Astronomy: two rival mathematicians, Urinaal and Raasbollius, argue about models of the solar system. Engraving by P. Tanjé, 1758, after C. Troost, 1741, after by P. Langendijk, 1715.

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Pieter Langendijk

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Images by Pieter Langendijk

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Astronomy: two rival mathematicians, Urinaal and Raasbollius, argue about models of the solar system. Engraving by P. Tanjé, 1758, after C. Troost, 1741, after by P. Langendijk, 1715.