Table of Contents
133 relations: AC power, Acoustics, Advanced Gas-cooled Reactor, Alternating current, Ampere, Audio signal, Avedøre Power Station, Ørsted (company), British Rail Class 373, British Science Association, California, Carl Wilhelm Siemens, Centimetre–gram–second system of units, Chemist, Chirped pulse amplification, Cogeneration, Conversion of units, DBm, Decibel, Diesel locomotive, Dipole antenna, Doel Nuclear Power Station, Duck curve, Earth's internal heat budget, Effective radiated power, Electric energy consumption, Electric light, Electric locomotive, Electric motor, Electric power, Electric power industry, Electrical grid, Electrical network, Electrical reactance, Electrical resistance and conductance, Electrocardiography, Electroencephalography, Electromagnetic radiation, Electromagnetism, Embalse Nuclear Power Station, Encyclopedia of Earth, Energy, Engine, English Engineering Units, Erg, General Conference on Weights and Measures, Gravity, Hearing aid, Heating element, Horsepower, ... Expand index (83 more) »
- James Watt
- SI derived units
- Units of power
AC power
In an electric circuit, instantaneous power is the time rate of flow of energy past a given point of the circuit.
Acoustics
Acoustics is a branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound.
Advanced Gas-cooled Reactor
The Advanced Gas-cooled Reactor (AGR) is a type of nuclear reactor designed and operated in the United Kingdom.
See Watt and Advanced Gas-cooled Reactor
Alternating current
Alternating current (AC) is an electric current that periodically reverses direction and changes its magnitude continuously with time, in contrast to direct current (DC), which flows only in one direction.
See Watt and Alternating current
Ampere
The ampere (symbol: A), often shortened to amp,SI supports only the use of symbols and deprecates the use of abbreviations for units.
See Watt and Ampere
Audio signal
An audio signal is a representation of sound, typically using either a changing level of electrical voltage for analog signals, or a series of binary numbers for digital signals.
Avedøre Power Station
The Avedøre Power Station (Avedøreværket) is a combined heat and power station, located in Avedøre, Denmark, just south of Copenhagen, and is owned by Ørsted A/S.
See Watt and Avedøre Power Station
Ørsted (company)
Ørsted A/S (formerly DONG Energy) is a Danish multinational energy company.
British Rail Class 373
The British Rail Class 373, known in France as the TGV TMST and branded by Eurostar as the Eurostar e300, is a French designed and Anglo-French built electric multiple unit train that was used for Eurostar international high-speed rail services from the United Kingdom to France and Belgium through the Channel Tunnel.
See Watt and British Rail Class 373
British Science Association
The British Science Association (BSA) is a charity and learned society founded in 1831 to aid in the promotion and development of science.
See Watt and British Science Association
California
California is a state in the Western United States, lying on the American Pacific Coast.
Carl Wilhelm Siemens
Sir Carl Wilhelm Siemens (4 April 1823 – 19 November 1883), anglicised to Charles William Siemens, was a German-British electrical engineer and businessman.
See Watt and Carl Wilhelm Siemens
Centimetre–gram–second system of units
The centimetre–gram–second system of units (CGS or cgs) is a variant of the metric system based on the centimetre as the unit of length, the gram as the unit of mass, and the second as the unit of time.
See Watt and Centimetre–gram–second system of units
Chemist
A chemist (from Greek chēm(ía) alchemy; replacing chymist from Medieval Latin alchemist) is a graduated scientist trained in the study of chemistry, or an officially enrolled student in the field.
See Watt and Chemist
Chirped pulse amplification
Chirped pulse amplification (CPA) is a technique for amplifying an ultrashort laser pulse up to the petawatt level, with the laser pulse being stretched out temporally and spectrally, then amplified, and then compressed again.
See Watt and Chirped pulse amplification
Cogeneration
Cogeneration or combined heat and power (CHP) is the use of a heat engine or power station to generate electricity and useful heat at the same time.
Conversion of units
Conversion of units is the conversion of the unit of measurement in which a quantity is expressed, typically through a multiplicative conversion factor that changes the unit without changing the quantity.
