John Leeman and Shannon Dulin
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.
Author
John Leeman and Shannon Dulin
Category
Podcast website
Latest episode
Jun 26, 2026
Where to listen?
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Episodes
Episode 131 - "Geology is hard to grock" Carolina Bays 11.08.2017 48:06
John and Shannon address a listener question from Mike and then talk about where to find intelligent life. MetPy Mondays #1 Carolina Bays Episode 18 - Titan Dunes Fun Paper Carolina Bays (Wikipedia) Radiocarbon dating Optically stimulated luminescence Palynology Younger Dryas Fun Paper Friday Thanks to listener Jonathan for this thought provoking fun paper on life in the universe and where to find...
Episode 130 - "Aspire Towards Accuracy" Chris Taylor 04.08.2017 49:31
This week Chris Taylor joins us to talk about making scientifically accurate gifts. We also learn how ants can modify the world around us. Rachio Chris Taylor Taylor Custom Chris’ Comic Book Ant Colony Casting Fun Paper Friday Thank you listener Martin! Dorn, Ronald I. “Ants as a powerful biotic agent of olivine and plagioclase dissolution.” Geology 42.9 (2014): 771–774. Contact us: Show - www.don...
Episode 129 - "I learned about rocks from a geophysicist" 28.07.2017 38:29
John is on the mobile device spirit quest again, Shannon graduated a student, and we both took a break to talk about transform faults. We also learned that they are very complicated! Transform Boundaires John Tuzo-Wilson Reid’s elastic rebound theory Transform Faults (Good Wikipedia Illustrations) Fault Breccia Mylonite Pseudotachylite Fun Paper Friday Thanks to listener Mark, we’ll never sit at a...
Episode 128 - "Super awesome nerd fest" 21.07.2017 49:00
John just got back from SciPy and updates us on the state of scientific Python. SciPy 2017 Ryan and John’s talk on units John’s poster Katy Huff’s Keynote Sean Gulick’s Keynote nbgrader - Jess Hamrick Dask Scikit Learn Numba Katy Huff Interview (Episode 65) Fun Paper Friday What’s the chance that you bump noses on your next kiss? Can stats help reduce that? Find out on this week’s Fun Paper Friday...
Episode 127 - "Tectonic plate sized bulldozers" 07.07.2017 32:28
SciPy Abstracts Convergent Plate Boundaries Metamorphic Rocks Episode 55 (Plate Tectonics) Episode 116 - Metamorphic Rocks Critical Taper Theory Fun Paper Friday Are Sea Pickles just Sea Cucumbers that are really old? Find out on this week’s Fun Paper Friday! NOAA Press Release Livescience (better pictures) Contact us: Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - show@dontpanicg...
Episode 126 - "Quantitative Analysis of Cowbell" 30.06.2017 41:22
Boaty McBoatface Article Divergent Boundary Rocks Basin and Range formation (YouTube) Divergent plate boundary Pillow basalt Gabbro Aulacogen East African Rift Fun Paper Friday Thanks to listener Mark for the paper suggestion and to Steve for the new cowbell! Ronen, Eyal, et al. “IoT Goes Nuclear: Creating a ZigBee Chain Reaction.” IACR Cryptology ePrint Archive 2016 (2016): 1047. Embedded.fm #175...
Episode 125 - "Irony Abounds" Density Altitude 23.06.2017 30:14
This week it’s hot… so hot that some airplanes cannot takeoff. We talk about atmospheric density and density altitude, as well as look into some histograms of what’s in your bellybutton! Tropical Storm Cindy Just One Damned Thing After Another: The Chronicles of St. Mary’s Book One Density Altitude International Standard Atmosphere Height - Velocity Curves Density Altitude Crash Video Fun Paper Fr...
Episode 124 - “I leave you guys alone for three weeks” 16.06.2017 43:20
Shannon is back and we take some time to go over your feedback. Our email inbox was clogged all week, but should be running now, so get your sticker requests in! Embedded.fm 200th Episode FPF List John’s Timelapse Episode 12 - Tides Twain Harte Rock Exfoliating Fun Paper Friday Does jargon make you seem more or less professional? Found out in this week’s fun paper! Berman, Jessica R., et al. “Fell...
