85 relations: Air Canada, Ancient Egypt, Atomic physics, Atomic units, Base unit (measurement), Bible, British Empire, Commonwealth of Nations, Conversion of units, Dimension, Dimensional analysis, Dimensionless quantity, Elam, Electric field, Electronvolt, Engineering, English units, Exponentiation, France, George Gamow, Gimli Glider, GNU Units, History of the metric system, Imperial units, Indus Valley Civilisation, International Bureau of Weights and Measures, International System of Units, International yard and pound, Iran, John, King of England, Kilowatt hour, Korean Air, Korean Air Cargo Flight 6316, Length, List of humorous units of measurement, List of obsolete units of measurement, List of unusual units of measurement, Magna Carta, Magnetic field, Magnitude (mathematics), Mars Climate Orbiter, Measurement, Medicine, Mesopotamia, Metre, Metric system, Metrication, Metrologia, Metrology, NASA, ..., National Institute of Standards and Technology, National Transportation Safety Board, Natural units, Newton (unit), Physical quantity, Physics, Pound (force), Problem solving, Psychometrics, Quantity, Quantity calculus, Reproducibility, Science, Scientific method, Seoul, Shanghai, SI base unit, SI derived unit, Social science, Solar mass, Standardization, Statute, Surface tension, System of measurement, Theory of conjoint measurement, TNT, TNT equivalent, Unified Code for Units of Measure, Unit of account, United States, United States customary units, Units of information, 1, 3rd millennium BC, 4th millennium BC. Expand index (35 more) » « Shrink index
Air Canada is the flag carrier and largest airline of Canada by fleet size and passengers carried.
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.
Atomic physics is the field of physics that studies atoms as an isolated system of electrons and an atomic nucleus.
Atomic units (au or a.u.) form a system of natural units which is especially convenient for atomic physics calculations.
A base unit (also referred to as a fundamental unit) is a unit adopted for measurement of a base quantity.
The Bible (from Koine Greek τὰ βιβλία, tà biblía, "the books") is a collection of sacred texts or scriptures that Jews and Christians consider to be a product of divine inspiration and a record of the relationship between God and humans.
The British Empire comprised the dominions, colonies, protectorates, mandates and other territories ruled or administered by the United Kingdom and its predecessor states.
The Commonwealth of Nations, often known as simply the Commonwealth, is an intergovernmental organisation of 53 member states that are mostly former territories of the British Empire.
Conversion of units is the conversion between different units of measurement for the same quantity, typically through multiplicative conversion factors.
In physics and mathematics, the dimension of a mathematical space (or object) is informally defined as the minimum number of coordinates needed to specify any point within it.
In engineering and science, dimensional analysis is the analysis of the relationships between different physical quantities by identifying their base quantities (such as length, mass, time, and electric charge) and units of measure (such as miles vs. kilometers, or pounds vs. kilograms) and tracking these dimensions as calculations or comparisons are performed.
In dimensional analysis, a dimensionless quantity is a quantity to which no physical dimension is assigned.
Elam (Elamite: haltamti, Sumerian: NIM.MAki) was an ancient Pre-Iranian civilization centered in the far west and southwest of what is now modern-day Iran, stretching from the lowlands of what is now Khuzestan and Ilam Province as well as a small part of southern Iraq.
An electric field is a vector field surrounding an electric charge that exerts force on other charges, attracting or repelling them.
In physics, the electronvolt (symbol eV, also written electron-volt and electron volt) is a unit of energy equal to approximately joules (symbol J).
Engineering is the creative application of science, mathematical methods, and empirical evidence to the innovation, design, construction, operation and maintenance of structures, machines, materials, devices, systems, processes, and organizations.
English units are the historical units of measurement used in England up to 1826 (when they were replaced by Imperial units), which evolved as a combination of the Anglo-Saxon and Roman systems of units.
Exponentiation is a mathematical operation, written as, involving two numbers, the base and the exponent.
France, officially the French Republic (République française), is a sovereign state whose territory consists of metropolitan France in Western Europe, as well as several overseas regions and territories.
George Gamow (March 4, 1904- August 19, 1968), born Georgiy Antonovich Gamov, was a Russian-American theoretical physicist and cosmologist.
Air Canada Flight 143 was a scheduled domestic passenger flight between Montreal and Edmonton that ran out of fuel on July 23, 1983 at an altitude of, midway through the flight.
GNU Units is a cross-platform computer program for conversion of units of quantities.
The history of the metric system began in the Age of Enlightenment with simple notions of length and weight taken from natural ones, and decimal multiples and fractions of them.
