spark

spark

An electrical discharge between two electrodes or points within a circuit having a difference of electrical potential. A spark normally has a very short duration and produces intense heat, light, and electromagnetic radiation that cover a wide band of frequencies. A spark is used inside the cylinder of an internal combustion engine to ignite the fuel-air mixture. A discharge of lightning is an extremely large spark.

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Industry/Domain: Aviation
Category: Aeronautics
Company: Aviation Supplies & Academics
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Industry/Domain: Natural environment Category: Volcano

volcanic crater

A volcanic crater is a circular depression in the ground caused by volcanic activity. It is typically a basin, circular in form within which occurs a ...