Magnetics concept mirrors are based on continuous reflective surface motioned by magnetics actuators. Scientific programs principally included meteorology, hydrology, seismology, earth currents, and magnetics. EMTEC evolved from BASF Magnetics producing magnetic tapes. Falco's main business activities are the design and manufacture of power magnetics, semiconductors and circuitboards. The most important industries are machine assembly, semiconductors, injection moulding, magnetics, dyes, and shoe manufacturing. He had discovered electromagnetism, a fundamental interaction between electricity and magnetics. The control system was also updated with magnetic brakes provided by Velocity Magnetics. His areas of expertise, besides luminescence, were phosphor technology, magnetics and liquid crystal systems. CMC Magnetics Corporation () is a Taiwanese company that manufactures optical discs. The IEEE Magnetics Society is a professional society of the IEEE. In 1986, TDK acquired SAE Magnetics and introduced high-density recording heads to their product offerings. In 1991, Ampex sold their professional audio recorder line to Sprague Magnetics. SN3D stands for Schmidt semi-normalisation and is commonly used in geology and magnetics. Gravity and magnetics are also used, with considerable frequency, in oil and gas exploration. Another approach to geolocation couples light and magnetics.