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Induction heating

Induction heating is a form of heating an electrically conductive material through the use of Eddy current. Eddy currents use a changing magnetic field. That way, heat can be trannsferred over short distances without the objects actually touching.

Interstellar travel

Interstellar space travel is manned or unmanned travel between stars. Interstellar travel is much more difficult than travel within the Solar System, though travel in starships is a staple of science fiction. Actually, there is no suitable techno ...

Leaf spring

A Leaf spring is a spring type, usually it have been used in vehicles but nowadays current type is not so popular. Using leaf spring is one of the oldest ways to make suspension.

Manufacturing engineering

Manufacturing engineering is a field of engineering dealing with the design, development, and implementation of integrated systems of humans, machines, and information resources to provide products and services. Manufacturing engineering applies ...

Mechanical engineering

Mechanical engineering is a branch of engineering that applies the principles of Mechanics and Materials science for analysis, design, manufacturing, and maintenance of mechanical systems. It involves the production and usage of heat and mechanic ...

Mechanism

A mechanism is a mechanical device for doing something. It includes the idea of tools and machines, but is used for a wider range of objects, processes and ideas. Palaeolithic hand axes were one of the first tools used. Simple modern mechanisms w ...

Mechatronics engineering

Mechatronics is a combination of mechanical engineering, electronic engineering, computer engineering, control engineering, and systems-design engineering in order to design and manufacture some useful products. Mechatronics is an engineering sys ...

National Academy of Engineering

United States National Academy of Engineering, a private, non-profit institution that was founded in 1964. Election to the NAE is considered the highest achievement in engineering-related fields and often comes as a recognition of a lifetimes wor ...

National Research Council

National Research Council of USA is the working arm of United States National Academies, carrying out most of the studies done in their names. The National Research Council was organized in 1916 in response to the increased need for scientific an ...

Negative feedback

Negative feedback is a basic concept of cybernetics; it is the basis of regulation and control. It is important in engineering and physiology. In biology and physiology negative feedback is known as homeostasis. Negative feedback occurs when the ...

Nuclear engineering

Nuclear engineering is a field of engineering dealing with application of atomic nuclei breakdown and other sub-atomic physics, based on the principles of nuclear physics. It includes the interaction and maintenance of nuclear fission systems and ...

Orthographic projection

Orthographic projection is a way of showing a 3D object in 2D. It is a form of parallel projection, where the view direction is orthogonal to the projection plane.

Packaged terminal air conditioner

A packaged terminal air conditioner is a kind of self-contained heating and air conditioning system. It is commonly found in hotels, motels, senior housing facilities, hospitals, condominiums, apartment buildings, add-on rooms & sunrooms. Many PT ...

Pelton wheel

The pelton wheel is a kind of water turbine. It is used in power plants, to convert a water flow into a movement of a wheel. Lester Alan Pelton invented it in the 1870s. In a regular wheel for example of a mill, the energy is obtained from the we ...

Perforated pipe

Perforated pipe is a pipe fitting that is made from perforated sheet and is often used as filter tubes but also used for various installments. It comes in various forms, mostly round and square sections.

Perpetual motion

Perpetual motion refers to a movement that goes on forever once started without additional energy added. A machine that could be set in motion once would continue to move forever. Such a device or system would be against the law of conservation o ...

Phasor

A phasor is a tool in mathematics. It is used to show numbers in a different coordinate system. Certain electronic components have models that can be described more easily by the use of phasors. Inductors add a +90º "phase", while capacitors add ...

Pipe (material)

A pipe is a tube or hollow cylinder for the transport of fluid. The terms pipe and tube can be used for the same objects. Pipe is generally specified by the internal diameter whereas tube is usually defined by the outside diameter but may be spec ...

Piping and instrumentation diagram

A piping and instrument diagram is a simplified illustration or diagram of a process. It shows the required functional equipment and instrumentation to make the process work. Typically, this document is the basis of design for plant engineering.

Planform

In design planform or plan view is a vertical orthographic projection of an object on a horizontal plane, like a map. In aviation, a planform is the shape and layout of an airplanes wing. Of all the myriad planforms used, they can typically be gr ...

Plans (drawings)

Plans are a set of two-dimensional diagrams or drawings used to describe a place or object, or to communicate building or fabrication instructions. Usually plans are drawn or printed on paper, but they can take the form of a digital file.

Plasticity (physics)

Plasticity, or plastic deformation, is the ability of a solid material to have a permanent change in shape. In physics and materials science, this is called deformation. For example, a solid piece of metal being bent or pounded into a new shape s ...

Power consumption

In electrical engineering, power consumption refers to the electrical energy per unit time, supplied to operate something, such as a home appliance. Power consumption is usually measured in units of watts or kilowatts. The energy used by equipmen ...

Pump-jet

A pump-jet or water jet is a marine system that creates a jet of water for propulsion. The mechanical arrangement may be a propeller with nozzle, or a centrifugal pump and nozzle. Pump jets have some advantages over bare propellers for certain ap ...

Recording

Recording means to capture data to store it on a storage medium or record. Historical records of events have been made for thousands of years. Amongst the earliest are cave painting, runic alphabets and ideograms. Technology continues to provide ...