See Watt and Conversion of units
DBm
dBm or dBmW (decibel-milliwatts) is a unit of power level expressed using a logarithmic decibel (dB) scale respective to one milliwatt (mW). Watt and dBm are units of power.
See Watt and DBm
Decibel
The decibel (symbol: dB) is a relative unit of measurement equal to one tenth of a bel (B).
See Watt and Decibel
Diesel locomotive
A diesel locomotive is a type of railway locomotive in which the power source is a diesel engine.
See Watt and Diesel locomotive
Dipole antenna
In radio and telecommunications a dipole antenna or doublet is one of the two simplest and most widely-used types of antenna; the other is the monopole.
Doel Nuclear Power Station
The Doel Nuclear Power Station is one of two nuclear power plants in Belgium.
See Watt and Doel Nuclear Power Station
Duck curve
The duck curve is a graph of power production over the course of a day that shows the timing imbalance between peak demand and solar power generation.
Earth's internal heat budget
Earth's internal heat budget is fundamental to the thermal history of the Earth.
See Watt and Earth's internal heat budget
Effective radiated power
Effective radiated power (ERP), synonymous with equivalent radiated power, is an IEEE standardized definition of directional radio frequency (RF) power, such as that emitted by a radio transmitter.
See Watt and Effective radiated power
Electric energy consumption
Electric energy consumption is energy consumption in the form of electrical energy.
See Watt and Electric energy consumption
Electric light
An electric light, lamp, or light bulb is an electrical component that produces light.
Electric locomotive
An electric locomotive is a locomotive powered by electricity from overhead lines, a third rail or on-board energy storage such as a battery or a supercapacitor.
See Watt and Electric locomotive
Electric motor
An electric motor is an electrical machine that converts electrical energy into mechanical energy.
Electric power
Electric power is the rate of transfer of electrical energy within a circuit.
Electric power industry
The electric power industry covers the generation, transmission, distribution and sale of electric power to the general public and industry.
See Watt and Electric power industry
Electrical grid
An electrical grid (or electricity network) is an interconnected network for electricity delivery from producers to consumers.
Electrical network
An electrical network is an interconnection of electrical components (e.g., batteries, resistors, inductors, capacitors, switches, transistors) or a model of such an interconnection, consisting of electrical elements (e.g., voltage sources, current sources, resistances, inductances, capacitances).
See Watt and Electrical network
Electrical reactance
In electrical circuits, reactance is the opposition presented to alternating current by inductance and capacitance.
See Watt and Electrical reactance
Electrical resistance and conductance
The electrical resistance of an object is a measure of its opposition to the flow of electric current.
See Watt and Electrical resistance and conductance
Electrocardiography
Electrocardiography is the process of producing an electrocardiogram (ECG or EKG), a recording of the heart's electrical activity through repeated cardiac cycles.
See Watt and Electrocardiography
Electroencephalography
Electroencephalography (EEG) is a method to record an electrogram of the spontaneous electrical activity of the brain.
See Watt and Electroencephalography
Electromagnetic radiation
In physics, electromagnetic radiation (EMR) consists of waves of the electromagnetic (EM) field, which propagate through space and carry momentum and electromagnetic radiant energy.
See Watt and Electromagnetic radiation
Electromagnetism
In physics, electromagnetism is an interaction that occurs between particles with electric charge via electromagnetic fields.
Embalse Nuclear Power Station
The Embalse Nuclear Power Station (Central Nuclear Embalse) is one of three operational nuclear power plants in Argentina.
See Watt and Embalse Nuclear Power Station
Encyclopedia of Earth
The Encyclopedia of Earth (abbreviated EoE) is an electronic reference about the Earth, its natural environments, and their interaction with society.
See Watt and Encyclopedia of Earth
Energy
Energy is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light.
See Watt and Energy
Engine
An engine or motor is a machine designed to convert one or more forms of energy into mechanical energy.
See Watt and Engine
English Engineering Units
Some fields of engineering in the United States use a system of measurement of physical quantities known as the English Engineering Units.
See Watt and English Engineering Units
Erg
The erg is a unit of energy equal to 10−7joules (100nJ).
