colourful wires held as a bunch CC BY SA by https://www.flickr.com/photos/brewbooks/7780990192/in/photolist-cRzBij-cTKQSE-dx7S9e-dEynqt-9ABvuD-e45wz2-dW4LYV-djdSUj-GM5her-neVccP-2SVjky-rScq2r-5UATws-3pcHxt-kFnpQn-7Bf9z-ngYzuZ-3KWeLU-7LFVGn-ckSN53-poVcLj-neXcse-6ujL-2Zu8ns-bGywMv-9V9gMq-5TtB4G-Km4B5-5j3uR2-rQT3gb-4QQbk8-aD8nhY-6H8qEM-oDkNvU-cG5jK-7RuPrD-4EemKw-cJLbD7-eRZ4Hv-rgdmNG-ehLZ85-djdVZR-hLAXT-7SKjvz-a24kW3-eRZ4DM-4yBUMa-ahSFwB-2GvEY-dSiqdL