176 relations: Aircraft, Alloy wheel, American bison, American English, Ancient Egypt, Andes, Andronovo culture, Antikythera mechanism, Artillery wheel, Astrolabe, Athens, Axle, Baden culture, Bearing (mechanical), Bicycle, Bicycle wheel, Big wheel, Breaking wheel, Bronocice pot, Bronze, Bronze Age, Bronze Age religion, Canadian English, Car, Caster, Cattle, Caucasus, Celts, Centreless wheel, CFPL-DT, Chakra, Chalcolithic, Chariot, China, Coat of arms of Panama, Color wheel, Common Era, Compact disc, Continuous track, Cucuteni–Trypillia culture, Dharma, Diameter, Disteel, Domestication of the horse, Driving wheel, Dyson (company), Eastern Europe, Egypt, Electromagnetism, Energy, ..., Engineering tolerance, English in the Commonwealth of Nations, Etruscan civilization, Șieu-Măgheruș, Ferris wheel, Flag of India, Flag of the Romani people, Flywheel, Folding bicycle, Friction, Funnelbeaker culture, Gear, George Cayley, Greek language, Gyroscope, Hamster ball, Heavy equipment, History of Tibet, Hovercraft, Icelandic language, Indus Valley Civilisation, Inflatable, Iran, Iraq, Iron, James Starley, Jet engine, Joule, Ljubljana Marshes Wheel, Llama, Louis Mékarski, Maglev, Magnetic levitation, Mansell wheel, Maykop culture, Mecanum wheel, Mesopotamia, Minoan civilization, Moment (physics), Monteleone chariot, Motorcycle, Must Farm Bronze Age settlement, Natural rubber, Neolithic, Neolithic Revolution, Newton (unit), Normal force, Nubia, Ohio State Highway Patrol, Old English, Omni wheel, Pedrail wheel, Plain bearing, Pneumatics, Potter's wheel, Pottery, Pre-Pottery Neolithic A, Prehistoric pile dwellings around the Alps, Propeller, Proto-Germanic language, Proto-Indo-European language, Radius, Reincarnation, Reinventing the wheel, Rim (wheel), Rolling, Rolling resistance, Rotating locomotion in living systems, Sanskrit, Screw-propelled vehicle, Ship's wheel, Simple machine, Sled, Snow chains, Solar deity, Sparta, Sphere, Spindle whorl, Spinning wheel, Spoke, Spokeshave, Square wheel, Standard deviation, State Railway of Thailand, Steering wheel, Sub-Saharan Africa, Sun cross, Synthetic rubber, Tangent, Technology, Tell Halaf, Tension (physics), The Horse, the Wheel, and Language, The London Free Press, Tire, Tool, Torque, Torquetum, Traction (engineering), Train, Train wheel, Transport, Travois, Truck, Turbine, Tweel, Ur, Wagon, Wagon-wheel effect, Walking vehicle, Water wheel, Weatherhead Center for International Affairs, Wheel and axle, Wheel of Fortune, Wheel sizing, Wheelbarrow, Wheelbuilding, Wheelset (rail transport), Wheelwright, Wire, Wire rope, Wire wheel, Wood, Work (physics), Yin and yang, 4th millennium BC. Expand index (126 more) » « Shrink index
An aircraft is a machine that is able to fly by gaining support from the air.
In the automotive industry, alloy wheels are wheels that are made from an alloy of aluminium or magnesium.
The American bison or simply bison (Bison bison), also commonly known as the American buffalo or simply buffalo, is a North American species of bison that once roamed the grasslands of North America in massive herds.
American English (AmE, AE, AmEng, USEng, en-US), sometimes called United States English or U.S. English, is the set of varieties of the English language native to the United States.
Ancient Egypt was a civilization of ancient Northeastern Africa, concentrated along the lower reaches of the Nile River - geographically Lower Egypt and Upper Egypt, in the place that is now occupied by the countries of Egypt and Sudan.
