Episodios

  • Episode 416 - "Life is a Physics Exam"

    Episode 416 - "Life is a Physics Exam"
    May 16 2025
    This week we talk about how we power our instruments in the field and all of the weird and wonderful ways they fail. Including getting turned into charcoal by lightning! Fun Paper Friday Why does ketchup splatter? Find out! Arstechnica Article (https://arstechnica.com/science/2022/11/the-physics-of-keeping-those-last-bits-of-ketchup-from-splattering/) Cuttle, Callum, and Christopher W. MacMinn. "Dynamics of compression-driven gas-liquid displacement in a capillary tube." Physical Review Letters 130.11 (2023): 114001. (https://arxiv.org/pdf/2112.12898) Contact us: Show Support us on Patreon! (https://www.patreon.com/dontpanicgeo) www.dontpanicgeocast.com (http://www.dontpanicgeocast.com) @dontpanicgeo (https://twitter.com/dontpanicgeo) dontpanicgeocast@gmail.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_leeman (https://twitter.com/geo_leeman) Shannon Dulin - @ShannonDulin (https://twitter.com/ShannonDulin)
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    55 m
  • Episode 415 - "Fiat 500 Volcanic Bomb"

    Episode 415 - "Fiat 500 Volcanic Bomb"
    Apr 25 2025
    This week we talk hail, Vesuvius, volcanic bombs, and vitrified brains. Scandone, Roberto, Lisetta Giacomelli, and Mauro Rosi. "Death, Survival and Damage during the 79 AD Eruption of Vesuvius which destroyed Pompeii and Herculaneum." J. Res. Didact. Geogr 2 (2019): 5-30. (https://www.researchgate.net/publication/337768981_Death_Survival_and_Damage_during_the_79_AD_Eruption_of_Vesuvius_which_destroyed_Pompeii_and_Herculaneum) Fun Paper Friday An amazing new finding shows that brains were vitrified or turned to glass during the nearly 2000 year old eruption of Vesuvius. Giordano, Guido, et al. "Unique formation of organic glass from a human brain in the Vesuvius eruption of 79 CE." Scientific Reports 15.1 (2025): 5955. (https://www.nature.com/articles/s41598-025-88894-5.pdf) Mt Vesuvius (https://en.wikipedia.org/wiki/Mount_Vesuvius) Plinian (https://en.wikipedia.org/wiki/Plinian_eruption) Contact us: Show Support us on Patreon! (https://www.patreon.com/dontpanicgeo) www.dontpanicgeocast.com (http://www.dontpanicgeocast.com) @dontpanicgeo (https://twitter.com/dontpanicgeo) dontpanicgeocast@gmail.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_leeman (https://twitter.com/geo_leeman) Shannon Dulin - @ShannonDulin (https://twitter.com/ShannonDulin)
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    48 m
  • Episode 414 - "Closed Because of Landslide"

    Episode 414 - "Closed Because of Landslide"
    Apr 18 2025
    Shannon's class took a trip to study catestrophic sedimentation... and they found it! John switched back to a Mac after 5 years. Join us for these and other exciting updates! Fun Paper Friday Find out how alcohol and an eye puffer machine cominbed with magnets can teach us about where our motor skills reside in the brain. Johansson, Fredrik, et al. "Alcohol impairs learning and timing of conditioned eyeblink responses." Brain Research 1854 (2025): 149545. (https://www.sciencedirect.com/science/article/pii/S0006899325001039) Contact us: Show Support us on Patreon! (https://www.patreon.com/dontpanicgeo) www.dontpanicgeocast.com (http://www.dontpanicgeocast.com) @dontpanicgeo (https://twitter.com/dontpanicgeo) dontpanicgeocast@gmail.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_leeman (https://twitter.com/geo_leeman) Shannon Dulin - @ShannonDulin (https://twitter.com/ShannonDulin)
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    1 h y 5 m
  • Episode 413 - "Waterfalls I Have Loved"

    Episode 413 - "Waterfalls I Have Loved"
    Apr 4 2025
    Turner Falls, Oklahoma A rare waterfall that grows outward due to travertine deposition instead of eroding backward. Formed by spring-fed Honey Creek flowing through Ordovician limestone, creating massive travertine deposits. Pe'ePe'e Falls, Hawai'i (Big Island) ~80 ft falls in downtown Hilo, part of the Wailuku River flowing between Mauna Kea and Mauna Loa. Carved into 10,000-year-old lava flows with subsequent flows creating the Boiling Pots — vertical and horizontal lava tubes. Extremely dangerous, especially after storms — known as the deadliest water in Hawai'i. Cataratas do Iguaçu, Brazil/Argentina Largest waterfall system in the world, spanning the Argentina-Brazil border. Name means "Big Water" in Guarani. Upstream from the Itaipu Dam, which generates most of Paraguay’s electricity. Itaipu — the 3rd largest hydroelectric plant globally and 2nd in power output. Bonus Waterfalls Mentioned: Cascata delle Marmore, Italy – Ancient Roman-engineered waterfall. Natural Falls - West Siloam Springs, OK Devil’s Kettle, Minnesota – Mysterious waterfall where water seems to disappear underground. Fun Paper Friday What can spacecraft learn from cats? Zhang, Li, et al. "Analysis of Cushioned Landing Strategies of Cats Based on Posture Estimation." Biomimetics 9.11 (2024): 691. (https://www.mdpi.com/2313-7673/9/11/691) Contact us: Show Support us on Patreon! (https://www.patreon.com/dontpanicgeo) www.dontpanicgeocast.com (http://www.dontpanicgeocast.com) @dontpanicgeo (https://twitter.com/dontpanicgeo) dontpanicgeocast@gmail.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_leeman (https://twitter.com/geo_leeman) Shannon Dulin - @ShannonDulin (https://twitter.com/ShannonDulin)
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    58 m
  • Episode 412 - "Unpopular Flavor of Capri Sun"