Resilience

Resilience generally means the ability to recover from some shock or disturbance. There are different meanings for resilience in psychology: the mental ability to recover quickly from depression, illness or misfortune resilience of a system: the ...

Resistance welding

Resistance spot welding is a process in which metal surfaces are joined by the heat gained from resistance to an electric current. It is in the group of electric resistance welding.

Second moment of area

The moment of force about any point is the product of the force and perpendicular distance between them. If this first moment is again multiplied by the perpendicular distance between them, the product so obtained is called the second moment of f ...

Software engineering

Software engineering is a field of engineering, for designing and writing programs for computers or other electronic devices. A software engineer, or programmer, writes software and compiles software using methods that improve it. Better quality ...

Soil classification

Soil classification means that one finds categories of soils that are based on general characteristics as well as criteria that decide about the use that is possible. Soil classification can be approached from both the perspective of pedogenesis ...

Spillway

A spillway is a construction to release extra water from a dam, in a way that this water does not cause damage. Each dam has a maximum capacity. Water that is more than this capacity cannot be stored, and has to be released. A spillway allows to ...

Spoke

A spoke is one of several rods radiating from the center of a wheel, connecting the hub with the round traction surface. The term originally meant the portions of a log which one had split lengthwise into four or six sections. The radial members ...

Spring (device)

A spring is a device typically made of metal, usually steel. The metal can be compressed squeezed. When the compression force is removed, the spring returns to its original length. The metal is usually spring steel, and it is wound tightly. There ...

Standard temperature and pressure

In order to be able to reproduce experiments, standard conditions for temperature and pressure have been defined in different fields of science. Very often these are also called standard temperature and pressure. The table below gives some examples:

Stress (mechanics)

Stress is the force per unit area on a body that tends to cause it to change shape. Stress is a measure of the internal forces in a body between its particles. These internal forces are a reaction to the external forces applied on the body that c ...

Structural engineering

Structural engineering is a subset of civil engineering dealing with the design and analysis of buildings and large non-building structures to withstand both the gravity and wind loads as well as natural disasters. Besides, it may also cover desi ...

Structural load

Structural loads or actions are forces, deformations, or accelerations applied to a structure or its components. A load is the amount of weight a structure has to carry. Loads cause stresses, deformations, and displacements in structures. Structu ...

Structural pipe fitting

Structural pipe fitting is a pipe used for various structures. A Structural pipe fitting, also known as a slip on pipe fitting, clamp or pipe clamp is used to build structures such as handrails, guardrails, and other types of pipe or tubular stru ...

Suspension (vehicle)

Suspension is the term given to the system of springs, shock absorbers and linkages. The suspension acts as an intermediate between the car and the road and solves several problems: Ensures acceptable running smoothness, compensates for uneven pa ...

Test bay

A test bay is an area used in engineering. It can be a hall, laboratory or even a department. At these places, the produced materials are tested before delivery. To test them, testing guidelines of industry or this firm are used. The test bay is ...

Thermal efficiency

The thermal efficiency is a dimensionless performance measure of a thermal device such as an internal combustion engine, a boiler, or a furnace, for example. The input, Q i n {\displaystyle Q_{in}\,}, to the device is heat, or the heat-content of ...

Torque

In physics, torque is the tendency of a force to turn or twist. If a force is used to begin to spin an object, or to stop an object from spinning, a torque is made. The force applied to a lever, multiplied by the distance from the levers fulcrum, ...

Torque converter

A torque converter, or torque multiplier, is a device for multiplying torque. It is widely used in transmission systems for road and rail vehicles with internal combustion engines.

Transmission

In mechanics, a transmission or gearbox means gears working together. The most common transmission is the transmission in a car. In a car, the engine makes the crankshaft spin. The crankshaft makes the transmissions gears spin, which spin some mo ...

Turbine

A turbine is an engine that turns fluid movement into energy. Simple turbines have a shaft with a blade on it. Moving fluids, such as water or air, push the blades so that they turn around with the shaft. The turning movement is most often used t ...

Two-wheel drive

Two-wheel drive describes vehicles in which, in theory, two wheels receive power from the engine at the same time. Usually the two wheels are on the same axle in the drivetrain. Most vehicles with two-wheel drive are mainly for use on roads and h ...

Water supply system

A water supply system or water supply network is an engineering system which provides a supply of water. A water supply system typically includes: Water pressurizing by such as pumping stations are usually needed at the outlet of underground or a ...

Wind engineering

Wind engineering studies effects of wind on the buildings and its possible damage or problems to their inhabitants. From the point of structural engineering, it is interested in strong winds, which may cause discomfort, as well as extreme winds, ...

Ethnography

Ethnography is a kind of anthropology. Ethnographers study specific cultures. Ethnography mostly uses participant observation. The researcher becomes part of the setting or mixes with the people being studied. They try to record patterns of socia ...

Auto-ethnography

Auto-ethnography is a method of social research whose defining characteristic is that the author links personal experience and autobiography with social, political, and cultural concepts. Its difference from ethnography is the high degree of subj ...