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Project Gutenberg (gutenberg_org@mastodon.social)'s status on Friday, 02-May-2025 18:48:14 JST 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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1. 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..."
  https://files.mastodon.social/media_attachments/files/114/437/484/476/995/419/original/d65d5f16c2fdd31a.jpg
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  Ideas ‘of pure genius’ – how astronomers have measured the Universe across history | Aeon Videos
  
  from aeonmag
  
  An awe-inspiring look at how scientific knowledge builds upon itself gradually – one ingenious measurement at a time

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