The Andes or Andean Mountains (Cordillera de los Andes) are the longest continental mountain range in the world.
The Andronovo culture is a collection of similar local Bronze Age cultures that flourished c. 2000–900 BC in western Siberia and the central Eurasian Steppe.
The Antikythera mechanism is an ancient Greek analogue computer and orrery used to predict astronomical positions and eclipses for calendar and astrological purposes decades in advance.
The artillery wheel was developed for use on gun carriages when it was found that the lateral forces involved in horse artillery manoeuvres caused normally constructed cart wheels to collapse.
An astrolabe (ἀστρολάβος astrolabos; ٱلأَسْطُرلاب al-Asturlāb; اَختِرِیاب Akhteriab) is an elaborate inclinometer, historically used by astronomers and navigators to measure the inclined position in the sky of a celestial body, day or night.
Athens (Αθήνα, Athína; Ἀθῆναι, Athênai) is the capital and largest city of Greece.
An axle is a central shaft for a rotating wheel or gear.
The Baden culture, 3600–2800 BC, is a Chalcolithic culture found in Central and Southeast Europe.
A bearing is a machine element that constrains relative motion to only the desired motion, and reduces friction between moving parts.
A bicycle, also called a cycle or bike, is a human-powered, pedal-driven, single-track vehicle, having two wheels attached to a frame, one behind the other.
A bicycle wheel is a wheel, most commonly a wire wheel, designed for a bicycle.
Big wheel may refer to.
The breaking wheel, also known as the Catherine wheel or simply the wheel, was a torture device used for public execution from antiquity into early modern times by breaking a criminal's bones and/or bludgeoning them to death.
The Bronocice pot, discovered in a village in Gmina Dzialoszyce, Swietokrzyskie Voivodeship, near Nidzica River, Poland, is a ceramic vase incised with the earliest known image of what may be a wheeled vehicle.
Bronze is an alloy consisting primarily of copper, commonly with about 12% tin and often with the addition of other metals (such as aluminium, manganese, nickel or zinc) and sometimes non-metals or metalloids such as arsenic, phosphorus or silicon.
The Bronze Age is a historical period characterized by the use of bronze, and in some areas proto-writing, and other early features of urban civilization.
Bronze Age religion may refer to.
Canadian English (CanE, CE, en-CA) is the set of varieties of the English language native to Canada.
A car (or automobile) is a wheeled motor vehicle used for transportation.
A caster (also castor according to some dictionaries) is a wheeled device typically mounted to a larger object that enables relatively easy rolling movement of the object.
Cattle—colloquially cows—are the most common type of large domesticated ungulates.
The Caucasus or Caucasia is a region located at the border of Europe and Asia, situated between the Black Sea and the Caspian Sea and occupied by Russia, Georgia, Azerbaijan, and Armenia.
The Celts (see pronunciation of ''Celt'' for different usages) were an Indo-European people in Iron Age and Medieval Europe who spoke Celtic languages and had cultural similarities, although the relationship between ethnic, linguistic and cultural factors in the Celtic world remains uncertain and controversial.
A centreless wheel (also known as a hubless wheel, spokeless wheel, orbital wheel, or rim-rider) is a wheel with no center.
CFPL-DT, VHF channel 10, is a CTV Two owned-and-operated television station located in London, Ontario, Canada.
Chakras (Sanskrit: चक्र, IAST: cakra, Pali: cakka, lit. wheel, circle) are the various focal points in the subtle body used in a variety of ancient meditation practices, collectively denominated as Tantra, or the esoteric or inner traditions of Indian religion, Chinese Taoism, Tibetan Buddhism, as well as Japanese Esoteric Buddhism, and in postmodernity, in new age medicine, and originally psychologically adopted to the western mind through the assistance of Carl G. Jung.
