{"version":"1.0","type":"rich","provider_name":"Acast","provider_url":"https://acast.com","height":250,"width":700,"html":"<iframe src=\"https://embed.acast.com/$/65a47774968ba8001771f445/69f07aa6253986c4de92c770?\" frameBorder=\"0\" width=\"700\" height=\"250\"></iframe>","title":"Episode 410: John Harrison’s Marine Chronometer","thumbnail_width":200,"thumbnail_height":200,"thumbnail_url":"https://open-images.acast.com/shows/65a47774968ba8001771f445/1777367654498-fffde24c-d865-4e22-b8b6-c1224d2dc024.jpeg?height=200","description":"<p>In this week's episode, get to know John Harrison, and understand how his pioneering marine chronometers finally solved the famous longitude problem and ushered in a new age of navigation at sea. </p>","author_name":"Riley Knight"}