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Rating
4.9from
This podcast has
437 episodes
Language
EnglishPublisher
John Leeman and Shannon DulinExplicit
No
Date created
2015/01/16
Latest episode
2026/10/02
Average duration
54 min.
Release period
28 days
Description
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.
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Episode 435 - “FIRE THE LASERS!”
2026/10/02
Jezero crater is a really interesting place on Mars - that's why we have landed so many spacecraft in the area. This week we talk about some exciting findings from the crater as well as a modern day twist on a modest proposal.
Jezero Crater
Fun Paper Friday
In a twist on an old tale, this authors examine how applying ethical matricies to AI driven questions can still result in questionable outcomes - like grinding up the geezers.
Keyes, Os, Jevan Hutson, and Meredith Durbin. "A mulching proposal: Analysing and improving an algorithmic system for turning the elderly into high-nutrient slurry." Extended abstracts of the 2019 CHI conference on human factors in computing systems. 2019.
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
@dontpanicgeo
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
Episode 434 - "darkness sometimes brings profundity"
2026/09/19
How do you know if your cool new result is real or just some artifact? Is it data or noise, and are those not always so dissimilar? This week we tackle that along with how good your BS detector is.
Fun Paper Friday
Is your BS just BS or fake profundity?
Pennycook, Gordon, et al. "On the reception and detection of pseudo-profound b******t." Judgment and Decision making 10.6 (2015): 549-563.
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
@dontpanicgeo
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
Episode 433 - "2 totally useless degrees "
2026/09/11
Wildfires can change the landscape and have geologic implications. Also, what makes your sneakers squeak, and what does that have to do with earthquakes?
Fun Paper Friday
A peek into the physics of squeaky sneakers
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
@dontpanicgeo
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
Episode 432 - "Like walking around inside someone's mouth"
2026/08/28
This week we recap the GEARS 2026 workshop, our return from summer break, how hot it has been, and chat about floods of the 1300's in Europe.
GEARS Workshop
Fun Paper Friday
Kiss, Andrea, et al. "Cascading continental-scale floods across Europe in 1342–1343." Nature (2026): 1-8.
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
@dontpanicgeo
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
Episode 431 - Philippines Earthquake
2026/06/26
There was a very large earthquake in the Philippines - John and Shannon break down what you need to know. We also explore the question - what's the deal with birds?
Fun Paper Friday
Baldassarre, Daniel T. "What’s the Deal with Birds." Sci J Res Rev 2 (2020): 1-4.
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
@dontpanicgeo
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
Episode 430 - "I am being ambushed"
2026/06/05
This week John and Shannon discuss the book "Slow Productivity", our other summer reading lists, and if swearing makes your exercise sessions better.
Fun Paper Friday
Jiannine, Lia, and Jose Antonio. "The effects of cursing on exercise performance." Journal of Exercise Physiology Online 26.5 (2023).
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
@dontpanicgeo
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
Episode 429 - "Summer Shorts" GPR
2026/05/29
This week we talk about GPR or ground penetrating radar as Shannon considers buying one and asks what to look for.
Fun Paper Friday
Do trees glow before lightning strikes?
McFarland, P. J., et al. "Corona discharges glow on trees under thunderstorms." Geophysical Research Letters 53.4 (2026): e2025GL119591.
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
@dontpanicgeo
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John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
428: Episode 428 - "Pedagogical Gold"
2026/05/15
This week we talk about how you should approach an outcrop in the field for the first time. What do you look for? What kind of notes do you take? This and more field camp tips plus a discussion about the rheology of pasta sauce.
Fun Paper Friday
Busiello, Daniel Maria, Vincenzo Maria Schimmenti, and Ivan Di Terlizzi. "Physical properties of a perfect pasta sauce." Physics Today 2026 (2026).
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
@dontpanicgeo
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
Episode 427 - "Feeding Tubes Yo!"
2026/03/28
This week we help a listener identify their bizarre fossil - and it's a trace fossil! Learn all about it and find out if you'd remember more if we were funnier!
Trace Fossil Dictionary
Shannon’s Favorite Trackway
Asterosoma
Fun Paper Friday
Would you remember more about science if your teachers presented it in a funny way?
Frank, Alexandra L., et al. "Wit meets wisdom: the relationship between satire and anthropomorphic humor on scientists' likability and legitimacy." Journal of Science Communication 24.1 (2025): A04.
