high pressure steam and water or a water-based liquid, in a process called pressure cooking.

A bulldozer or dozer (also called a crawler or Track-type Tractor) is a large tractor equipped with a metal blade at the front for pushing material (soil, sand, snow, rubble, or rock) during construction work.

A forklift (also called industrial truck, lift truck, jitney, hi-lo, fork truck, fork hoist, and forklift truck) is a powered industrial truck used to lift and move materials over short distances.

Gyroscopes can be used to construct gyrocompasses, which complement or replace magnetic compasses (in ships, aircraft and spacecraft, vehicles in general), to assist in stability (bicycles, motorcycles, and ships; known as gyrostabilization) or be used as part of an inertial guidance system.

In 1815, the German inventor Johann Maelzel patented a mechanical, wind-up metronome as a tool for musicians, under the title "Instrument/Machine for the Improvement of all Musical Performance, called Metronome".

Ferdinand Porsche (3 September 1875-30 January 1951) was an Austrian-German automotive engineer and founder of the Porsche AG. He is best known for creating the first gasoline-electric hybrid vehicle (Lohner-Porsche), the Volkswagen Beetle, the Auto Union racing cars, the Mercedes-Benz SS/SSK, and several other important developments and Porsche automobiles.

An orrery ( ) is a mechanical model of the Solar System that illustrates or predicts the relative positions and motions of the planets and moons, usually according to the heliocentric model.

Although its exact nature is unclear, the accounts of ancient historians seem to describe it as a sort of crane equipped with a grappling hook that was able to lift an attacking quinquereme by the bow.

A food steamer or steam cooker is a small kitchen appliance used to cook or prepare various foods with steam heat by means of holding the food in a closed vessel reducing steam escape.

A steam cannon is a cannon that launches a projectile using only heat and water, or using a ready supply of high-pressure steam from a boiler.

A modern hand grenade generally consists of an explosive charge ("filler"), a detonator mechanism, an internal striker to trigger the detonator, and an arming safety secured by a transport safety.

The fire lance (simplified Chinese: 火枪; traditional Chinese: 火槍; pinyin: huǒqiāng; lit. 'fire spear') was a gunpowder weapon used by lighting it on fire, and is the ancestor of modern firearms.

The ALCO RS-1 is a 4-axle diesel-electric locomotive built by Alco-GE between 1941 and 1953 and the American Locomotive Company from 1953 to 1960.

The 4-minute difference between the solar day and sidereal day requires a correction of this giant clock based on the date of observation, and nocturnal helps to apply this correction.

The Union Pacific Railroad's M-10003, M-10004, M-10005, and M-10006 were four identical streamlined diesel-electric power car trainsets delivered in May, June, and July 1936 from Pullman-Standard, with prime movers from the Winton Engine Corporation of General Motors and General Electric generators, control equipment and traction motors.

The Shaker tilting chair, named for its ball bearing or ball and socket button mechanism assembled to the back two legs of a wooden chair, allowed a person to lean back in the chair without slipping or scraping the floor.

The Union Pacific Big Boy is a type of simple articulated 4-8-8-4 steam locomotive manufactured by the American Locomotive Company (ALCO) in Schenectady, New York, between 1941 and 1944 and operated by the Union Pacific Railroad in revenue service until July 1959.

The refracting telescope design was originally used in spyglasses and astronomical telescopes but is also used for long-focus camera lenses.

Most tires, such as those for automobiles and bicycles, are pneumatically inflated structures, providing a flexible cushion that absorbs shock as the tire rolls over rough features on the surface.

A railway air brake is a railway brake power braking system with compressed air as the operating medium.

Newer side-impact airbag modules consist of compressed-air cylinders that are triggered in the event of a side-on vehicle impact.

A disc brake is a type of brake that uses the calipers to squeeze pairs of pads against a disc (sometimes called a [brake] rotor) to create friction.

Sometimes a thermostat combines both the sensing and control action elements of a controlled system, such as in an automotive thermostat.

Compressed air dryers are types of filter systems that are specifically designed to remove water in compressed air.

One plate holds an object of unknown mass (or weight), while objects of known mass or weight, called weights, are added to the other plate until mechanical equilibrium is achieved and the plates level off, which happens when the masses on the two plates are equal.

The term goniometry derives from two Greek words, γωνία (gōnía) 'angle' and μέτρον (métron) 'measure'. The protractor is a commonly used type in the fields of mechanics, engineering, and geometry.

A fishing reel is a hand-cranked reel used in angling to wind and stow fishing line, typically mounted onto a fishing rod, but may also be used on compound bows or crossbows to retrieve tethered arrows when bowfishing.

An air horn is a pneumatic device designed to create a loud noise for signaling purposes.

In its traditional form, a corkscrew simply consists of a pointed metallic helix (often called the "worm") attached to a handle, which the user screws into the cork and pulls to extract it.

Developed from earlier Greek weapons, it relied on different mechanics, using two levers with torsion springs instead of a tension prod (the bow part of a modern crossbow).

An instant camera is a camera which uses self-developing film to create a chemically developed print shortly after taking the picture.

A chainsaw comprises an engine, a drive mechanism, a guide bar, a cutting chain, a tensioning mechanism, and safety features.

It is fitted with a drill bit for making holes, or a screwdriver bit for securing fasteners.

Medium-sized centrifuges are used in washing machines and at some swimming pools to draw water out of fabrics.

