sundials
NT Washington Old Hall:1676 dial
This three-faced dial had been well looked after and carefully displayed, but had only part of one gnomon surviving. The plan was to make a much better display of the valuable artefact.
I measured the hour angles of the south face carefully to establish what latitude the dial had been designed for and was pleased to find that it could well have been made locally. From this it was possible to calculate the correct height for the east and west gnomons, which were renewed in brass to match the surviving fragment.
The dial is shown here in its new position, mounted in full sun above a newly formed gateway into the orchard.