Browse Reference Articles
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Mechanical engineering
Mechanical engineering is a very broad field of engineering that involves the application of physical principles for analysis, design, manufacturing, and maintenance of mechanical ... > more -
Three-phase electric power
Three-phase is a common method of electric power transmission. It is a type of polyphase system used to power motors and many other devices. Three phase has properties that make it very desirable in ... > more -
Temperature
Temperature is the physical property of a system which underlies the common notions of "hot" and "cold"; the material with the higher temperature is said to be hotter. Physically, temperature is a ... > more -
Weapons Technology
Nuclear Energy
Renewable Energy
Energy and the Environment
Physics
Environmental Science
Effects of nuclear explosions
A nuclear explosion occurs as a result of the rapid release of energy from an uncontrolled nuclear reaction. The driving reaction may be nuclear fission, nuclear fusion or a multistage cascading ... > more -
Energy and the Environment
Renewable Energy
Solar Energy
Geomagnetic Storms
Environmental Science
Sustainability
Solar power
Solar power (also knows as solar radiation or insolation) is energy from the sun. This energy, in the form of heat and light, supports all life on Earth, drives the Earth's climate and weather and is ... > more -
Breaking wave
In physics, a breaking wave is a wave whose amplitude reaches a critical level at which some process can suddenly start to occur that causes large amounts of wave energy to be dissipated. At this ... > more -
Shock wave
In a supersonic flow the compression of a nonreacting gas can be most simply modelled as an isentropic or Prandtl-Meyer compression, or as a shock wave. When an object (or disturbance) moves faster ... > more -
Parachuting
Parachuting, or skydiving, is an activity involving the breaking of a free-fall from a height using a parachute. Today it is performed as a recreational activity and a competitive sport, as well as ... > more -
Sonic boom
A sonic boom is the audible component of a shock wave in air. The term is commonly used to refer to the air shocks caused by the supersonic flight of military aircraft or passenger transports such as ... > more
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