The Chalcolithic (The New Oxford Dictionary of English (1998), p. 301: "Chalcolithic /,kælkəl'lɪθɪk/ adjective Archaeology of, relating to, or denoting a period in the 4th and 3rd millennium BCE, chiefly in the Near East and SE Europe, during which some weapons and tools were made of copper. This period was still largely Neolithic in character. Also called Eneolithic... Also called Copper Age - Origin early 20th cent.: from Greek khalkos 'copper' + lithos 'stone' + -ic". χαλκός khalkós, "copper" and λίθος líthos, "stone") period or Copper Age, in particular for eastern Europe often named Eneolithic or Æneolithic (from Latin aeneus "of copper"), was a period in the development of human technology, before it was discovered that adding tin to copper formed the harder bronze, leading to the Bronze Age.
A chariot is a type of carriage driven by a charioteer using primarily horses to provide rapid motive power.
China, officially the People's Republic of China (PRC), is a unitary one-party sovereign state in East Asia and the world's most populous country, with a population of around /1e9 round 3 billion.
The Panamanian coat of arms is a heraldic symbol for Panama.
A color wheel or colour circle is an abstract illustrative organization of color hues around a circle, which shows the relationships between primary colors, secondary colors, tertiary colors etc.
Common Era or Current Era (CE) is one of the notation systems for the world's most widely used calendar era – an alternative to the Dionysian AD and BC system.
Compact disc (CD) is a digital optical disc data storage format that was co-developed by Philips and Sony and released in 1982.
Continuous track, also called tank tread or caterpillar track, is a system of vehicle propulsion in which a continuous band of treads or track plates is driven by two or more wheels.
The Cucuteni–Trypillia culture (and), also known as the Tripolye culture, is a Neolithic–Eneolithic archaeological culture (5200 to 3500 BC) in Eastern Europe.
Dharma (dharma,; dhamma, translit. dhamma) is a key concept with multiple meanings in the Indian religions – Hinduism, Buddhism, Jainism, and Sikhism.
In geometry, a diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circle.
Disteel brand pressed-steel automobile wheels were manufactured by the Detroit Pressed Steel Company, and were introduced in 1917 as an alternative to wooden artillery wheels with demountable rims.
A number of hypotheses exist on many of the key issues regarding the domestication of the horse.
On a steam locomotive, a driving wheel is a powered wheel which is driven by the locomotive's pistons (or turbine, in the case of a steam turbine locomotive).
Dyson Ltd is a British technology company established by James Dyson in 1991.
Eastern Europe is the eastern part of the European continent.
Egypt (مِصر, مَصر, Khēmi), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia by a land bridge formed by the Sinai Peninsula.
Electromagnetism is a branch of physics involving the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles.
In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object.
Engineering tolerance is the permissible limit or limits of variation in.
The use of the English language in most member countries of the Commonwealth of Nations was inherited from British colonisation.
The Etruscan civilization is the modern name given to a powerful and wealthy civilization of ancient Italy in the area corresponding roughly to Tuscany, western Umbria and northern Lazio.
Șieu-Măgheruș (Sajómagyarós) is a commune in Bistrița-Năsăud County, Romania.
A Ferris wheel (sometimes called a big wheel, observation wheel, or, in the case of the very tallest examples, giant wheel) is an amusement ride consisting of a rotating upright wheel with multiple passenger-carrying components (commonly referred to as passenger cars, cabins, tubs, capsules, gondolas, or pods) attached to the rim in such a way that as the wheel turns, they are kept upright, usually by gravity.
The National Flag of India is a horizontal rectangular tricolour of India saffron, white and India green; with the Ashoka Chakra, a 24-spoke wheel, in navy blue at its centre.
The Romani flag (O styago le romengo in Romani) is the international flag of the Romani people.
A flywheel is a mechanical device specifically designed to efficiently store rotational energy.
A folding bicycle is a bicycle designed to fold into a compact form, facilitating transport and storage.
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.
The Funnel(-neck-)beaker culture, in short TRB or TBK (German: Trichter(-rand-)becherkultur, Dutch: Trechterbekercultuur; c. 4300 BC–c. 2800 BC) was an archaeological culture in north-central Europe.
