Who would have thought that I'd enjoy a talk about cleaning? At yesterday's Behind Closed Doors event Frances Yeo, curator at Lydiard House (and STEAM Museum) explained how she and her staff care and clean the collection. There were quite a few surprises in store, but it all made perfect sense. She explained why visitors might notice a discreet coating of dust on some of the surfaces and the less obvious that surface is, the thicker the dust - but as Frances explained, this isn't lazy housekeeping. Dragging a cloth across a dusty table top can cause an amazing amount of damage. Apparently dust isn't a problem until it is several layers deep and this could take up to two years to accumulate. So no need to dust every week then - which has been my argument for, well a lot longer than two years! Frances explained all about heat, humidity and light recordings and the difficult job of coping with the antiquated heating system in Lydiard House. The niceties of when t...