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Description: | Portable ring sun dial. A small traveller's sundial; early 19th century. Two brass rings swing out at 90 degrees to each other to make an open sphere with a radial metal slider. The date is set on the slider; the sun shines through a hole in it and on to
"Portable ring sundial (c1750)"
Author: Inglis,Jim & Curtis,Neil Date: 1990 Purpose: Encyclopaedia of the North-East
"Before mechanical clocks or watches were widely available, ways of telling the time of day or of timing an event were varied. Various devices, such as sundials, could measure the position of the sun, others measured the passage of time. Portable sundials were very common before watches were available. This is a small traveller's sundial dating from the the early 19th century. It is the armillary type, a portable style known as a universal ring dial because it can be used at any latitude. It comprises two brass rings which swing out at 90 degrees to each other, to make an open sphere, with a radial metal slider. The date is set on the slider and the sun shines through a hole in it and on to the outer rings so the time can be read. It belonged to King's College, Aberdeen University."
Author: Feilden,Rosemary Date: 1999 Purpose: SCRAN
Acquisition source: King's College Old Aberdeen | License: | http://www.abdn.ac.uk/historic/Copyright_terms_conditions.shtml | Publisher: | ABDUA University of Aberdeen, Marischal Museum | Rights holder: | 47718 | Temporal: | 1730-1770 | Source: | University of Aberdeen | Identifier: | http://calms.abdn.ac.uk/Geology/dserve.e... | Go to resource |
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