A gear or cogwheel is a rotating machine part having cut like teeth, or cogs, which mesh with another toothed part to transmit torque.
Sir George Cayley, 6th Baronet (27 December 1773 – 15 December 1857) was an English engineer, inventor, and aviator.
Greek (Modern Greek: ελληνικά, elliniká, "Greek", ελληνική γλώσσα, ellinikí glóssa, "Greek language") is an independent branch of the Indo-European family of languages, native to Greece and other parts of the Eastern Mediterranean and the Black Sea.
A gyroscope (from Ancient Greek γῦρος gûros, "circle" and σκοπέω skopéō, "to look") is a device used for measuring or maintaining orientation and angular velocity.
Hamster balls are hollow spheres made of clear plastic into which hamsters, gerbils, degus and other small rodent pets are placed, allowing them to run around outside their cages without the risk of running away, getting lost under furniture or in walls.
Heavy equipment refers to heavy-duty vehicles, specially designed for executing construction tasks, most frequently ones involving earthwork operations.
Tibetan history, as it has been recorded, is particularly focused on the history of Buddhism in Tibet.
A hovercraft, also known as an air-cushion vehicle or ACV, is a craft capable of travelling over land, water, mud, ice, and other surfaces.
Icelandic (íslenska) is a North Germanic language, and the language of Iceland.
The Indus Valley Civilisation (IVC), or Harappan Civilisation, was a Bronze Age civilisation (5500–1300 BCE; mature period 2600–1900 BCE) mainly in the northwestern regions of South Asia, extending from what today is northeast Afghanistan to Pakistan and northwest India.
An inflatable is an object that can be inflated with a gas, usually with air, but hydrogen, helium and nitrogen are also used.
Iran (ایران), also known as Persia, officially the Islamic Republic of Iran (جمهوری اسلامی ایران), is a sovereign state in Western Asia. With over 81 million inhabitants, Iran is the world's 18th-most-populous country. Comprising a land area of, it is the second-largest country in the Middle East and the 17th-largest in the world. Iran is bordered to the northwest by Armenia and the Republic of Azerbaijan, to the north by the Caspian Sea, to the northeast by Turkmenistan, to the east by Afghanistan and Pakistan, to the south by the Persian Gulf and the Gulf of Oman, and to the west by Turkey and Iraq. The country's central location in Eurasia and Western Asia, and its proximity to the Strait of Hormuz, give it geostrategic importance. Tehran is the country's capital and largest city, as well as its leading economic and cultural center. Iran is home to one of the world's oldest civilizations, beginning with the formation of the Elamite kingdoms in the fourth millennium BCE. It was first unified by the Iranian Medes in the seventh century BCE, reaching its greatest territorial size in the sixth century BCE, when Cyrus the Great founded the Achaemenid Empire, which stretched from Eastern Europe to the Indus Valley, becoming one of the largest empires in history. The Iranian realm fell to Alexander the Great in the fourth century BCE and was divided into several Hellenistic states. An Iranian rebellion culminated in the establishment of the Parthian Empire, which was succeeded in the third century CE by the Sasanian Empire, a leading world power for the next four centuries. Arab Muslims conquered the empire in the seventh century CE, displacing the indigenous faiths of Zoroastrianism and Manichaeism with Islam. Iran made major contributions to the Islamic Golden Age that followed, producing many influential figures in art and science. After two centuries, a period of various native Muslim dynasties began, which were later conquered by the Turks and the Mongols. The rise of the Safavids in the 15th century led to the reestablishment of a unified Iranian state and national identity, with the country's conversion to Shia Islam marking a turning point in Iranian and Muslim history. Under Nader Shah, Iran was one of the most powerful states in the 18th century, though by the 19th century, a series of conflicts with the Russian Empire led to significant territorial losses. Popular unrest led to the establishment of a constitutional monarchy and the country's first legislature. A 1953 coup instigated by the United Kingdom and the United States resulted in greater autocracy and growing anti-Western resentment. Subsequent unrest against foreign influence