{"podcast":{"title":"The Sound Around Us!","slug":"the-sound-around-us-5981081","podcast_index_feed_id":5981081,"rss_url":"https://media.rss.com/e-music/feed.xml","website_url":"https://rss.com/podcasts/e-music","image_url":"https://media.rss.com/e-music/20230120_110115_65b785c75a777379695a8c6858d37fb1.jpg","author":"E-Music","episode_count":2032,"summary":"\"Sound Around Us\" is a podcast that explores the various sounds in our environment and the impact they have on our daily lives. From the chirping of birds in a park to the hum of traffic on a busy street, the podcast delves into \"The Sound Around Us\", where the pun was most definitely intended! The program includes distinctive sounds from all around the world with a focus on allowing listeners to feel new emotions just by listening. The podcast seeks to increase listeners' awareness of how important sound is in creating our environment and to inspire people to pay closer attention to the noises they are surrounded by. Overall, music plays a huge role in our lives! Everywhere we turn, from the contemporary world to mother nature herself, we see it. Watch this space for weekly updates!","last_synced_at":"2026-08-01T06:19:31.096889+00:00","page_url":"https://stenobird.com/podcast/the-sound-around-us-5981081"},"episode":{"title":"Engineering Insights S2 E72 | Revolving Door Systems | The Engineering Behind Doors That Never Really Open","slug":"engineering-insights-s2-e72-revolving-door-systems-the-engineering-behind-doors-that-never-really-open","published_at":"2026-07-30T19:48:53+00:00","page_url":"https://stenobird.com/podcast/the-sound-around-us-5981081/engineering-insights-s2-e72-revolving-door-systems-the-engineering-behind-doors-that-never-really-open","show_page_url":"https://stenobird.com/podcast/the-sound-around-us-5981081","url":"https://rss.com/podcasts/e-music/3036109","audio_url":"https://pdcn.co/e/content.rss.com/episodes/182253/3036109/e-music/2026_07_30_19_40_39_66226e61-2af5-49d4-a657-61de59d35a00.mp3","summary":"You walk toward the entrance. The door is already moving. Without stopping, you step inside, rotate through the building, and emerge on the other side. No one has to hold the door. No blast of outside air rushes into the lobby. And people can enter and leave almost continuously. It seems simple. But revolving doors are one of the most cleverly engineered entrances ever designed. We examine the basic mechanics of revolving doors, including the central shaft, rotating wings, bearings, drive systems, and enclosure that allow people to move through the entrance while maintaining a nearly constant seal between the inside and outside of the building. But revolving doors do much more than move people. They dramatically reduce the exchange of indoor and outdoor air. We explore how this helps buildings reduce heating and cooling losses, improve energy efficiency, maintain interior comfort, and lower operating costs throughout the year. We also look at the engineering challenges involved in designing doors that can safely accommodate thousands of people every day. Sensors detect pedestrians. Speed controls prevent dangerous movement. Emergency stop systems provide protection. Modern automatic revolving doors constantly monitor their surroundings while coordinating motors, brakes, and safety devices. Accessibility is another major design challenge. Engineers must account for people using wheelchairs, walkers, strollers, luggage carts, and other mobility devices. Many buildings combine revolving doors with swinging automatic doors to provide multiple entrance options while maintaining energy efficiency. We also explore how revolving doors help control pressure differences inside tall buildings. In skyscrapers, pressure changes caused by temperature and wind can create powerful dra…","meta_description":"You walk toward the entrance. The door is already moving. Without stopping, you step inside, rotate through the building, and emerge on the other side. No…","key_points":[],"chapters":[],"topics":[],"duration_seconds":2927,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/the-sound-around-us-5981081/episodes/engineering-insights-s2-e72-revolving-door-systems-the-engineering-behind-doors-that-never-really-open/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/the-sound-around-us-5981081/engineering-insights-s2-e72-revolving-door-systems-the-engineering-behind-doors-that-never-really-open.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}