Don't Panic Geocast

Episode 400 - "Mushroom Cloud of Salt"


Listen Later

Throughout human history, certain minerals have held immense power, shaping economies, societies, and entire civilizations. In this economic rocks series, John and Shannon discuss how essential minerals like salt, gold, and coal influenced historical events and continue to impact modern geopolitics. This week we start with salt and how it is essential to many aspects of our day to day.

Learn More
  • History of Salt in Ancient Civilizations - Learn how salt became an essential part of trade, diet, and religion in ancient China, Egypt, and Rome​:contentReference[oaicite:0]{index=0}.
  • The Role of Salt in the Roman Empire - Discover how the Roman Empire used salt as currency and a political tool to control its territories​:contentReference[oaicite:1]{index=1}.
  • The Impact of the Salt Trade in West Africa - Learn how salt was traded for gold and helped build the Ghana and Mali empires, creating a network of trade routes that shaped the region’s history​:contentReference[oaicite:2]{index=2}.
  • Fun Paper Friday

    This week's Fun Paper Friday features a study on the leaf-mimicking abilities of Boquila trifoliolata. The vine is capable of changing the shape and size of its leaves to resemble those of neighboring plants, potentially as a form of camouflage against herbivores. But the most surprising part? It can even mimic artificial plastic leaves. This finding challenges existing theories that leaf mimicry is driven solely by chemical signaling or genetic exchange between plants, suggesting instead that Boquila may possess a form of plant vision through specialized light-sensitive cells called “plant ocelli.” This discovery opens new possibilities for understanding plant sensory and adaptive behaviors.

    • White, J., & Yamashita, F. (2022). Boquila trifoliolata mimics leaves of an artificial plastic host plant. Plant Signaling & Behavior, 17(1), e1977530.
    • Contact us:

      Show

      • Support us on Patreon!
      • www.dontpanicgeocast.com
      • @dontpanicgeo
      • John Leeman

        • www.johnrleeman.com
        • @geo_leeman
        • Shannon Dulin

          • @ShannonDulin
          • ...more
            View all episodesView all episodes
            Download on the App Store

            Don't Panic GeocastBy John Leeman and Shannon Dulin

            • 4.9
            • 4.9
            • 4.9
            • 4.9
            • 4.9

            4.9

            45 ratings


            More shows like Don't Panic Geocast

            View all
            Radiolab by WNYC Studios

            Radiolab

            43,947 Listeners

            Freakonomics Radio by Freakonomics Radio + Stitcher

            Freakonomics Radio

            32,092 Listeners

            Wait Wait... Don't Tell Me! by NPR

            Wait Wait... Don't Tell Me!

            38,668 Listeners

            StarTalk Radio by Neil deGrasse Tyson

            StarTalk Radio

            14,299 Listeners

            Nature Podcast by Springer Nature Limited

            Nature Podcast

            763 Listeners

            Planetary Radio: Space Exploration, Astronomy and Science by The Planetary Society

            Planetary Radio: Space Exploration, Astronomy and Science

            1,356 Listeners

            The Amp Hour Electronics Podcast by The Amp Hour (Chris Gammell and David L Jones)

            The Amp Hour Electronics Podcast

            232 Listeners

            Universe Today Podcast by Fraser Cain

            Universe Today Podcast

            563 Listeners

            Embedded by Logical Elegance

            Embedded

            191 Listeners

            Science Magazine Podcast by Science Magazine

            Science Magazine Podcast

            820 Listeners

            Science Friday by Science Friday and WNYC Studios

            Science Friday

            6,377 Listeners

            Ologies with Alie Ward by Alie Ward

            Ologies with Alie Ward

            24,343 Listeners

            Daniel and Kelly’s Extraordinary Universe by iHeartPodcasts

            Daniel and Kelly’s Extraordinary Universe

            2,346 Listeners

            The Supermassive Podcast by The Royal Astronomical Society

            The Supermassive Podcast

            318 Listeners

            PlanetGeo: The Geology Podcast by Chris and Jesse

            PlanetGeo: The Geology Podcast

            246 Listeners