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    • Close up image of five copper wires.
    Rights: Demarco, licenced through 123RF Ltd Published 2 September 2010 Size: 200 KB Referencing Hub media

    Copper is a metal that is a very good conductor of electricity. It has electrons that are free to move within the material.

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      ARTICLE

      Super sense – an introduction to artificial sensors

      Monitoring our world using artificial sensors Artificial sensors enable us to overcome the limitations of our human senses and extend them in novel and useful ways, using the scientific concepts ...

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      2. ARTICLE

      Electricity and sensors

      All materials are made up of tiny particles called atoms. Atoms are made up of even smaller particles called protons, neutrons and electrons. The protons found in the atom have a positive charge ...

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