See Watt and Erg
General Conference on Weights and Measures
The General Conference on Weights and Measures (abbreviated CGPM from the Conférence générale des poids et mesures) is the supreme authority of the International Bureau of Weights and Measures (BIPM), the intergovernmental organization established in 1875 under the terms of the Metre Convention through which member states act together on matters related to measurement science and measurement standards.
See Watt and General Conference on Weights and Measures
Gravity
In physics, gravity is a fundamental interaction which causes mutual attraction between all things that have mass.
See Watt and Gravity
Hearing aid
A hearing aid is a device designed to improve hearing by making sound audible to a person with hearing loss.
Heating element
A heating element is a device used for conversion of electric energy into heat, consisting of a heating resistor and accessories.
Horsepower
Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. Watt and Horsepower are James Watt and units of power.
HVDC converter
An HVDC converter converts electric power from high voltage alternating current (AC) to high-voltage direct current (HVDC), or vice versa.
Industrial Revolution
The Industrial Revolution, sometimes divided into the First Industrial Revolution and Second Industrial Revolution, was a period of global transition of the human economy towards more widespread, efficient and stable manufacturing processes that succeeded the Agricultural Revolution.
See Watt and Industrial Revolution
Input impedance
In electrical engineering, the input impedance of an electrical network is the measure of the opposition to current (impedance), both static (resistance) and dynamic (reactance), into a load network that is external to the electrical source network.
Institution of Engineering and Technology
The Institution of Engineering and Technology (IET) is a multidisciplinary professional engineering institution.
See Watt and Institution of Engineering and Technology
International Bureau of Weights and Measures
The International Bureau of Weights and Measures (Bureau international des poids et mesures, BIPM) is an intergovernmental organisation, through which its 59 member-states act on measurement standards in areas including chemistry, ionising radiation, physical metrology, as well as the International System of Units (SI) and Coordinated Universal Time (UTC).
See Watt and International Bureau of Weights and Measures
International System of Units
The International System of Units, internationally known by the abbreviation SI (from French Système international d'unités), is the modern form of the metric system and the world's most widely used system of measurement.
See Watt and International System of Units
Invention
An invention is a unique or novel device, method, composition, idea or process.
James Watt
James Watt (30 January 1736 (19 January 1736 OS) – 25 August 1819) was a Scottish inventor, mechanical engineer, and chemist who improved on Thomas Newcomen's 1712 Newcomen steam engine with his Watt steam engine in 1776, which was fundamental to the changes brought by the Industrial Revolution in both his native Great Britain and the rest of the world.
Joule
The joule (pronounced, or; symbol: J) is the unit of energy in the International System of Units (SI). Watt and joule are sI derived units.
See Watt and Joule
Joule-second
The joule-second (symbol J⋅s or J s) is the unit of action and of angular momentum in the International System of Units (SI) equal to the product of an SI derived unit, the joule (J), and an SI base unit, the second (s). Watt and joule-second are sI derived units.
Kibble balance
A Kibble balance (also formerly known as a watt balance) is an electromechanical measuring instrument that measures the weight of a test object very precisely by the electric current and voltage needed to produce a compensating force.
Kilogram
The kilogram (also kilogramme) is the base unit of mass in the International System of Units (SI), having the unit symbol kg.
Kilowatt-hour
A kilowatt-hour (unit symbol: kW⋅h or kW h; commonly written as kWh) is a non-SI unit of energy equal to 3.6 megajoules (MJ) in SI units which is the energy delivered by one kilowatt of power for one hour.
Laser pointer
A laser pointer or laser pen is a (typically battery-powered) handheld device that uses a laser diode to emit a narrow low-power visible laser beam (i.e. coherent light) to highlight something of interest with a small bright colored spot.
Lawrence Livermore National Laboratory
Lawrence Livermore National Laboratory (LLNL) is a federally funded research and development center in Livermore, California, United States.
See Watt and Lawrence Livermore National Laboratory
Livermore, California
Livermore is a city in Alameda County, California.
See Watt and Livermore, California
Main lobe
In a radio antennas, the main lobe or main beam is the region of the radiation pattern containing the highest power or exhibiting the greatest field strength.
Mechanical engineering
Mechanical engineering is the study of physical machines that may involve force and movement.