The system of imperial units or the imperial system (also known as British Imperial or Exchequer Standards of 1825) is the system of units first defined in the British Weights and Measures Act of 1824, which was later refined and reduced.
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.
The International Bureau of Weights and Measures (Bureau international des poids et mesures) is an intergovernmental organization established by the Metre Convention, through which Member States act together on matters related to measurement science and measurement standards.
The International System of Units (SI, abbreviated from the French Système international (d'unités)) is the modern form of the metric system, and is the most widely used system of measurement.
The international yard and pound are two units of measurement that were the subject of an agreement among representatives of six nations signed on 1 July 1959, namely the United States, United Kingdom, Canada, Australia, New Zealand and South Africa.
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%).
John (24 December 1166 – 19 October 1216), also known as John Lackland (Norman French: Johan sanz Terre), was King of England from 1199 until his death in 1216.
The kilowatt hour (symbol kWh, kW⋅h or kW h) is a unit of energy equal to 3.6 megajoules.
Korean Air Lines Co., Ltd., operating as Korean Air, is the largest airline and flag carrier of South Korea based on fleet size, international destinations and international flights.
Korean Air Cargo Flight 6316 (also known as KAL6316 and KE6316) was a scheduled Korean Air Cargo freight flight from Shanghai to Seoul.
In geometric measurements, length is the most extended dimension of an object.
Many people have made use of, or invented, units of measurement intended primarily for their humour value.
This is a list of obsolete units of measurement, sorted by type.
An unusual unit of measurement is a unit of measurement that does not form part of a coherent system of measurement; especially in that its exact quantity may not be well known or that it may be an inconvenient multiple or fraction of base units in such systems.
Magna Carta Libertatum (Medieval Latin for "the Great Charter of the Liberties"), commonly called Magna Carta (also Magna Charta; "Great Charter"), is a charter agreed to by King John of England at Runnymede, near Windsor, on 15 June 1215.
A magnetic field is a vector field that describes the magnetic influence of electrical currents and magnetized materials.
In mathematics, magnitude is the size of a mathematical object, a property which determines whether the object is larger or smaller than other objects of the same kind.
The Mars Climate Orbiter (formerly the Mars Surveyor '98 Orbiter) was a robotic space probe launched by NASA on December 11, 1998 to study the Martian climate, Martian atmosphere, and surface changes and to act as the communications relay in the Mars Surveyor '98 program for Mars Polar Lander.
Measurement is the assignment of a number to a characteristic of an object or event, which can be compared with other objects or events.
Medicine is the science and practice of the diagnosis, treatment, and prevention of disease.
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 metre (British spelling and BIPM spelling) or meter (American spelling) (from the French unit mètre, from the Greek noun μέτρον, "measure") is the base unit of length in some metric systems, including the International System of Units (SI).
The metric system is an internationally adopted decimal system of measurement.
Metrication or metrification is conversion to the metric system of units of measurement.
Metrologia is an international journal dealing with the scientific aspects of metrology.
Metrology is the science of measurement.
The National Aeronautics and Space Administration (NASA) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research.
The National Institute of Standards and Technology (NIST) is one of the oldest physical science laboratories in the United States.
The National Transportation Safety Board (NTSB) is an independent U.S. government investigative agency responsible for civil transportation accident investigation.
In physics, natural units are physical units of measurement based only on universal physical constants.
The newton (symbol: N) is the International System of Units (SI) derived unit of force.
A physical quantity is a physical property of a phenomenon, body, or substance, that can be quantified by measurement.or we can say that quantities which we come across during our scientific studies are called as the physical quantities...
