78 relations: Accuracy and precision, Age of the Earth, Basis point, Brass, Celsius, Centimetre, Century, Chemical engineering, Chemical shift, Chemistry, Coefficient, Cubic metre, Curie, Deformation (mechanics), Dimensionless quantity, Drum (container), Electrochemistry, Empire State Building, Engineering, English language, Fahrenheit, Finance, Fraction (mathematics), France, Gallon, Gram, Granularity, Inch, International Bureau of Weights and Measures, International Committee for Weights and Measures, International Electrotechnical Commission, International Organization for Standardization, International System of Units, International Union of Pure and Applied Physics, Laser rangefinder, Litre, Long and short scales, Mass fraction (chemistry), Metering pump, Metre, Metric prefix, Micro-, Micrometre, Milli-, Million, Mole fraction, Names of large numbers, Nano-, National Institute of Standards and Technology, Nuclear magnetic resonance spectroscopy, ..., Olympic-size swimming pool, Orders of magnitude (numbers), Particulates, Per mille, Percentage, Physics, Pico-, Polychlorinated dibenzodioxins, Quotient, Radon, Science, Standard deviation, Standards organization, Stepper motor, Technical writing, Temperature coefficient, Thermal expansion, Trichlorofluoromethane, United States customary units, United States Environmental Protection Agency, Units of measurement, Uranium, Volume fraction, Volumetric flow rate, 1,000,000,000, 100 (number), 1000 (number), 10000 (number). Expand index (28 more) » « Shrink index
Accuracy and precision are defined in terms of systematic and random errors.
The age of the Earth is 4.54 ± 0.05 billion years This age is based on evidence from radiometric age dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.
A basis point (often denoted as bp, often pronounced as "bip" or "beep") is a unit equal to one hundredth of a percentage point.
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Brass is a metal alloy made of copper and zinc; the proportions of zinc and copper can be varied to create a range of brasses with varying properties.
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Celsius, historically known as centigrade, is a scale and unit of measurement for temperature.
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A centimetre (international spelling as used by the International Bureau of Weights and Measures; symbol cm) or centimeter (American spelling) is a unit of length in the metric system, equal to one hundredth of a metre, centi being the SI prefix for a factor of.
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A century (from the Latin centum, meaning one hundred; abbreviated c.) is 100 years.
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Chemical engineering is a branch of engineering that applies physical sciences (e.g. chemistry and physics) and life sciences (e.g. biology, microbiology and biochemistry) together with mathematics and economics to produce, transform, transport, and properly use chemicals, materials and energy.
In nuclear magnetic resonance (NMR) spectroscopy, the chemical shift is the resonant frequency of a nucleus relative to a standard in a magnetic field.
Chemistry is a branch of physical science that studies the composition, structure, properties and change of matter.
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In mathematics, a coefficient is a multiplicative factor in some term of a polynomial, a series or any expression; it is usually a number, but in any case does not involve any variables of the expression.
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The cubic metre (in British English and international spelling as used by the International Bureau of Weights and Measures) or cubic meter (in American English) is the SI derived unit of volume.
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The curie (symbol Ci) is a non-SI unit of radioactivity, named after Pierre Curie, but probably also after Marie Curie.
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Deformation in continuum mechanics is the transformation of a body from a reference configuration to a current configuration.
In dimensional analysis, a dimensionless quantity is a quantity to which no physical dimension is applicable.
A drum is a cylindrical container used for shipping bulk cargo.
Electrochemistry is the branch of physical chemistry that studies chemical reactions which take place at the interface of an electrode, usually a solid metal or a semiconductor, and an ionic conductor, the electrolyte.
The Empire State Building is a 102-storyDepending on the source, the floor count of the Empire State Building is variously cited as 102 or 103.
Engineering is the application of mathematics, empirical evidence and scientific, economic, social, and practical knowledge in order to invent, design, build, maintain, research, and improve, structures, machines, tools, systems, components, materials, and processes.
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English is a West Germanic language that was first spoken in early medieval England and is now a global lingua franca.
Fahrenheit (symbol °F) is a temperature scale based on one proposed in 1724 by the German physicist Daniel Gabriel Fahrenheit (1686–1736), after whom the scale is named.
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Finance is a field that deals with assets and liabilities over time under conditions of certainty and uncertainty.
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A fraction (from fractus, "broken") represents a part of a whole or, more generally, any number of equal parts.
