Fiber optics. Photo by Flickr user Tony Webster. https://www.flickr.com/photos/diversey/17906943729/in/photolist-thnLv8-fVw6ok-7CqCFF-o5yiuk-fNtLkF-dw6ikx-8ZoE5r-dwbQNG-7Cusjq-7CuskC-7CqCJ8-7CqCPP-7CqCNB-7CusgW-7CusdQ-7CqCMr-o8fNck-iDgFi-8ThW3s-8ThVjA-8ThVDd-gd8Tj1-kN3u9h-4vKurW-gd8Pse-6rZbmG-aenLqe-aeqzrA-ciJ7kj-7VYqDq-7VYqNf-7VVaqD-7VVb1H-7VVaXH-7VVaMe-7VYqsE-7VVaxP-7VVaUk-7VVaHr-7VVb8r-7VYqAm-oo9sTu-gd98LE-gd8TXW-93Coc9-isDigF-isBAag-8Y1VpT-8GxQxt-8NbmjH
Fiber optics. Photo by Flickr user Tony Webster. https://www.flickr.com/photos/diversey/17906943729/in/photolist-thnLv8-fVw6ok-7CqCFF-o5yiuk-fNtLkF-dw6ikx-8ZoE5r-dwbQNG-7Cusjq-7CuskC-7CqCJ8-7CqCPP-7CqCNB-7CusgW-7CusdQ-7CqCMr-o8fNck-iDgFi-8ThW3s-8ThVjA-8ThVDd-gd8Tj1-kN3u9h-4vKurW-gd8Pse-6rZbmG-aenLqe-aeqzrA-ciJ7kj-7VYqDq-7VYqNf-7VVaqD-7VVb1H-7VVaXH-7VVaMe-7VYqsE-7VVaxP-7VVaUk-7VVaHr-7VVb8r-7VYqAm-oo9sTu-gd98LE-gd8TXW-93Coc9-isDigF-isBAag-8Y1VpT-8GxQxt-8NbmjH