{"id":618825,"date":"2026-01-18T19:24:01","date_gmt":"2026-01-18T18:24:01","guid":{"rendered":"https:\/\/cronologia-universale.it\/1681-2\/"},"modified":"2026-01-18T19:24:01","modified_gmt":"2026-01-18T18:24:01","slug":"1638-4","status":"publish","type":"post","link":"https:\/\/cronologia-universale.it\/en\/1638-4\/","title":{"rendered":"1638"},"content":{"rendered":"<p>Galileo Galilei, convinced that the speed of light is finite, proposes a method to measure it by synchronizing the flashes of two lanterns on two very distant hills (obviously he fails, since the speed of light is finite, but much higher than he believed).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Galileo Galilei, convinced that the speed of light is finite, proposes a method to measure&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[35],"tags":[],"class_list":["post-618825","post","type-post","status-publish","format-standard","hentry","category-ev-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - 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