Sundials - World's Oldest Clocks

North American Sundial Society

London  

Sundial: 62
State/Province:  Ontario Country:  Canada
Dial Type:  Heliochronometer Condition:  Good
  Latitude and Longitude: 43° 0.354' N  81° 16.517' W
Location:
  • University of Western Ontario In Front of the Observatory and Astronomy Building
 
Description:
  • A brass Pilkington-Gibbs heliochronomer aligned to the celestial equator. Rotate the helioscope until the sun shines from the upper hole to the lower plate, then read the time from an accompanying dial. The Pilkington-Gibbs dial includes a patented cam mechanism to adjust for the Equation of Time.
 
General Information:
  • Owner: University of Western Ontario
  • Designer:
  • Builder:
 

Last Revised: 2019-07-31 21:28
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