Arthur Doodson: The Man Who Weighed the Tide
Profile of Arthur Thomas Doodson (1890–1968): the Bidston mathematician whose rigorous analysis still runs inside every tide app on your phone.
People
The humans behind and around the brass: Doodson the mathematician, the instrument makers who cut the gears, and the women computers whose ledgers turned machine output into the tables sailors trusted. History remembers Kelvin; this shelf remembers everyone else too — the workshops, the computing rooms, and the families whose initials fill the logbooks. Start with Doodson for the mathematics, the craftsmen for the metal, and the women computers for the hands that finished the work.
Women Computers of the Tide Offices
The hidden workforce of brass prediction: the women who analysed records, checked machine output, and compiled the tide tables sailors trusted.
Who Built the Machines? The Craftsmen Behind the Brass
Beyond Kelvin and Doodson: the instrument makers — White, Légé, Fischer — whose gear-cutting skill decided whether a predictor told the truth.
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