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Flammarion engraving, Paris 1888 Anonymous - Camille Flammarion, L'Atmosphère: Météorologie Populaire (Paris, 1888), pp. 163. The Flammarion engraving is a wood engraving by an unknown artist that first appeared in Camille Flammarion's L'Atmosphère: Météorologie populaire (1888). The image depicts a man crawling under the edge of the sky, depicted as if it were a solid hemisphere, to look at the mysterious Empyrean beyond. The caption underneath the engraving (not shown here) translates to "A medieval missionary tells that he has found the point where heaven and Earth meet..."

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    Project Gutenberg (gutenberg_org@mastodon.social)'s status on Friday, 02-May-2025 18:48:14 JST Project Gutenberg Project Gutenberg

    Ideas ‘of pure genius’ – how astronomers have measured the Universe across history

    by Terence Tao and Grant Sanderson

    https://aeon.co/videos/ideas-of-pure-genius-how-astronomers-have-measured-the-universe-across-history

    #astronomy #historyofscience

    In conversation about 13 days ago from mastodon.social permalink
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