The prototype

Video

Even with something as simple as a sundial, at this scale, you want to be sure everything works like the manual says it will.

Early in 2012 Dr Peter Kovesi was working on the design of the ‘moving parts’ of the sundial.

Here is a timelapse movie of the sundial recorded on 20th May 2012. The movie starts (with a picture of me checking the camera) at about 1.15pm, sunset is at 5.25pm. The camera battery ran out at about 1 hour before sunset… It is interesting to see that the gnomon remains visible despite being shaded by foliage at times.