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Chapter 18 p43 Modern Materials. - Coggle Diagram

- - - - • Allow digital information to travel as pulses of light along thin glass strands at high speeds.
      - • Carry much more information than traditional copper wire, don’t suffer from electromagnetic interference that distorts signal.
      - • Inner glass core little thicker than human hair, can transmit light along its length by reflecting off the wall of cladding
      - • FO used transmit phone signals, internet comm., cable TV signals.
      - Fibre optics information
      - • Fibre optics, clear glass fibre core in glass cladding, covered with strengthening fibres and plastic jacket. Flexible cable capable transferring digital data fast speeds, light + images sent and received. Used for data transfer cables, endoscopic cameras, novelty and bespoke lighting displays.