France, officially the French Republic (République française), is a sovereign state comprising territory in western Europe and several overseas regions and territories.
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The gallon is a measure of liquid capacity in both the US customary units and the British imperial systems of measurement.
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The gram (alternative British English spelling: gramme; SI unit symbol: g) (Greek/Latin root grámma) is a metric system unit of mass.
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Granularity is the extent to which a material or system is composed of distinguishable pieces or grains.
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An inch (plural: inches; abbreviation or symbol: in or ″ – a double prime) is a unit of length in the imperial and United States customary systems of measurement.
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The International Bureau of Weights and Measures (Bureau international des poids et mesures), is an international standards organisation, one of three such organisations established to maintain the International System of Units (SI) under the terms of the Metre Convention (Convention du Mètre).
The International Committee for Weights and Measures (abbreviated CIPM from the French Comité international des poids et mesures) consists of eighteen persons from Member States of the Metre Convention (Convention du Mètre) appointed by the General Conference on Weights and Measures (CGPM) whose principal task is to ensure world-wide uniformity in units of measurement by direct action or by submitting proposals to the CGPM.
The International Electrotechnical Commission (in French: Commission électrotechnique internationale) is a non-profit, non-governmental international standards organization that prepares and publishes International Standards for all electrical, electronic and related technologies – collectively known as "electrotechnology".
The International Organization for Standardization (ISO) is an international standard-setting body composed of representatives from various national standards organizations.
The International System of Units (Système International d'Unités, SI) is the modern form of the metric system, and is the most widely used system of measurement.
The International Union of Pure and Applied Physics (IUPAP) is an international non-governmental organization whose mission is to assist in the worldwide development of physics, to foster international cooperation in physics, and to help in the application of physics toward solving problems of concern to humanity.
A laser rangefinder is a rangefinder which uses a laser beam to determine the distance to an object.
The litre (International spelling) or liter (American spelling) (SI symbols L or l, commonly abbreviated as ltr) is an SI accepted metric system unit of volume equal to 1 cubic decimetre (dm3), 1,000 cubic centimetres (cm3) or 1/1,000 cubic metre.
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The long and short scales are two of several large-number naming systems for integer powers of ten, that use the same words with different meanings:;Long scale: Every new term greater than million is one million times larger than the previous term.
In chemistry, the mass fraction w_i is the ratio of one substance with mass m_i to the mass of the total mixture m_, defined as The sum of all the mass fractions is equal to 1: Mass fraction can also be expressed, with a denominator of 100, as percentage by mass (frequently, though erroneously, called percentage by weight, abbreviated wt%).
A metering pump moves a precise volume of liquid in a specified time period providing an accurate flow rate.
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The metre, American spelling meter, (from the Greek noun μέτρον, "measure") is the base unit of length in the International System of Units (SI).
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A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple or fraction of the unit.
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Micro (symbol µ) is a unit prefix in the metric system denoting a factor of 10−6 (one millionth).
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The micrometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: µm) or micrometer (American spelling), also commonly known as a micron, is an SI derived unit of length equaling 1×10−6 of a metre (SI standard prefix "micro-".
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Milli (symbol m) is a unit prefix in the metric system denoting a factor of one thousandth (10−3).
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One million (1,000,000) or one thousand thousand is the natural number following 999,999 and preceding 1,000,001.
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In chemistry, the mole fraction or molar fraction (x_i) is defined as the amount of a constituent (expressed in moles), n_i, divided by the total amount of all constituents in a mixture, n_: The sum of all the mole fractions is equal to 1: The same concept expressed with a denominator of 100 is the mole percent or molar percentage or molar proportion (mol%).
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This article lists and discusses the usage and derivation of names of large numbers, together with their possible extensions.
Nano- (symbol n) is a unit prefix meaning one billionth.
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The National Institute of Standards and Technology (NIST), known between 1901 and 1988 as the National Bureau of Standards (NBS), is a measurement standards laboratory, also known as a National Metrological Institute (NMI), which is a non-regulatory agency of the United States Department of Commerce.
Nuclear magnetic resonance spectroscopy, most commonly known as NMR spectroscopy, is a research technique that exploits the magnetic properties of certain atomic nuclei.
An Olympic-size swimming pool is the type of swimming pool used in the Olympic Games, where the race course is in length.