Episode 123 - "Large crushing amounts of Snow" Dr. Anandakrishnan 09.06.2017 1:01:53
This week, we mix things up a bit. This joint show between Embedded.fm and the geocast explores what happens when electrical engineering meets geoscience in cold places. We’re joined by guest Dr. Sridhar Anandakrishnan of Penn State to talk about geopebbles, ice, climate, and more! Asimov Robot Series Anthropornis (giant penguins) Ice crystal structure Ice streams GeoPebble Propeller Programming (...
Episode 122 - "The speed of sound in spaghetti" Open Source 02.06.2017 1:01:07
This week Shannon pops a surprise interview on John, asking all about open source. We talk about what it is, why people do it, and what it means for your cat videos. We round out the show talking about a physics problem that has stumped some of the greatest minds. EP 114 - “Chasrismatic Megafauna” (Flyover App) EP 177 - “Everything is a few weeks away” Open Drone Map Using Open Source Tools to Ref...
Episode 121 - "I don't see much difference between science and art" Uri ten Brink 26.05.2017 59:14
This week Dr. Uri ten Brink joins us to talk about his field experiences as an observational geophysicst and some thoughts about being a scientist. (Sorry, no fun paper this week - we were not able to record it before Shannon’s leave of absense!) Uri’s Homepage Walter Pitman Skua Cuddly Dudley South Pole Traverse Contact us: Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - show@dont...
Episode 120 - A Stork Visits: Rebroadcast "Dam Nation" 19.05.2017 42:59
Shannon just had a baby! We take the week off and celebrate with this classic episode of the geocast... Don't Panic, we'll be back next week! Having just got back from vacationing near a river, Shannon’s mind is wondering (and wandering!) about dams and their impacts, both good and bad. People use dams for electricity, recreation, flood control, and a myriad of other things. Let’s take a look at s...
Episode 119 - "When Nerds Have Research Instruments" Fulgurite 12.05.2017 43:27
John is installing his weather station and Shannon is still pushing through finals week. On this week’s show we talk about a listener question regarding fulgurites. Can you petrify lightning and study it? Thanks to listener Steve for the show topic and fun paper suggestion! Fulgarites Fulgurite (Wikipedia) Lechatelierite Planar deformation features Lightning induced remanent magnetizations...
Episode 118 - "One of those lies we tell in intro" 05.05.2017 46:03
John’s Hackaday Prize Entry New Prince Rupert’s Drop Video We Martians - Esker Questions Episode 92 - Martian Esker Fun Paper Earth Structure Structure of the Earth Pitch Drop Experiment Summary Pitch Drop Webcams Inge Lehmann Episode 4 - we talk about plate tectonics on the core “The Core” Movie Clip Episode 56 – “A lot people would like to think they’ve got a lunar meteorite” Brad Jolliff Fun Pa...
Episode 117 - "Everything is a few weeks away" Open Drone Map 28.04.2017 54:11
Drones are everywhere, but did you know you can recreate 3D point clouds with images taken from your drone? Episode 73 – “A gigapan from 1906” Open Drone Map Web ODM Example Data Hackaday Web ODM Open SFM Mapillary Missing Maps Pixhawk Flight Controller Cannon S110 Cannon S120 Cannon Hack Development Kit (CHDK) Zanzibar Mapping Initiative Fun Paper Friday Can Batman fly like in Batman Begins? John...
Episode 116 - "The closest thing to alchemy" 21.04.2017 43:22
Shannon takes one more field trip and John is ready to hit the road again, but we slow down to talk about metamorphic rocks - and probably get in trouble with the geochemists again. Fried Pies Metamorphic Rocks Metamorphic rock Pictures of metamorphic rocks Griggs apparatus Pole figures Example LPO paper Metamorphic facies Fun Paper Friday Listener Darryl send in this fun paper with a glowing revi...
Episode 115 - "The three horsemen of the academic apocalypse" 14.04.2017 46:55
John is off teaching a workshop and Shannon is working towards the end of the semester. We take a little time off to talk about academic service - what is it and why do we do it? Being an academic isn’t all fun and games! Feedback SEM time is expensive! BMJ’s Goofy Christmas Papers Academic Service Three horsemen: teaching, research, and service Manuscript Reviewers How Professors Spend Their Time...