and political repression led to the 1979 Revolution and the establishment of an Islamic republic, a political system that includes elements of a parliamentary democracy vetted and supervised by a theocracy governed by an autocratic "Supreme Leader". During the 1980s, the country was engaged in a war with Iraq, which lasted for almost nine years and resulted in a high number of casualties and economic losses for both sides. According to international reports, Iran's human rights record is exceptionally poor. The regime in Iran is undemocratic, and has frequently persecuted and arrested critics of the government and its Supreme Leader. Women's rights in Iran are described as seriously inadequate, and children's rights have been severely violated, with more child offenders being executed in Iran than in any other country in the world. Since the 2000s, Iran's controversial nuclear program has raised concerns, which is part of the basis of the international sanctions against the country. The Joint Comprehensive Plan of Action, an agreement reached between Iran and the P5+1, was created on 14 July 2015, aimed to loosen the nuclear sanctions in exchange for Iran's restriction in producing enriched uranium. Iran is a founding member of the UN, ECO, NAM, OIC, and OPEC. It is a major regional and middle power, and its large reserves of fossil fuels – which include the world's largest natural gas supply and the fourth-largest proven oil reserves – exert considerable influence in international energy security and the world economy. The country's rich cultural legacy is reflected in part by its 22 UNESCO World Heritage Sites, the third-largest number in Asia and eleventh-largest in the world. Iran is a multicultural country comprising numerous ethnic and linguistic groups, the largest being Persians (61%), Azeris (16%), Kurds (10%), and Lurs (6%).
Iraq (or; العراق; عێراق), officially known as the Republic of Iraq (جُمُهورية العِراق; کۆماری عێراق), is a country in Western Asia, bordered by Turkey to the north, Iran to the east, Kuwait to the southeast, Saudi Arabia to the south, Jordan to the southwest and Syria to the west.
Iron is a chemical element with symbol Fe (from ferrum) and atomic number 26.
James Starley (21 April 1830 – 17 June 1881) was an English inventor and father of the bicycle industry.
A jet engine is a type of reaction engine discharging a fast-moving jet that generates thrust by jet propulsion.
The joule (symbol: J) is a derived unit of energy in the International System of Units.
The Ljubljana Marshes Wheel is a wooden wheel that was found in the Ljubljana Marshes some south of Ljubljana, the capital of Slovenia, in 2002.
The llama (Lama glama) is a domesticated South American camelid, widely used as a meat and pack animal by Andean cultures since the Pre-Columbian era.
Louis Mékarski (in Polish Ludwik Mękarski) (1843, Clermont-Ferrand, (fr) France – 1923) was a French engineer and inventor of Polish origin.
Maglev (derived from magnetic levitation) is a system of train transportation that uses two sets of magnets, one set to repel and push the train up off the track as in levitation (hence Maglev, Magnetic-levitation), then another set to move the 'floating train' ahead at great speed taking advantage of the lack of friction.
Magnetic levitation, maglev, or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields.
The Mansell Wheel is a railway wheel patented by Richard Mansell, the Carriage and Wagon superintendent of the South Eastern Railway in the UK.
The Maykop culture (scientific transliteration: Majkop), c. 3700 BC–3000 BC, was a major Bronze Age archaeological culture in the western Caucasus region of southern Russia.
The Mecanum wheel is a design for a wheel which can move a vehicle in any direction.
Mesopotamia is a historical region in West Asia situated within the Tigris–Euphrates river system, in modern days roughly corresponding to most of Iraq, Kuwait, parts of Northern Saudi Arabia, the eastern parts of Syria, Southeastern Turkey, and regions along the Turkish–Syrian and Iran–Iraq borders.
The Minoan civilization was an Aegean Bronze Age civilization on the island of Crete and other Aegean Islands which flourished from about 2600 to 1600 BC, before a late period of decline, finally ending around 1100.
In physics, a moment is an expression involving the product of a distance and a physical quantity, and in this way it accounts for how the physical quantity is located or arranged.
