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Corps of Discovery: Chronometer

Meriwether Lewis was encouraged to take a chronometer to assist with accuracy of longitudinal measurements and navigation. It proved less than practicable for the journey requiring continual winding and having vulnerabilities to fine particulate matter (sand). The corps abandoned use of the instrument half way across.

Based on a design from Europe but made in Philadelphia. It would have been similar in appearance to the instrument shown below:

By Farooq Hussain

Author, scientist, lives in Chevy Chase, Maryland, USA. King’s College, University of London, Architectural Association School, London, St. Martin’s School of Art, London, Kent College, Canterbury.

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