Episode 114 - "Charismatic megafauna" with Shane Loeffler 31.03.2017 44:28
What is “flyover country”? Is it the states in the middle of the US? A band name? A geoscience education app? One of these is true and the creator joins us to chat about it. A big thank you to listener Gary for pointing us to this topic! Feedback Automatic bullseye moving dartboard Boiling liquid expanding vapor explosion Shane Loeffler Flyover Country App Macrostrat LacCore Lab Neotoma paleoecolo...
Episode 113 - "Enjoy your symbol of eternal love" Bowen's Reaction Series 24.03.2017 41:50
Pi-Hole MagicMirror Embedded.fm Making Embedded Systems Bullet vs. Prince Rupert’s Drop Bowen’s Reaction Series Wikipedia article Norman Bowen Geoman Article on Bowen’s Series Goldich dissolution series Gibb’s Free Energy Fun Paper Friday Can open table reservations be used to help determine how bad the flu is? Nsoesie, Elaine O., David L. Buckeridge, and John S. Brownstein. “Guess who’s not comin...
Episode 112 - "Enchantment Under the Troposphere Dance" 17.03.2017 45:25
Bombogenesis Stella’s Bombogenesis Explosive cyclogenesis Rossby Waves Smarter Every Day : Prince Rupert’s Drop GEMPAK Bergen School of Meteorology Norwegian Cyclone Model Trough Sanders, Frederick, and John R. Gyakum. “Synoptic-dynamic climatology of the “bomb”.” Monthly Weather Review 108.10 (1980): 1589–1606. Fun Paper Friday Freezing water can explode? Yep! Find out how in this week’s fun pape...
Episode 111 - "Adiabatman" 10.03.2017 55:02
John and Shannon both had windstorms this week and decided it was a great chance to talk about strange thermodynamics. Also halloween costumes and popcorn. Don’t miss this week’s mountain winds show! Mountain Winds Chinook Wind Adiabatic Process Lapse Rate Mountain waves Bora winds John’s UPS “Balloon Service" Chinook and Walla Walla brothers Fun Paper Friday Virot, Emmanuel, and Alexandre Ponomar...
Episode 110 - "An instrument at every Starbucks" Robert Busby 03.03.2017 1:10:12
This week we tackle a listener requested show - the transportable array! Join us as Robert Bubsy joins us to talk about managing the project. Transportable Array Robert Busby Wyoming telescope Judah Levine Sea ice data Depoloyment Timeline Tracking Hurricane Matthew with seismic noise Ground motion visualization Fun Paper Friday Mortimer, Nick, et al. “Zealandia: Earth’s Hidden Continent.” GSA Tod...
Episode 109 - "Really sad Michael Bolton music" Lauren and Dave Heerschap 24.02.2017 1:14:38
Lauren and Dave Heerschap Real Science Innovations LLC Rule of V’s Blocks Brunton Axis Video of Axis in Action Real Science Innovations YouTube Channel Fun Paper Friday Did mountains growing make our brains bigger? Explore this tongue in cheek paper on the geo-cranial relation. Get ready for a good chuckle! Molnar, Peter. “The rise of mountain ranges and the evolution of humans: a causal relation?...
Episode 108 - "Physics should work the same everywhere" 17.02.2017 52:40
John is defending his dissertation, so he prepares by describing it to you! Meseum of Osteology XKCD Thesis Defense Origin of the Thesis NZ Earthquake Lights Hydraulic Press Channel Biaxal deformation press Fun Paper Friday How can we understand the brain? Is a processor the same thing? This study examines the classic 6502. Economist Column Jonas, Eric, and Konrad Paul Kording. “Could a neuroscien...
Episode 107 - "How many will ever make a map?" Field Skills 10.02.2017 56:07
How many students will ever make a professional geologic map? Not many most likely. Is it still essential to learn? You bet! This week we discuss why and how it’s done. Field Methods Episode 32 Pocket Transit Manual Strike and Dip (YouTube) Interactive Grand Canyon Map PDF Grand Canyon Map Little Baldy Fun Paper Friday Slime molds predict best transportation routes? Internet comments misinterpret...
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