If that sounds a bit random, there is a reason for putting it there – Faraday worked out of Trinity Buoy Wharf for some years, helping to develop lighthouses, in between inventing the Faraday Cage – a structure based on Benjamin Franklin’s somewhat risky studies in storm-management (using kites) ensuring that lightning or other electromagnetic charges strike round something rather than through it, and discovering the Faraday Effect, which is something to do with the polarisation of light in relation to magnetic fields, the details of which, frankly, evade me.

Faraday’s work on the Trinity Buoy Wharf lighthouses (my favourite mental image is definitely of how they were tested – some poor sod used to be sent up to Shooters Hill of dark winter’s night to see if they could spot it…) is being celebrated in this minute work of art – with the usual sound effects, words, images and atmosphere – and it’s really rather fun. The artist has a beautiful (but tricky to navigate) website here