    Episode 412 - "Unpopular Flavor of Capri Sun"
    Mar 8 2025
    This week we talk about snow forecasting as the winter season starts to wrap up and try to figure out if you're really happier in the morning or not! Fun Paper Friday https://mentalhealth.bmj.com/content/28/1/e301418 (https://mentalhealth.bmj.com/content/28/1/e301418) Contact us: Show Support us on Patreon! (https://www.patreon.com/dontpanicgeo) www.dontpanicgeocast.com (http://www.dontpanicgeocast.com) @dontpanicgeo (https://twitter.com/dontpanicgeo) dontpanicgeocast@gmail.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_leeman (https://twitter.com/geo_leeman) Shannon Dulin - @ShannonDulin (https://twitter.com/ShannonDulin)
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    49 m
  • Episode 411 - "TSA Does Not Care About Your Data "

    Episode 411 - "TSA Does Not Care About Your Data "
    Feb 14 2025
    Ever wondered how geologists figure out when a landslide happened? Or how ancient river terraces and glacial deposits get dated? This week, we dive into the detective work behind dating geomorphic features! 🌍🔬 From tree rings to cosmic rays, we explore the fascinating methods geologists use to reconstruct Earth’s history and assess natural hazards. Why Dating Landslides and Other Features is Hard Landslides can reactivate multiple times, fluvial deposits get reworked, and glacial features have complex histories. What are we really dating—the event, the material, or the last exposure? Dating Techniques in Geology Dendrochronology 🌲 – Tree rings reveal landslides, floods, and debris flows. Radiocarbon Dating 💀 – Organic material like charcoal and buried soil horizons provide time markers. Optically Stimulated Luminescence (OSL) 🌞 – Measures when quartz grains were last exposed to sunlight. Cosmogenic Nuclide Dating ☄️ – Tracks surface exposure using cosmic rays. Other Methods – Lichen growth, volcanic ash layers, and earthquake trenching. Fun Paper Friday Ever wondered if your favorite neon-orange snack has hidden superpowers? This study explores how strongly absorbing molecules, like those found in food dyes, can reduce light scattering in biological tissues—making them temporarily more transparent! Researchers applied tartrazine (a common food coloring) to live mice and were able to see internal structures like blood vessels without invasive procedures. The discovery could improve biomedical imaging, but we’re mostly just fascinated that Dorito dust might have unexpected side effects! Ou, Zihao, et al. "Achieving optical transparency in live animals with absorbing molecules." Science 385.6713 (2024): eadm6869. (https://doi.org/10.1126/science.adm6869) Contact us: Show Support us on Patreon! (https://www.patreon.com/dontpanicgeo) www.dontpanicgeocast.com (http://www.dontpanicgeocast.com) @dontpanicgeo (https://twitter.com/dontpanicgeo) dontpanicgeocast@gmail.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_leeman (https://twitter.com/geo_leeman) Shannon Dulin - @ShannonDulin (https://twitter.com/ShannonDulin)
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    45 m
  • Episode 410 - "GEARS OIL UTEP"

    Episode 410 - "GEARS OIL UTEP"
    Feb 7 2025
    We just wrapped up our first-ever on-site GEARS Workshop at UTEP and it was a massive success! 🎉 Tune in as we break down the highlights, what we learned, and how this hands-on geoscience training is evolving for the future. Fun Paper Friday Can paranormal lights actually be tied to earthquakes? Hough, Susan E. "Haunted Summerville: Ghostly Lights or Earthquake Lights?." (https://pubs.geoscienceworld.org/ssa/srl/article-pdf/doi/10.1785/0220240442/7096603/srl-2024442.1.pdf) Contact us: Show Support us on Patreon! (https://www.patreon.com/dontpanicgeo) www.dontpanicgeocast.com (http://www.dontpanicgeocast.com) @dontpanicgeo (https://twitter.com/dontpanicgeo) dontpanicgeocast@gmail.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_leeman (https://twitter.com/geo_leeman) Shannon Dulin - @ShannonDulin (https://twitter.com/ShannonDulin)
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    48 m
  • Episode 409 - "Resolutions"

    Episode 409 - "Resolutions"
    Jan 24 2025
    This week, it's time for our 2025 resolutions show, where we see how we can improve this year and discuss everything that's changed in the past year! Fun Paper Friday We are all overloaded with surveys and requests, but can a chocolate bar increase the response rates? Jamtvedt, Gro, et al. "Chocolate bar as an incentive did not increase response rate among physiotherapists: a randomised controlled trial." BMC research notes 1 (2008): 1-4. (https://bmcresnotes.biomedcentral.com/counter/pdf/10.1186/1756-0500-1-34.pdf) Contact us: Show Support us on Patreon! (https://www.patreon.com/dontpanicgeo) www.dontpanicgeocast.com (http://www.dontpanicgeocast.com) @dontpanicgeo (https://twitter.com/dontpanicgeo) dontpanicgeocast@gmail.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_leeman (https://twitter.com/geo_leeman) Shannon Dulin - @ShannonDulin (https://twitter.com/ShannonDulin)
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    1 h y 7 m
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