

Don't Panic Geocast
John Leeman and Shannon Dulin
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.
Episodes
Mentioned books

Sep 11, 2021 • 51min
Episode 301 - "Lodestone"
Magnetism is a mysterious topic and it took a long time for us humans to understand just the basics. This week we look at the history of magnetism!
Fun Paper Friday
Can whale calls be useful for seismologists? Find out in this week's Fun Paper!
Kuna, Václav M., and John L. Nábělek. "Seismic crustal imaging using fin whale songs." Science 371.6530 (2021): 731-735.
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John Leeman
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Shannon Dulin
@ShannonDulin

11 snips
Sep 4, 2021 • 1h 1min
Episode 300 - "Rock can also act as a fluid"
Join the hosts as they celebrate their 300th milestone with laughter and reflection! Discover the fascinating world of ant societies, including their tunneling techniques that resemble earthquake mechanics. The hosts share memorable moments from past discussions and the impact of listener feedback. They also dive into the connection between geology and meteorology, illustrating the unique perspectives needed in their fields. Expect humor, nostalgia, and insights from a vibrant community passionate about geology!

Aug 21, 2021 • 1h 18min
Episode 299 - "Counterfeit Consciousness"
The GEARS workshop is over and we discuss what lessons were learned and how it went. Then we find out how some clever computer scientists found plagiarization in the literature.
Fun Paper Friday
Cabanac, Guillaume, Cyril Labbé, and Alexander Magazinov. "Tortured phrases: A dubious writing style emerging in science. Evidence of critical issues affecting established journals." arXiv preprint arXiv:2107.06751 (2021).
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John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin

Aug 13, 2021 • 59min
Episode 298 - "Little Nerd Arms"
It's hot! Learn about wet bulb temperature and what it means for your heat-stress this summer! It involves a lot of swinging of wet socks!
Fun Paper Friday
Tamm, Sidney L. "Defecation by the ctenophore Mnemiopsis leidyi occurs with an ultradian rhythm through a single transient anal pore." Invertebrate Biology 138.1 (2019): 3-16.
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John Leeman
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@geo_leeman
Shannon Dulin
@ShannonDulin

Jul 23, 2021 • 34min
Episode 297 - "Acid Gel" Shell Formation
How Seashells are Made
Johnson, Adam B., Nina S. Fogel, and J. David Lambert. "Growth and morphogenesis of the gastropod shell." Proceedings of the National Academy of Sciences 116.14 (2019): 6878-6883.
Addadi, Lia, et al. "Mollusk shell formation: a source of new concepts for understanding biomineralization processes." Chemistry–A European Journal 12.4 (2006): 980-987.
Fun Paper Friday
Thampi, Nisha, Lekha N. Villeneuve, and Yves Longtin. "Wash your hands, Brother John!." BMJ 367 (2019).
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John Leeman
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Shannon Dulin
@ShannonDulin

Jul 9, 2021 • 44min
Episode 296 - "Explosive Erosion"
Does the earth change rapidly or slowly? We discuss the competing philosophies and the evolution of.... well, the end of the road for your food!
Fun Paper Friday
Hejnol, Andreas, and José M. Martín-Durán. "Getting to the bottom of anal evolution." Zoologischer Anzeiger-a Journal of Comparative Zoology 256 (2015): 61-74.
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John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin

Jul 3, 2021 • 1h 12min
Episode 295 - "Touch the rocks"
Shannon is back from field camp (and another trip) and wants to talk about digital skills. Is field camp even necessary?
Fun Paper Friday
Fukada, Eiichi. "Piezoelectricity of wood." Journal of the Physical Society of Japan 10.2 (1955): 149-154.
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John Leeman
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@geo_leeman
Shannon Dulin
@ShannonDulin

Jun 19, 2021 • 52min
Episode 294 - "enormous catastrophe"
Earthquake shaking is often described on a "felt like" scale known as the Mercalli intensity scale. This episode we delve into the confusing history of the scale and what it really means.
Fun Paper Friday
Can your pasta be packed more efficiently? It can if it turns into its final shape during cooking!
Tao, Ye, et al. "Morphing pasta and beyond." Science Advances 7.19 (2021): eabf4098.
## Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
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@dontpanicgeo
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John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin

Jun 12, 2021 • 37min
Episode 293 - "Hot Hot Field Camp" Spontaneous Potential
What is spontaneous potential? It's an inexpensive technique to learn even more about the porosity, composition, and permeability of rock and soil.
Fun Paper Friday
Does your cat sit in boxes? Turns out, there's proof of why and that a cat's visual perception is quite sophisticated.
Smith, Gabriella E., Philippe A. Chouinard, and Sarah-Elizabeth Byosiere. "If I fits I sits: A citizen science investigation into illusory contour susceptibility in domestic cats (Felis silvestris catus)." Applied Animal Behaviour Science 240 (2021): 105338.
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John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin

May 29, 2021 • 1h 7min
Episode 292 - "Magic Math Stick"
This was supposed to be a show on Spontaneous Potential, but we'll get to that next week! We have a potpourri of things to cover and hope you'll enjoy our derailed train!
Fun Paper Friday
Telescopes for seals? It's true!
Mauck, Björn, et al. "How a harbor seal sees the night sky." Marine mammal science 21.4 (2005): 646-656.
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
SWUNG Slack
@dontpanicgeo
show@dontpanicgeocast.com
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin