RefNo | AP/13/14/1 |
Level | Item |
Title | Unpublished manuscript, regarding the action of iron on the magnetic needle by John Macdonald |
Date | 12 January 1829 |
Description | Macdonald recounts the polarised effect of guns and iron on the magnetic needle in the binnacle on a ship's deck. He provides guidance for navigation at sea with the effect of these iron objects in mind.
Subject: Geodesy
Written by Macdonald in Summerlands, Exeter [Devon, England]. |
Extent | 41p |
Format | Manuscript |
PhysicalDescription | Ink on paper |
AccessStatus | Open |
RelatedRecord | AP/13/14 |
Fellows associated with this archive
Code | PersonName | Dates |
NA3036 | Macdonald; John (1759 - 1831) | 1759 - 1831 |