Episode 426 - "Hard K Sound is Hilarious"
2026/03/13
This week, we continue to talk about temperature with a discussion of temperature scales, where they came from, and why there are so many!
Fun Paper Friday
Kaiser, Caspar, and Andrew J. Oswald. "The scientific value of numerical measures of human feelings." Proceedings of the National Academy of Sciences 119.42 (2022): e2210412119.
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
@dontpanicgeo
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
Episode 425 - "How jiggly are your bits?"
2026/02/06
What is temperature? Why do we care? Where did all of these temperature scales come from? This week, we find out!
Fun Paper Friday
Di Lorenzo, Emilia, et al. "Periodic cooking of eggs." Communications Engineering 4.1 (2025): 1-10.
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
@dontpanicgeo
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
Episode 424 - "Aunt Betty" Liquefaction
2026/01/30
This week it's all about liquefaction as we explore why some caskets are above ground and how some cars get half way buried.
Flame Structure
Sand Boil
Quicksand
Fun Paper Friday
Can creatively shaped pasta fold itself when cooked?
Tao, Ye, et al. "Morphing pasta and beyond." Science Advances 7.19 (2021): eabf4098.
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
@dontpanicgeo
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
Episode 423 - "The rumors of our death"
2026/01/10
We are back after a very challenging 2025 but don't panic - there is a plan!
Fun Paper Friday
Taloni, Andrea, Vincenzo Scorcia, and Giuseppe Giannaccare. "Large language model advanced data analysis abuse to create a fake data set in medical research." JAMA ophthalmology 141.12 (2023): 1174-1175.
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
@dontpanicgeo
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
Episode 422 - "Melissa"
2025/11/07
We're still here - it has just been a very difficult time, but this week we're talking about Hurricane Melissa and Halloween Candy!
Hurricane Melissa
Video Inside the Hurricane
Fun Paper Friday
Trick or Treat! Maybe it should be Treat or Toy? Find out in this week's Fun Paper!
Schwartz, Marlene B., Eunice Y. Chen, and Kelly D. Brownell. "Trick, treat, or toy: children are just as likely to choose toys as candy on Halloween." Journal of nutrition education and behavior 35.4 (2003): 207-209.
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
@dontpanicgeo
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
Episode 421 - "Come work for you"
2025/09/19
This week, we chat about our GEARS workshop that recently wrapped up, how it has evolved, and how it went!
GEARS Workshop
Fun Paper Friday
Hejnol, Andreas, and Mark Q. Martindale. "The mouth, the anus, and the blastopore—open questions about questionable openings." Animal Evolution: Genomes, Fossils, and Trees (2009): 33-40.
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
@dontpanicgeo
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
Podcast reviews
Read Don't Panic Geocast podcast reviews
Jinksy79 2020/11/27
Perfect travel listening
John and Shannon are so fun to listen to while traveling to and from school. They make difficult concepts easier to understand.
Desire T 2020/04/08
Great banter
I listen during the data entry parts of work and it keeps me entertained. I laughed out loud at the one newton in a square meter = a pascal joke.
Johnny Franks489865226 2017/08/20
Love the banter
Great, topical insight on geoscience with fun hosts.
Steve at Starsend 2017/03/02
A real pleasure to listen to
I'm not in the earth sciences but I'm really enjoying this podcast. Shannon and John are very informative and entertaining and have found a way to sp...
OntheUp&Up 2016/02/12
Fantastic!
I absolutely love this podcast! Audio quality is excellent and easy to hear/understand. The content is interesting and entertaining, often centering o...
Jabittan 2016/01/20
Really Interesting Show, A Great Listen!
I have absolutely zero geological science background, but the hosts of the show do a great job explaining everything and helping me follow along. The...
Devinchi42 2015/12/02
Makes my geek side happy!
Love it!! I listened to a couple episodes, and wasn't sure, but they quickly had me hooked. I am not a Geo-scientist, or Meteorologist, nor do I pla...
C.J.A.1.2 2015/03/23
Good technical discussions
I like this podcast. I think that most geoscientists, naturalists, and students of Earth Science would - give it a try.
AllAboutThatQuake 2015/02/11
Great and conversational!
The Don’t Panic Geocast is full of useful information for anyone in geoscience. Great discussion of meteorology, geology, and a mix of other sciences...
Hsrabinowitz 2015/02/10
Great for geoscientists and non-geoscientists alike!!
This podcast really feels like you're just sitting around chatting over a cup of coffee. They do a great job bringing together exciting new (and revie...
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