We uncover phantom cities defined by riverine logic: buried systems (medieval rivers and culverted canals), drowned landscapes (post-glacial river basins now submerged), and canalized rivers forgotten in the city’s routine. From Perugia’s 13th-century aqueduct to London’s Lost Rivers and modern restoration efforts, archaeology, geophysics, and proactive urban design are reviving these invisible streams to inform resilient futures. Note: This podcast was AI-generated, and sometimes AI can mak...
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We uncover phantom cities defined by riverine logic: buried systems (medieval rivers and culverted canals), drowned landscapes (post-glacial river basins now submerged), and canalized rivers forgotten in the city’s routine. From Perugia’s 13th-century aqueduct to London’s Lost Rivers and modern restoration efforts, archaeology, geophysics, and proactive urban design are reviving these invisible streams to inform resilient futures. Note: This podcast was AI-generated, and sometimes AI can mak...
Dracula's Chivito: The Giant Edge-On Disk Where Planets Form
Intellectually Curious
4 minutes
5 days ago
Dracula's Chivito: The Giant Edge-On Disk Where Planets Form
Today we explore Dracula's Chivito, the monster protoplanetary disk around a luminous young Herbig A star about 300 parsecs away. Named for Transylvania fangs and a famous Uruguayan steak sandwich, it’s one of the largest disks known around a massive star, with a radius near 1650 AU and a butterfly-shaped silhouette in Hubble images. Submillimeter data from SMA (and NOEMA) reveal CO gas in Keplerian rotation, confirming this is a genuine planet-forming disk rather than a dying nebula. The dis...
Intellectually Curious
We uncover phantom cities defined by riverine logic: buried systems (medieval rivers and culverted canals), drowned landscapes (post-glacial river basins now submerged), and canalized rivers forgotten in the city’s routine. From Perugia’s 13th-century aqueduct to London’s Lost Rivers and modern restoration efforts, archaeology, geophysics, and proactive urban design are reviving these invisible streams to inform resilient futures. Note: This podcast was AI-generated, and sometimes AI can mak...
