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...works best on materials with a high electrical conductivity, such as aluminium, copper, brass and low carbon steel. The resistivity of material is best if it is less than 15 x 10-6 Ω cm. Materials of poor conductivity, such as stainless steels, can be formed by using a highly conductive driver, such as aluminium sheet, or a specially built high frequency machine....

...working in a lab. ] Forensic science, or forensics, is the application of science to establish how historical events occurred and thereby provide impartial evidence that can be used in a court of law. Science can be defined as the collection of information through systematic experimentation and observation. Science often involves the detailed study of natural or man-made...