Friday 26th September 2025, 11.20am (day 5,146)
A city the size of London is going to need a lot of water. And unlike, say, Manchester, there are no high hills particularly nearby, in which one can build reservoirs and let gravity do quite a bit of the work of moving that water to where it is needed (water comes all the way to Manchester from the Lake District a hundred miles away through gravity alone). Therefore, some serious pumping is required. What used to be the Kew Bridge pumping station, and is now the London Water and Steam Museum, contains the biggest beam engine ever built, a gargantuan see-saw with a steam engine at one end and the pump at the other. That colossal object was impossible to photograph adequately, but these instruments will do.
Being 42 