Chronometer
From Bidston Observatory
Revision as of 08:16, 9 February 2024 by Wave Follower (talk | contribs) (Created page with " During the latter part of the 19th century, ships' sextants would have been brought to Bidston Observatory for setting accurate Greenwich Mean Time and rating. Rating inclu...")
During the latter part of the 19th century, ships' sextants would have been brought to Bidston Observatory for setting accurate Greenwich Mean Time and rating. Rating included checking the temperature response of the sextant using the 'hotbox' developed by the Obsevatory
