
Don't Panic Geocast
John Leeman and Shannon Dulin discuss geoscience and technology weekly for your enjoyment! Features include guests, fun paper Friday selections, product reviews, and banter about recent developments. Shannon is a field geologist who tolerates technology and John is a self-proclaimed nerd that tolerates geologists.
Latest episodes

Oct 4, 2024 • 50min
Episode 397 - "Terps"
This week, we delve into the fascinating world of the ancient dwelling mounds—terps—of the northern Netherlands. These man-made mounds served as elevated homes for communities living in low-lying, flood-prone areas. Join us as we explore the geology of these mounds, why they were essential for survival, and how modern technology is used to monitor soil subsidence and preserve these unique archaeological sites.
Learn More:
Wierdenland Museum: Information about the museum and its exhibits on dwelling mounds.
Late-Holocene sea-level reconstruction and sedimentological data: An in-depth academic article on the evolution of the coastal landscape and sea-level changes influencing terp construction.
Fun Paper Friday Summary:
In this episode’s Fun Paper Friday, we discuss B.F. Skinner’s “Pigeons in a Pelican.” The paper recounts the story of "Project Pigeon," a World War II experiment that explored using pigeons to guide missiles by pecking at visual targets. Though the project faced skepticism and was never implemented in combat, it highlighted the potential of animal training and laid a foundation for behaviorist research. The study is a testament to how creative ideas can push the boundaries of science, even if they seem outlandish at first.
Skinner, B. F. (1960). Pigeons in a Pelican.

Sep 6, 2024 • 54min
Episode 396 - "Please Don't Call the FBI" GEARS 2024
This week John and Shannon summarize the GEARS 2024 workshop, lessons learned, and talk about a record air pressure that was just a fluke.
Fun Paper Friday
Bureau of Meteorology says quality checks reveal air pressure record not broken, miscalculations published online
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John Leeman
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@geo_leeman
Shannon Dulin
@ShannonDulin

Aug 23, 2024 • 40min
Episode 395 - "Pressure Finds a Way"
Learn about the explosion at Yellowstone's Biscuit Basin site and what it means for the park. We also talk about drunk fruit flies and what they are teaching us about alcoholism.
Fun Paper Friday
Heberlein, Ulrike. "Genetics of alcohol-induced behaviors in Drosophila." Alcohol Research & Health 24.3 (2000): 185.
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John Leeman
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@geo_leeman
Shannon Dulin
@ShannonDulin

Aug 17, 2024 • 44min
Episode 394 - "Gates of Hell" Darvaza Gas Crater
This week we look at a geological oddity in Turkmenistan and see how getting a puppy can give you the blues.
Video of the Burning Crater
Fun Paper Friday
Ståhl, Aada, et al. "Development and validation of the puppy blues scale measuring temporary affective disturbance resembling baby blues." npj Mental Health Research 3.1 (2024): 27.
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John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin

Jul 26, 2024 • 1h 11min
Episode 393 - "Fujiwhara Effect!" Twisters Movie Review
We went to watch Twisters and review it from the standpoint of two people who have chased storms professionally. Also what do philosophers have to say about the original movie and its mythological reconsiliations?
Fun Paper Friday
King, Geoff. "The scientist as pioneer hero: Hollywood's mythological reconciliations in twister and contact." Science as Culture 8.3 (1999): 371-379.
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John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin

Jul 13, 2024 • 45min
Episode 392 - "Revisions"
This week we talk about when and how things get revised from classes to papers to theories. Also we read a paper about a curious cure for poisoning.
Fun Paper Friday
Sasanami, Misa, et al. "Oral ethanol treatment for ethylene glycol intoxication." Cureus 12.12 (2020).
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John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin

Jun 29, 2024 • 32min
Episode 391 - "The Things We Take For Granted"
This week we discuss JMARS and how you can explore the planets at home with just a few clicks of the mouse. Field camp is almost over and we'll be back to our regular shorts soon!
JMARS Site
Fun Paper Friday
What happens when scientists look for a fast cup of cold brew coffee? Ultrasonic experiments of course!
Chiu, Shih-Hao, et al. "Coffee brewing sonoreactor for reducing the time of cold brew from several hours to minutes while maintaining sensory attributes." Ultrasonics Sonochemistry 106 (2024): 106885.
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John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin

May 25, 2024 • 30min
Episode 390 - "Stretch Aquarium"
What is a flume and how do sedimentologists used them to understand depositional systems? This and how likely you are to be bitten by a rattlesnake if you step on it in this summer's first Don't Panic Summer Short!
emriver
St. Anthony Falls Lab
Fun Paper Friday
WPR News Article
Morris, M. Cale. "Rattlesnakes in the Classroom: A Research-based Model for
Educational Outreach Programs." Biology of Rattlesnakes II
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John Leeman
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@geo_leeman
Shannon Dulin
@ShannonDulin

May 18, 2024 • 53min
Episode 389 - "FieldVolt"
Stop losing power and data in the field. John and Shannon discuss the new FieldVolt open power standard.
FieldVolt Standard
Fun Paper Friday
Dean, Isabelle, and Michael T. Siva-Jothy. "Human fine body hair enhances ectoparasite detection." Biology letters 8.3 (2012): 358-361.
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John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin

May 3, 2024 • 1h 9min
Episode 388 - "Screaming Eagle"
This week John and Shannon talk about what some of the weird weather radar terms that get thrown around mean and how you can use them to keep up with storms impacting you. Then things get morbid with a mouse experiment that ended in an idiocrasy style extinction.
Fun Paper Friday
Calhoun, John B. "Death squared: the explosive growth and demise of a mouse population." (1973): 80-88.
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John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin