Michael Gambon played the role of John Harrison, the English innovator who first created the accurate watch needed to satisfy the Longitude Act based on the rotation of the Earth at a rate of 15 degrees per hour and one complete rotation in 24 hours-based on RA/Dec.
https://www.youtube.com/watch?v=scnDFP-gafc
The equally admirable actor Brian Cox played his detractor on the Longitude Board with the same insidious vehemence shown to the principles of planetary dynamics and the 24-hour watch that contributors here show today with their silly misadventure
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