The internet is a truly incredibly thing, but we all hate it when it works too slowly. That’s where optical fibres come in. Made of a high quality extruded glass called silica, they guide light through a process of refraction, and in doing so are able to transmit bandwidths at a remarkably high speed and over remarkably long distances. As such, they are used in telecommunications and computer networking to speed up internet connections, able to do so due to the fact that the total internal refraction of light means very little data is lost. And the best thing about optical fibres is when at Imperial College London they were first demonstrated to be able to ‘bend’ light by Harold Hopkins and Narinder Kapany, dubbed the ‘founding father of fibre optics’.