The Colby Baseline

Описание к видео The Colby Baseline

200 years ago in 1824, Major Thomas Colby was placed in charge of the survey of the island of Ireland. His starting point was Magilligan Point in County Derry. He trained surveyors in a methodology and division of labour that would guarantee consistency across the entire survey in Ireland. His design of the ‘compensation bars’ for measuring the baseline on the shore of Lough Foyle had an exceptional level of accuracy.

Find out more: https://www.rte.ie/brainstorm/2024/06...

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