See Watt and Mechanical engineering
Medical device
A medical device is any device intended to be used for medical purposes.
Metre
The metre (or meter in US spelling; symbol: m) is the base unit of length in the International System of Units (SI).
See Watt and Metre
Metre per second
The metre per second is the unit of both speed (a scalar quantity) and velocity (a vector quantity, which has direction and magnitude) in the International System of Units (SI), equal to the speed of a body covering a distance of one metre in a time of one second. Watt and metre per second are sI derived units.
Metric prefix
A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple or submultiple of the unit.
Microsecond
A microsecond is a unit of time in the International System of Units (SI) equal to one millionth (0.000001 or 10−6 or) of a second.
Nanosecond
A nanosecond (ns) is a unit of time in the International System of Units (SI) equal to one billionth of a second, that is, of a second, or 10 seconds.
Newcomen atmospheric engine
The atmospheric engine was invented by Thomas Newcomen in 1712, and is often referred to as the Newcomen fire engine (see below) or simply as a Newcomen engine.
See Watt and Newcomen atmospheric engine
Newton (unit)
The newton (symbol: N) is the unit of force in the International System of Units (SI). Watt and newton (unit) are sI derived units.
Nominal power (photovoltaic)
Nominal power is the nameplate capacity of photovoltaic (PV) devices, such as solar cells, modules and systems. Watt and Nominal power (photovoltaic) are units of power.
See Watt and Nominal power (photovoltaic)
Nova (laser)
Nova was a high-power laser built at the Lawrence Livermore National Laboratory (LLNL) in California, United States, in 1984 which conducted advanced inertial confinement fusion (ICF) experiments until its dismantling in 1999.
Nuclear power plant
A nuclear power plant (NPP) or atomic power station (APS) is a thermal power station in which the heat source is a nuclear reactor.
See Watt and Nuclear power plant
Nuclear reactor
A nuclear reactor is a device used to initiate and control a fission nuclear chain reaction or nuclear fusion reactions.
Nuclear Regulatory Commission
The United States Nuclear Regulatory Commission (NRC) is an independent agency of the United States government tasked with protecting public health and safety related to nuclear energy.
See Watt and Nuclear Regulatory Commission
Ohm
The ohm (symbol: Ω, the uppercase Greek letter omega) is the unit of electrical resistance in the International System of Units (SI). Watt and ohm are sI derived units.
See Watt and Ohm
Ohm's law
Ohm's law states that the electric current through a conductor between two points is directly proportional to the voltage across the two points.
Osaka University
, abbreviated as OU or, is a national research university in Osaka, Japan.
Oxford English Dictionary
The Oxford English Dictionary (OED) is the principal historical dictionary of the English language, published by Oxford University Press (OUP), a University of Oxford publishing house.
See Watt and Oxford English Dictionary
Pacific Grove, California
Pacific Grove is a coastal city in Monterey County, California, in the United States.
See Watt and Pacific Grove, California
Particle accelerator
A particle accelerator is a machine that uses electromagnetic fields to propel charged particles to very high speeds and energies to contain them in well-defined beams.
See Watt and Particle accelerator
Pascal (unit)
The pascal (symbol: Pa) is the unit of pressure in the International System of Units (SI). Watt and pascal (unit) are sI derived units.
Picosecond
A picosecond (abbreviated as ps) is a unit of time in the International System of Units (SI) equal to 10−12 or (one trillionth) of a second.
Power (physics)
Power is the amount of energy transferred or converted per unit time.
Power factor
In electrical engineering, the power factor of an AC power system is defined as the ratio of the real power absorbed by the load to the apparent power flowing in the circuit.
Power rating
In electrical engineering and mechanical engineering, the power rating of equipment is the highest power input allowed to flow through particular equipment.
Power station
A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the generation of electric power.
Primary energy
Primary energy (PE) is the energy found in nature that has not been subjected to any human engineered conversion process.
Quantification (science)
In mathematics and empirical science, quantification (or quantitation) is the act of counting and measuring that maps human sense observations and experiences into quantities.
