Friday 28 December: it’s a “get away from the turkey” day out, to the Northern Mill Engine Society’s museum in Bolton, Lancs (I should say “Greater Manchester”). It’s open to visitors on Wednesdays and Saturdays throughout the year – and has five two-day steaming events such as this one. It’s a magnificent collection of machines which, in motion, are quite mesmeric – it’s a real pleasure just to watch and listen. So instead of photos, here’s a video compilation of preserved steam-powered northern mill engines in action.