eddy current
121Ted McKeever — Infobox Comics creator name = Ted McKeever imagesize = caption = birthname = birthdate = location = deathdate = deathplace = nationality = American area = Artist, Writer alias = notable works = Plastic Forks Metropol awards = website = Ted… …
122Inductor — An inductor is a passive electrical component designed to provide inductance in a circuit.Inductors store energy in a magnetic field created when an electric current flows through them. They are usually implemented by some sort of coiled… …
123Donald E. Bently — is an American entrepreneur and engineer, best known as the founder and former owner of Bently Nevada Corporation where he performed pioneering work in the field of instrumentation for measuring the mechanical condition of rotating machinery. He… …
124Earth exploration — Introduction the investigation of the surface of the Earth and of its interior. By the beginning of the 20th century most of the Earth s surface had been explored, at least superficially, except for the Arctic and Antarctic regions. Today the… …
125materials testing — Introduction measurement of the characteristics and behaviour of such substances as metals, ceramics, or plastics under various conditions. The data thus obtained can be used in specifying the suitability of materials for various… …
126Induction coil — An induction coil or spark coil (archaically known as a Ruhmkorff coil) is a type of disruptive discharge coil. It is a type of electrical transformer used to produce high voltage pulses from a low voltage DC supply. To create the flux changes… …
127Remote field testing — (RFT) is an electromagnetic method of nondestructive testing whose main application is finding defects in steel pipes and tubes. RFT may also referred to as RFEC (remote field eddy current) or RFET (remote field electromagnetic technique). An RFT …
128Classical electromagnetism and special relativity — This article is about the contribution of special relativity to the modern theory of classical electromagnetism. For the contribution of classical electromagnetism to the development of special relativity, see History of special relativity. For a …
