{"podcast":{"title":"Interesting Things with JC","slug":"interesting-things-with-jc-5049896","podcast_index_feed_id":5049896,"rss_url":"https://jimconnors.net/?format=rss","website_url":"https://jimconnors.net/","image_url":"https://images.squarespace-cdn.com/content/v1/5bba2d6fca525b3efa21591f/1641345203068-7ISWC2M7C29QNG3DNOMY/Ray_Effect_for_Backgrounds_Transparent_PNG_Clip_Art_Image-01.jpg?format=1500w","author":"JC","episode_count":300,"summary":"Interesting Things with JC is a new podcast mini series, with highlight on some of the more interesting historical stories, current events as well as under-told stories.","last_synced_at":"2026-06-13T14:21:59.479211+00:00","page_url":"https://stenobird.com/podcast/interesting-things-with-jc-5049896"},"episode":{"title":"1648: \"Why Are Manhole Covers Round?\"","slug":"1648-why-are-manhole-covers-round","published_at":"2026-05-10T07:00:47+00:00","page_url":"https://stenobird.com/podcast/interesting-things-with-jc-5049896/1648-why-are-manhole-covers-round","show_page_url":"https://stenobird.com/podcast/interesting-things-with-jc-5049896","url":"https://jimconnors.net/interesting-things-with-jc/2026/5/10/1648-why-manhole-covers-are-round","audio_url":"https://static1.squarespace.com/static/5bba2d6fca525b3efa21591f/t/69ffc4a55375d140d88231f1/1778369707527/1648+-+Interesting+Things+-+Why+Are+Manhole+Covers+Round.mp3","summary":"Interesting Things with JC #1648: \"Why Are Manhole Covers Round?\" – A heavy cover sits over a city access hole, but its shape keeps it from dropping into the tunnel below; the same circle also spreads traffic force and lets workers roll 90-to-250-pound cast iron through the street. This episode is inspired by Mr. Paul.","meta_description":"Interesting Things with JC #1648: \"Why Are Manhole Covers Round?\" – A heavy cover sits over a city access hole, but its shape keeps it from dropping into…","key_points":[],"chapters":[],"topics":[],"duration_seconds":147,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/interesting-things-with-jc-5049896/episodes/1648-why-are-manhole-covers-round/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/interesting-things-with-jc-5049896/1648-why-are-manhole-covers-round.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}