A drum brake is a brake that uses friction caused by a set of shoes or pads that press outward against a rotating bowl-shaped part called a brake drum.

Louis Aimé Augustin Le Prince (French: [lwi l(ə) pʁɛ̃s]; 28 August 1841, disappeared 16 September 1890; declared dead 16 September 1897) was a French-American artist, cinematographer and the inventor of an early motion-picture camera, and director of Roundhay Garden Scene.

George Baldwin Selden (September 14, 1846, January 17, 1922) was an American patent lawyer and inventor from New York who was granted a U.S. patent for an automobile in 1895.

Émile Constant Levassor (21 January 1843-14 April 1897) was a French engineer and a pioneer of the automobile industry and car racing in France.

Denis Papin FRS (French pronunciation: [dəni papɛ̃]; 22 August 1647-26 August 1713) was a French Huguenot physicist, mathematician and inventor, best known for his pioneering invention of the steam digester, the forerunner of the pressure cooker, the steam engine, the centrifugal pump, and a submersible boat.

Frederick William Lanchester (23 October 1868-8 March 1946), was an English polymath and engineer who made important contributions to automotive engineering and to aerodynamics, and co-invented the topic of operations research.

In physics, Huygens made seminal contributions to optics and mechanics, while as an astronomer he studied the rings of Saturn and discovered its largest moon, Titan.

Hooke built the vacuum pumps that were used in Boyle's experiments on gas law and also conducted experiments.

He is best known for having improved the flush toilet and inventing the hydraulic press.

His reputation was built on the engraving and design of dividing engines which allowed high accuracy measurements of angles and lengths in instruments.

Sir Frederick Henry Royce, 1st Baronet (; 27 March 1863-22 April 1933) was an English engineer famous for his designs of car and aeroplane engines that had a reputation for reliability and longevity.

In 1948, he established Honda Motor Co., Ltd. and oversaw its expansion from a wooden shack manufacturing bicycle motors to a multinational automobile and motorcycle manufacturer.

Wilhelm Maybach (German: [ˈvɪlhɛlm ˈmaɪbax] ; 9 February 1846-29 December 1929) was an early German engine designer and industrialist.

He presented his first design in 1730, and worked over many years on improved designs, making several advances in time-keeping technology, finally turning to what were called sea watches.

Once her patent issued on December 28, 1886, she founded Garis-Cochrane Manufacturing Company to manufacture her machines.

His invention was referred to as the "inclined elevator." An earlier escalator machine, termed "revolving stairs" by its inventor Nathan Ames, was patented March 9, 1859, but was never built.

He wrote the first treatises on the science of compressed air and its uses in pumps (and even in a kind of cannon).

Nicolaus August Otto (German pronunciation: [ˈnɪkolaʊ̯s ˈaʊ̯ɡʊst ˈɔto]; 10 June 1832-26 January 1891) was a German engineer who successfully developed the compressed charge internal combustion engine which ran on petroleum gas and led to the modern internal combustion engine.

After the war, Ottens began attending the Delft University of Technology, where he studied mechanical engineering.

The belt is looped around each of the rollers and when one of the rollers is powered (by an electrical motor) the belting slides across the solid metal frame bed, moving the product.

This flush may flow from a dedicated tank (cistern), a high-pressure water pipe controlled by a flush valve, or by manually pouring water into the bowl.

He made several approaches to the British authorities, in 1912, 1914, and 1916, with plans for a vehicle driven by a type of caterpillar track, believing that it could have a military application.

Richard Thompson James (March 27, 1918, July 13, 1974) was an American naval engineer, best known for inventing the Slinky spring toy with his wife Betty James in Haverford Township, Pennsylvania in 1943.

György Jendrassik or George Jendrassik (1898, Budapest, 1954, London) was a Hungarian physicist and mechanical engineer.

Whitcomb L. Judson (March 7, 1843, December 7, 1909) was an American machine salesman, mechanical engineer and inventor.

Educated in the capital cities of Luoyang and Chang'an, he achieved success as an astronomer, mathematician, seismologist, hydraulic engineer, inventor, geographer, cartographer, ethnographer, artist, poet, philosopher, politician, and literary scholar.

best known for his invention of the multi-stage (compounded) steam turbine

He developed the first practical pneumatic tyre for his son's tricycle

Invented and patented the first lawn mower.

who patented a ball bearing race for carriage axle-trees in 1794

Jacob Perkins (1766-1849) was an Anglo-American inventor, mechanical engineer and physicist.

Christopher Sydney Cockerell (1910-1999), electronic and mechanical engineer

He was well known as an inventor of philosophical instruments

Belušić continued his studies in Vienna, later resettling in Trieste before coming back to Istria, where he built his best known invention, the speedometer.

In the realm of secular affairs, Yixing gained prominence for his reforms to the imperial calendar and his construction of a celestial globe featuring a liquid-driven escapement, the first in a long tradition of Chinese astronomical clockworks.

Cruise control (also known as speed control, cruise command, autocruise, or tempomat) is a system that automatically controls the speed of an automobile.

An industrial robot is a robot used for manufacturing.

A radial tire (more properly, a radial-ply tire) is a particular design of vehicular tire.

Inventor and entrepreneur Garrett Augustus Morgan pioneered important inventions including the "safety hood" - the forerunner of the gas mask - and the mechanical three-way traffic signal.

With her 1903 patent, Anderson's invention proved to be the first windshield-clearing device to be effective.