This list contains selected positive numbers in increasing order, including counts of things, dimensionless quantity and probabilities.
Atmospheric particulate matter – also known as particulate matter (PM) or particulates – is microscopic solid or liquid matter suspended in the Earth's atmosphere.
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A per milleCambridge Dictionary Online.
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In mathematics, a percentage is a number or ratio expressed as a fraction of 100.
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Physics (from knowledge of nature, from φύσις phúsis "nature") is the natural science that involves the study of 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 through space and time, along with related concepts such as 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." More broadly, it is the general analysis of nature, conducted in order 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, perhaps the oldest through its inclusion of astronomy. Over the last two millennia, physics was a part of natural philosophy along with chemistry, certain branches of mathematics, and biology, but during the scientific revolution in the 17th century, the natural sciences emerged as unique research programs 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 of other sciences while opening new avenues of research in areas such as mathematics and philosophy. Physics also makes significant contributions through advances in new technologies that arise from theoretical breakthroughs. For example, advances in the understanding of electromagnetism or 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.
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Pico- (symbol p) is a unit prefix in the metric system denoting one trillionth, a factor of 10−12.
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Polychlorinated dibenzodioxins (PCDDs), or simply dioxins, are a group of polyhalogenated organic compounds that are significant environmental pollutants.
In mathematics, a quotient (from quotiens "how many times", pronounced ˈkwoʊʃənt) is the result of division.
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Radon is a chemical element with symbol Rn and atomic number 86.
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ScienceFrom Latin scientia, meaning "knowledge".
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In statistics, the standard deviation (SD, also represented by the Greek letter sigma, σ for the population standard deviation or s for the sample standard deviation) is a measure that is used to quantify the amount of variation or dispersion of a set of data values.
A standards organization, standards body, standards developing organization (SDO), or standards setting organization (SSO) is any organization whose primary activities are developing, coordinating, promulgating, revising, amending, reissuing, interpreting, or otherwise producing technical standards that are intended to address the needs of some relatively wide base of affected adopters.
A stepper motor or step motor or stepping motor is a brushless DC electric motor that divides a full rotation into a number of equal steps.
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Technical writing is any written form of writing or drafting technical communication used in a variety of technical and occupational fields, such as computer hardware and software, engineering, chemistry, aeronautics, robotics, finance, consumer electronics, and biotechnology.
A temperature coefficient describes the relative change of a physical property that is associated with a given change in temperature.
Thermal expansion is the tendency of matter to change in volume in response to a change in temperature, when the body is heated its dimension(size) increase.This increase in dimension is called thermal expansion.
Trichlorofluoromethane, also called freon-11, CFC-11, or R-11, is a chlorofluorocarbon.
United States customary units are a system of measurements commonly used in the United States.
The United States Environmental Protection Agency (EPA or sometimes USEPA) is an agency of the U.S. federal government which was created for the purpose of protecting human health and the environment by writing and enforcing regulations based on laws passed by Congress.
A unit of measurement is a definite magnitude of a physical quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same physical quantity.
Uranium is a chemical element with symbol U and atomic number 92.
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In chemistry, the volume fraction φi is defined as the volume of a constituent Vi divided by the volume of all constituents of the mixture V prior to mixing: Being dimensionless, its unit is 1; it is expressed as a number, e.g., 0.18.
In physics and engineering, in particular fluid dynamics and hydrometry, the volumetric flow rate, (also known as volume flow rate, rate of fluid flow or volume velocity) is the volume of fluid which passes per unit time; usually represented by the symbol Q. The SI unit is m3/s (cubic metres per second).
1,000,000,000 (one billion, short scale; one thousand million or milliard, yard, long scale) is the natural number following 999,999,999 and preceding 1,000,000,001.
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100 or one hundred (Roman numeral: Ⅽ) is the natural number following 99 and preceding 101.
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1000 or one thousand is the natural number following 999 and preceding 1001 in most English-speaking countries.
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10000 (ten thousand) is the natural number following 9999 and preceding 10001.
1 Billionth, 1 Over 10^9, Part Per Billion, Part per hundred, Part per million, Parts per billion, Parts per hundred, Parts per million, Parts per million (ppm), Parts per notation, Parts per quadrillion, Parts per ten thousand, Parts per thousand, Parts per trillion, Parts-per-trillion, Ppbv, Ppmv, ㏙.