Dihelion is our well-known dual sundial design, which reads solar time and solar declination. It is impossible to take this photo in the normal way because the sundial is too close to the house, and there is nowhere to stand. So the photo was taken by holding the camera against the house and shooting blind. At a first attempt, the picture has turned out well. Continue reading
dihelion
Time lapse study of shadows and how a sundial reads the time
There are many interpretations of how well a sundial reads the time. It is often thought the smallest increment of time on a sundial will be around two minutes. This is because the large diameter of the sun gives a fuzzy edge to the time shadow. Our study looked at the shadow Continue reading
Summer solstice and a silver sundial
Summer Solstice 2020 in Edinburgh was a day of beautiful sunshine. What could be a better time to show off our Dihelion dual sundial, which can read the solstice and the equinox seasons and the daytime hours. Shifting patterns of sunlight and shadow and petals of the sunflower show through so clearly. There is a lovely Continue reading