The Monteleone chariot is an Etruscan chariot dated to c. 530 BC and was considered one of the world's great archaeological finds.
A motorcycle, often called a bike, motorbike, or cycle, is a two-> or three-wheeled motor vehicle.
Part of a Bronze Age settlement was uncovered at Must Farm quarry, at Whittlesey, near Peterborough, in Cambridgeshire, England.
Natural rubber, also called India rubber or caoutchouc, as initially produced, consists of polymers of the organic compound isoprene, with minor impurities of other organic compounds, plus water.
The Neolithic was a period in the development of human technology, beginning about 10,200 BC, according to the ASPRO chronology, in some parts of Western Asia, and later in other parts of the world and ending between 4500 and 2000 BC.
The Neolithic Revolution, Neolithic Demographic Transition, Agricultural Revolution, or First Agricultural Revolution, was the wide-scale transition of many human cultures during the Neolithic period from a lifestyle of hunting and gathering to one of agriculture and settlement, making an increasingly larger population possible.
The newton (symbol: N) is the International System of Units (SI) derived unit of force.
In mechanics, the normal force F_n\ is that component of the contact force that is perpendicular to the surface that an object contacts.
Nubia is a region along the Nile river encompassing the area between Aswan in southern Egypt and Khartoum in central Sudan.
The Ohio State Highway Patrol is a division of the Ohio Department of Public Safety and is the official highway patrol agency of Ohio.
Old English (Ænglisc, Anglisc, Englisc), or Anglo-Saxon, is the earliest historical form of the English language, spoken in England and southern and eastern Scotland in the early Middle Ages.
Omni wheels or poly wheels, similar to Mecanum wheels, are wheels with small discs around the circumference which are perpendicular to the turning direction.
The pedrail wheel is a type of wheel developed in the early 20th century for all-terrain locomotion.
A plain bearing, or more commonly sliding bearing and slide bearing (in railroading sometimes called a solid bearing or friction bearing), is the simplest type of bearing, comprising just a bearing surface and no rolling elements.
Pneumatics (From Greek: πνεύμα) is a branch of engineering that makes use of gas or pressurized air.
In pottery, a potter's wheel is a machine used in the shaping (known as throwing) of round ceramic ware.
Pottery is the ceramic material which makes up pottery wares, of which major types include earthenware, stoneware and porcelain.
Pre-Pottery Neolithic A (PPNA) denotes the first stage in early Levantine and Anatolian Neolithic culture, dating BP.
Prehistoric pile dwellings around the Alps is a series of prehistoric pile-dwelling (or stilt house) settlements in and around the Alps built from around 5000 to 500 B.C. on the edges of lakes, rivers or wetlands.
A propeller is a type of fan that transmits power by converting rotational motion into thrust.
Proto-Germanic (abbreviated PGmc; German: Urgermanisch; also called Common Germanic, German: Gemeingermanisch) is the reconstructed proto-language of the Germanic branch of the Indo-European languages.
Proto-Indo-European (PIE) is the linguistic reconstruction of the hypothetical common ancestor of the Indo-European languages, the most widely spoken language family in the world.
In classical geometry, a radius of a circle or sphere is any of the line segments from its center to its perimeter, and in more modern usage, it is also their length.
Reincarnation is the philosophical or religious concept that an aspect of a living being starts a new life in a different physical body or form after each biological death.
To reinvent the wheel is to duplicate a basic method that has already previously been created or optimized by others.
The rim is the "outer edge of a wheel, holding the tire".
Rolling is a type of motion that combines rotation (commonly, of an axially symmetric object) and translation of that object with respect to a surface (either one or the other moves), such that, if ideal conditions exist, the two are in contact with each other without sliding.
Rolling resistance, sometimes called rolling friction or rolling drag, is the force resisting the motion when a body (such as a ball, tire, or wheel) rolls on a surface.