See Watt and Quantification (science)
Radar
Radar is a system that uses radio waves to determine the distance (ranging), direction (azimuth and elevation angles), and radial velocity of objects relative to the site.
See Watt and Radar
Radiant flux
In radiometry, radiant flux or radiant power is the radiant energy emitted, reflected, transmitted, or received per unit time, and spectral flux or spectral power is the radiant flux per unit frequency or wavelength, depending on whether the spectrum is taken as a function of frequency or of wavelength.
Radio
Radio is the technology of communicating using radio waves.
See Watt and Radio
Radio astronomy
Radio astronomy is a subfield of astronomy that studies celestial objects at radio frequencies.
Radio broadcasting
Radio broadcasting is the broadcasting of audio (sound), sometimes with related metadata, by radio waves to radio receivers belonging to a public audience.
See Watt and Radio broadcasting
Radio frequency
Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency range from around to around.
Resistor
A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element.
Science (journal)
Science, also widely referred to as Science Magazine, is the peer-reviewed academic journal of the American Association for the Advancement of Science (AAAS) and one of the world's top academic journals.
See Watt and Science (journal)
Scottish people
The Scottish people or Scots (Scots fowk; Albannaich) are an ethnic group and nation native to Scotland.
Second
The second (symbol: s) is the unit of time in the International System of Units (SI), historically defined as of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds each (24 × 60 × 60.
See Watt and Second
Server farm
A server farm or server cluster is a collection of computer servers, usually maintained by an organization to supply server functionality far beyond the capability of a single machine.
SI base unit
The SI base units are the standard units of measurement defined by the International System of Units (SI) for the seven base quantities of what is now known as the International System of Quantities: they are notably a basic set from which all other SI units can be derived.
SI derived unit
SI derived units are units of measurement derived from the seven SI base units specified by the International System of Units (SI). Watt and sI derived unit are sI derived units.
Signal-to-noise ratio
Signal-to-noise ratio (SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise.
See Watt and Signal-to-noise ratio
Solar cell
A solar cell or photovoltaic cell (PV cell) is an electronic device that converts the energy of light directly into electricity by means of the photovoltaic effect.
Solar constant
The solar constant (GSC) measures the amount of energy received by a given area one astronomical unit away from the Sun.
Solar irradiance
Solar irradiance is the power per unit area (surface power density) received from the Sun in the form of electromagnetic radiation in the wavelength range of the measuring instrument.
Solar power
Solar power, also known as solar electricity, is the conversion of energy from sunlight into electricity, either directly using photovoltaics (PV) or indirectly using concentrated solar power.
Solar-powered calculator
Solar-powered calculators are hand-held electronic calculators powered by solar cells mounted on the device.
See Watt and Solar-powered calculator
Solar-powered watch
A solar-powered watch or light-powered watch is a watch that is powered entirely or partly by a solar cell.
See Watt and Solar-powered watch
Sound power
Sound power or acoustic power is the rate at which sound energy is emitted, reflected, transmitted or received, per unit time.
Sound pressure
Sound pressure or acoustic pressure is the local pressure deviation from the ambient (average or equilibrium) atmospheric pressure, caused by a sound wave.
Switzerland
Switzerland, officially the Swiss Confederation, is a landlocked country located in west-central Europe.
Thermal power station
A thermal power station is a type of power station in which heat energy is converted to electrical energy.
See Watt and Thermal power station
Three Gorges Dam
The Three Gorges Dam is a hydroelectric gravity dam that spans the Yangtze River near Sandouping in Yiling District, Yichang, Hubei province, central China, downstream of the Three Gorges.
Transmitter
In electronics and telecommunications, a radio transmitter or just transmitter (often abbreviated as XMTR or TX in technical documents) is an electronic device which produces radio waves with an antenna with the purpose of signal transmission up to a radio receiver.
Tuner (radio)
A tuner is a subsystem that receives radio frequency (RF) transmissions, such as FM broadcasting, and converts the selected carrier frequency and its associated bandwidth into a fixed frequency that is suitable for further processing, usually because a lower frequency is used on the output.
United States
The United States of America (USA or U.S.A.), commonly known as the United States (US or U.S.) or America, is a country primarily located in North America.
