This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
HighTemperature Superconducting Cables . Crosssection of hightemperature superconducting cable design invented at NIST In the center are copper wires bundled with nylon and plastic insulation The outer rings are series of superconducting tapes wrapped in spirals around the copper The cable is millimeters in outer diameter See also