Several organisms are capable of rolling locomotion; however, true wheels and propellers—despite their utility in human vehicles—do not appear to play a significant role in the movement of living things (with the exception of certain flagella, which function like corkscrews).
Sanskrit is the primary liturgical language of Hinduism; a philosophical language of Hinduism, Sikhism, Buddhism and Jainism; and a former literary language and lingua franca for the educated of ancient and medieval India.
A screw-propelled vehicle is a land or amphibious vehicle designed to cope with difficult snow and ice or mud and swamp.
A ship's wheel or boat's wheel is a device used aboard a water vessel to change that vessel's course.
A simple machine is a mechanical device that changes the direction or magnitude of a force.
A sled, sledge, or sleigh is a land vehicle with a smooth underside or possessing a separate body supported by two or more smooth, relatively narrow, longitudinal runners that travels by sliding across a surface.
Snow chains, or tire chains, are devices fitted to the tires of vehicles to provide maximum traction when driving through snow and ice.
A solar deity (also sun god or sun goddess) is a sky deity who represents the Sun, or an aspect of it, usually by its perceived power and strength.
Sparta (Doric Greek: Σπάρτα, Spártā; Attic Greek: Σπάρτη, Spártē) was a prominent city-state in ancient Greece.
A sphere (from Greek σφαῖρα — sphaira, "globe, ball") is a perfectly round geometrical object in three-dimensional space that is the surface of a completely round ball (viz., analogous to the circular objects in two dimensions, where a "circle" circumscribes its "disk").
A spindle whorl is a disc or spherical object fitted onto the spindle to increase and maintain the speed of the spin.
A spinning wheel is a device for spinning thread or yarn from natural or synthetic fibres.
A spoke is one of some number of rods radiating from the center of a wheel (the hub where the axle connects), connecting the hub with the round traction surface.
A spokeshave is a tool used to shape and smooth woods in woodworking jobs – often for use as wheel spokes, chair legs (particularly complex shapes such as the cabriole leg), self bows, and arrows.
A square wheel is a wheel that, instead of being circular, has the shape of a square.
In statistics, the standard deviation (SD, also represented by the Greek letter sigma σ or the Latin letter s) is a measure that is used to quantify the amount of variation or dispersion of a set of data values.
The State Railway of Thailand (SRT) (การรถไฟแห่งประเทศไทย) is the state-owned rail operator under the jurisdiction of the Ministry of Transport in Thailand.
A steering wheel (also called a driving wheel or a hand wheel) is a type of steering control in vehicles and vessels (ships and boats).
Sub-Saharan Africa is, geographically, the area of the continent of Africa that lies south of the Sahara.
A sun cross, solar cross, or wheel cross is a solar symbol consisting of an equilateral cross inside a circle.
A synthetic rubber is any artificial elastomer.
In geometry, the tangent line (or simply tangent) to a plane curve at a given point is the straight line that "just touches" the curve at that point.
Technology ("science of craft", from Greek τέχνη, techne, "art, skill, cunning of hand"; and -λογία, -logia) is first robustly defined by Jacob Bigelow in 1829 as: "...principles, processes, and nomenclatures of the more conspicuous arts, particularly those which involve applications of science, and which may be considered useful, by promoting the benefit of society, together with the emolument of those who pursue them".
Tell Halaf (تل حلف) is an archaeological site in the Al Hasakah governorate of northeastern Syria, near the Turkish border, just opposite Ceylanpınar.
In physics, tension may be described as the pulling force transmitted axially by the means of a string, cable, chain, or similar one-dimensional continuous object, or by each end of a rod, truss member, or similar three-dimensional object; tension might also be described as the action-reaction pair of forces acting at each end of said elements.
The Horse, the Wheel, and Language: How Bronze-Age Riders from the Eurasian Steppes Shaped the Modern World is a 2007 book by David W. Anthony, in which the author describes his "Revised Steppe Theory." He explores the origins and spread of the Indo-European languages from the Pontic-Caspian steppes throughout Western Europe, and Central and South Asia.
