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Richard Helsham
(1683–1738)
British physicist; Regius Professor of Physic at the University of Dublin, Trinity College, from 1733 until 1738
Richard Helsham

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Works by this author published before January 1, 1924 are in the public domain worldwide because the author died at least 100 years ago. Translations or editions published later may be copyrighted. Posthumous works may be copyrighted based on how long they have been published in certain countries and areas.