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Title: Marin Mersenne performing an experiment.
Caption: Engraving depicting Marin Mersenne performing an experiment to prove the rotation of the earth: ball fired from vertical cannon did not fall back down the barrel. Marin Mersenne (1588-1648) a French theologian, philosopher, mathematician and music theorist. Dated 17th Century.
Credit: Album / Universal Images Group / Universal History Archive \ UIG
Image size: 6263 × 3348 px | 60.0 MB
Print size: 53.0 × 28.3 cm | 2465.7 × 1318.1 in (300 dpi)