The London Free Press is a daily newspaper based in London, Ontario, Canada.
A tire (American English) or tyre (British English; see spelling differences) is a ring-shaped component that surrounds a wheel's rim to transfer a vehicle's load from the axle through the wheel to the ground and to provide traction on the surface traveled over.
A tool is any physical item that can be used to achieve a goal, especially if the item is not consumed in the process.
Torque, moment, or moment of force is rotational force.
The torquetum or turquet is a medieval astronomical instrument designed to take and convert measurements made in three sets of coordinates: Horizon, equatorial, and ecliptic.
Traction, or tractive force, is the force used to generate motion between a body and a tangential surface, through the use of dry friction, though the use of shear force of the surface is also commonly used.
A train is a form of transport consisting of a series of connected vehicles that generally runs along a rail track to transport cargo or passengers.
A train wheel or rail wheel is a type of wheel specially designed for use on rail tracks.
Transport or transportation is the movement of humans, animals and goods from one location to another.
A travois (Canadian French, from French travail, a frame for restraining horses; also obsolete travoy or travoise) is a historical frame structure that was used by indigenous peoples, notably the Plains Indians of North America, to drag loads over land.
A truck or lorry is a motor vehicle designed to transport cargo.
A turbine (from the Latin turbo, a vortex, related to the Greek τύρβη, tyrbē, meaning "turbulence") is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work.
The Tweel (a portmanteau of tire and wheel) is an airless tire design concept developed by the French tire company Michelin.
Ur (Sumerian: Urim; Sumerian Cuneiform: KI or URIM5KI; Akkadian: Uru; أور; אור) was an important Sumerian city-state in ancient Mesopotamia, located at the site of modern Tell el-Muqayyar (تل المقير) in south Iraq's Dhi Qar Governorate.
A wagon (also alternatively and archaically spelt waggon in British and Commonwealth English) is a heavy four-wheeled vehicle pulled by draught animals or on occasion by humans (see below), used for transporting goods, commodities, agricultural materials, supplies and sometimes people.
The wagon-wheel effect (alternatively, stagecoach-wheel effect, stroboscopic effect) is an optical illusion in which a spoked wheel appears to rotate differently from its true rotation.
A walking vehicle is a vehicle that moves on legs rather than wheels or tracks.
A water wheel is a machine for converting the energy of flowing or falling water into useful forms of power, often in a watermill.
The Weatherhead Center for International Affairs is a research center for international affairs and the largest international research center within Harvard University’s Faculty of Arts and Sciences.
The wheel and axle are one of six simple machines identified by Renaissance scientists drawing from Greek texts on technology.
Wheel of Fortune may refer to.
The wheel size for a motor vehicle or similar wheel has a number of parameters.
A wheelbarrow is a small hand-propelled vehicle, usually with just one wheel, designed to be pushed and guided by a single person using two handles at the rear, or by a sail to push the ancient wheelbarrow by wind.
Wheelbuilding is the process of assembling wire wheels (generally a bicycle wheel, but including wheelchairs, and some cars).
A wheelset is the wheel - axle assembly of a railroad car.
A wheelwright is a craftsman who builds or repairs wooden wheels.
A wire is a single, usually cylindrical, flexible strand or rod of metal.
Steel wire rope (right hand langs lay) Wire rope is several strands of metal wire twisted into a helix forming a composite "rope", in a pattern known as "laid rope".
Wire wheels, wire-spoked wheels, tension-spoked wheels, or "suspension" wheels are wheels whose rims connect to their hubs by wire spokes.
Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants.
In physics, a force is said to do work if, when acting, there is a displacement of the point of application in the direction of the force.
In Chinese philosophy, yin and yang (and; 陽 yīnyáng, lit. "dark-bright", "negative-positive") describes how seemingly opposite or contrary forces may actually be complementary, interconnected, and interdependent in the natural world, and how they may give rise to each other as they interrelate to one another.
The 4th millennium BC spanned the years 4000 through 3001 BC.