Physics (from knowledge of nature, from φύσις phýsis "nature") is the natural science that studies matterAt the start of The Feynman Lectures on Physics, Richard Feynman offers the atomic hypothesis as the single most prolific scientific concept: "If, in some cataclysm, all scientific knowledge were to be destroyed one sentence what statement would contain the most information in the fewest words? I believe it is that all things are made up of atoms – little particles that move around in perpetual motion, attracting each other when they are a little distance apart, but repelling upon being squeezed into one another..." and its motion and behavior through space and time and that studies the related entities of energy and force."Physical science is that department of knowledge which relates to the order of nature, or, in other words, to the regular succession of events." Physics is one of the most fundamental scientific disciplines, and its main goal is to understand how the universe behaves."Physics is one of the most fundamental of the sciences. Scientists of all disciplines use the ideas of physics, including chemists who study the structure of molecules, paleontologists who try to reconstruct how dinosaurs walked, and climatologists who study how human activities affect the atmosphere and oceans. Physics is also the foundation of all engineering and technology. No engineer could design a flat-screen TV, an interplanetary spacecraft, or even a better mousetrap without first understanding the basic laws of physics. (...) You will come to see physics as a towering achievement of the human intellect in its quest to understand our world and ourselves."Physics is an experimental science. Physicists observe the phenomena of nature and try to find patterns that relate these phenomena.""Physics is the study of your world and the world and universe around you." Physics is one of the oldest academic disciplines and, through its inclusion of astronomy, perhaps the oldest. Over the last two millennia, physics, chemistry, biology, and certain branches of mathematics were a part of natural philosophy, but during the scientific revolution in the 17th century, these natural sciences emerged as unique research endeavors in their own right. Physics intersects with many interdisciplinary areas of research, such as biophysics and quantum chemistry, and the boundaries of physics are not rigidly defined. New ideas in physics often explain the fundamental mechanisms studied by other sciences and suggest new avenues of research in academic disciplines such as mathematics and philosophy. Advances in physics often enable advances in new technologies. For example, advances in the understanding of electromagnetism and nuclear physics led directly to the development of new products that have dramatically transformed modern-day society, such as television, computers, domestic appliances, and nuclear weapons; advances in thermodynamics led to the development of industrialization; and advances in mechanics inspired the development of calculus.
The pound-force (symbol: lbf, sometimes lbf) is a unit of force used in some systems of measurement including English Engineering units and the British Gravitational System.
Problem solving consists of using generic or ad hoc methods, in an orderly manner, to find solutions to problems.
Psychometrics is a field of study concerned with the theory and technique of psychological measurement.
Quantity is a property that can exist as a multitude or magnitude.
Quantity calculus is the formal method for describing the mathematical relations between abstract physical quantities.
Reproducibility is the closeness of the agreement between the results of measurements of the same measurand carried out under changed conditions of measurement.
R. P. Feynman, The Feynman Lectures on Physics, Vol.1, Chaps.1,2,&3.
Scientific method is an empirical method of knowledge acquisition, which has characterized the development of natural science since at least the 17th century, involving careful observation, which includes rigorous skepticism about what one observes, given that cognitive assumptions about how the world works influence how one interprets a percept; formulating hypotheses, via induction, based on such observations; experimental testing and measurement of deductions drawn from the hypotheses; and refinement (or elimination) of the hypotheses based on the experimental findings.
Seoul (like soul; 서울), officially the Seoul Special Metropolitan City – is the capital, Constitutional Court of Korea and largest metropolis of South Korea.
Shanghai (Wu Chinese) is one of the four direct-controlled municipalities of China and the most populous city proper in the world, with a population of more than 24 million.
The International System of Units (SI) defines seven units of measure as a basic set from which all other SI units can be derived.
SI derived units are units of measurement derived from the seven base units specified by the International System of Units (SI).
Social science is a major category of academic disciplines, concerned with society and the relationships among individuals within a society.
The solar mass is a standard unit of mass in astronomy, equal to approximately.
Standardization or standardisation is the process of implementing and developing technical standards based on the consensus of different parties that include firms, users, interest groups, standards organizations and governments Standardization can help to maximize compatibility, interoperability, safety, repeatability, or quality.
A statute is a formal written enactment of a legislative authority that governs a city, state, or country.
Surface tension is the elastic tendency of a fluid surface which makes it acquire the least surface area possible.
A system of measurement is a collection of units of measurement and rules relating them to each other.
The theory of conjoint measurement (also known as conjoint measurement or additive conjoint measurement) is a general, formal theory of continuous quantity.
Trinitrotoluene (TNT), or more specifically 2,4,6-trinitrotoluene, is a chemical compound with the formula C6H2(NO2)3CH3.
TNT equivalent is a convention for expressing energy, typically used to describe the energy released in an explosion.
The Unified Code for Units of Measure (the UCUM) is a system of codes for unambiguously representing measurement units to both humans and machines.
A unit of account in economics is a nominal monetary unit of measure or currency used to represent the real value (or cost) of any economic item; i.e. goods, services, assets, liabilities, income, expenses.
The United States of America (USA), commonly known as the United States (U.S.) or America, is a federal republic composed of 50 states, a federal district, five major self-governing territories, and various possessions.
United States customary units are a system of measurements commonly used in the United States.
In computing and telecommunications, a unit of information is the capacity of some standard data storage system or communication channel, used to measure the capacities of other systems and channels.
1 (one, also called unit, unity, and (multiplicative) identity) is a number, numeral, and glyph.
The 3rd millennium BC spanned the years 3000 through 2001 BC.
The 4th millennium BC spanned the years 4000 through 3001 BC.
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