University of North Carolina at Chapel Hill
The University of North Carolina at Chapel Hill (UNC, UNC-Chapel Hill, North Carolina, Chapel Hill, or simply Carolina) is a public research university in Chapel Hill, North Carolina.
See Watt and University of North Carolina at Chapel Hill
Velocity
Velocity is the speed in combination with the direction of motion of an object.
Volt
The volt (symbol: V) is the unit of electric potential, electric potential difference (voltage), and electromotive force in the International System of Units (SI). Watt and volt are sI derived units.
See Watt and Volt
Volt-ampere
The volt-ampere (SI symbol: VA, sometimes V⋅A or V A) is the unit of measurement for apparent power in an electrical circuit. Watt and volt-ampere are units of power.
Voltage
Voltage, also known as (electrical) potential difference, electric pressure, or electric tension is the difference in electric potential between two points.
See Watt and Voltage
Watt steam engine
The Watt steam engine design was an invention of James Watt that became synonymous with steam engines during the Industrial Revolution, and it was many years before significantly new designs began to replace the basic Watt design. Watt and Watt steam engine are James Watt.
See Watt and Watt steam engine
Wattmeter
The wattmeter is an instrument for measuring the electric active power (or the average of the rate of flow of electrical energy) in watts of any given circuit.
Webster's Dictionary
Webster's Dictionary is any of the English language dictionaries edited in the early 19th century by Noah Webster (1758–1843), an American lexicographer, as well as numerous related or unrelated dictionaries that have adopted the Webster's name in his honor.
See Watt and Webster's Dictionary
Work (electric field)
Electric field work is the work performed by an electric field on a charged particle in its vicinity.
See Watt and Work (electric field)
Work (physics)
In science, work is the energy transferred to or from an object via the application of force along a displacement.
See also
James Watt
- Boulton and Watt
- Heathfield Hall
- Horsepower
- James Watt
- James Watt College
- James Watt International Gold Medal
- Lap Engine
- Old Bess (beam engine)
- Smethwick Engine
- Watt
- Watt steam engine
- Watt's curve
- Watt's linkage
- Whitbread Engine
SI derived units
- Becquerel
- Candela per square metre
- Celsius
- Coulomb
- Cubic centimetre
- Cubic metre
- Cubic metre per second
- Farad
- Gray (unit)
- Henry (unit)
- Hertz
- Joule
- Joule per mole
- Joule-second
- Katal
- Kilogram per cubic metre
- Lumen (unit)
- Lumen second
- Lux
- Metre per second
- Metre per second squared
- Microgram
- Newton (unit)
- Newton-metre
- Newton-second
- Ohm
- Pascal (unit)
- Radian
- Radian per second
- Reciprocal length
- SI derived unit
- Siemens (unit)
- Sievert
- Square kilometre
- Square metre
- Steradian
- Tesla (unit)
- Volt
- Watt
- Weber (unit)
Units of power
- Airwatt
- DBm
- Decibel watt
- Horsepower
- Human equivalent
- Negawatt market
- Nominal power (photovoltaic)
- Nominal watt
- Orders of magnitude (power)
- Poncelet
- Solar luminosity
- Tax horsepower
- Ton of refrigeration
- Volt-ampere
- Watt
References
Also known as Attowatt, Deciwatt, Exawatt, Femtowatt, GWe, GWth, GigaWatt, Gigawatt electrical, Gigawatt thermal, Gigawatts, J/s, Joule per second, Joule/second, Joules per second, K W, K.W., KW, KWe, KWt, Kilawatt, Killowatt, KiloWatt, KiloWatts, Kw., LFEX, Light watt, MWT, MWTh, MWe, MWm, Mega watt, MegaWatt, MegaWatts, Megawatt (MW), Megawatt thermal, Microwatt, Milliwatt, Milliwatts, Nanowatt, Petawatt, Picowatt, Quectowatt, Quettawatt, Ronnawatt, Rontowatt, TeraWatt, Terawatts, Thermal megawatt, Watt (unit), Watt electrical, Watt energy, Watt thermal, Watt unit, Yoctowatt, Yottawatt, Zeptowatt, Zettawatt, , ΜW.