John Leeman and Shannon Dulin

Don't Panic Geocast

Science EN ↓ 433 episodes

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

Science

Podcast website

www.dontpanicgeocast.com

Latest episode

Jun 26, 2026

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Episodes

Episode 156 - "Palinspastic Refactoring" 16.02.2018

This week John and Shannon dive into the world of cross-sections, the olympics, and more! Creating a cross section Cross-section example Strike and dip Brunton Axis Section restoration Fun Paper Friday Ever wonder if these catchy fun paper titles are effective and how common they are? This week’s author did! Goodman, Neville W. “From Shakespeare to Star Trek and beyond: a Medline search for litera...

Episode 155 - "This is going to look amazing on the TA" Kasey Aderhold 09.02.2018

Join our chat with Dr. Kasey Aderhold of IRIS this week as we talk about Alaskan earthquakes, the transportable array, and more! We also feature the shortest seismological abstract on record! Falcon Heavy Test Flight Kasey Aderhold Incorporated Research Institutions for Seismology M7.9 Event Page DART Buoy Network Strike Slip Faults IRIS Ground Motion Visualization @kaseyaderhold Kasey’s Website F...

Episode 154 - "It's raining Zircon" 26.01.2018

John and Shannon tackle a listener question about Zircon and then discuss the possibility of flying a drone on Titan. Shannon also ponders how long to wait for late students on field trips. Silicate Minerals Nesosilicates Brilliance, Luster, and Fire Mohs Scale Zircon Zonation Uranium-Lead Dating Laser Ablation Detrital zircon geochronology Tishomingo Granite Jack Hills Zircon Fun Paper Friday Dro...

Episode 153 - "Grad Student Instinct" 19.01.2018

John has been off at the American Meteorlogical Society Meeting and Shannon was in the field, so we discuss what we’ve been up to, some exciting announcements, and how fast the grim reaper walks. Don’t miss this week’s show! Spacepod 116 AMS Meeting AMS 98th Annual Meeting Anemoment FT Technologies Field Work Lake Mohave Magnetostratigraphy Geomagnetic Polarity Time Scale Safe use of HF Fun Paper...

Episode 152 - "I came back from that trip and changed my major" 12.01.2018

This week Dan Zietlow and Ryan Vachon join us to talk about outreach, scientific video making, and Dan Rather’s chat at AGU. Outreach Email: breaknsci@gmail.com YouTube Breaking Science Facebook Breaking Science @breaknsci Ryan’s Book - Science Videos Fun Paper Friday In a time of difficult communication and news, Dan Rather offered words of inspiration and vision at the AGU Annual Meeting. Dan Ra...

Episode 151 - "A 3 year old obsessed with dinosaurs" Dr. Helen Janiszewski 05.01.2018

Join us as Dr. Helen Janiszewski discusses the recent Deleware earthquake, subduction, and hurricanes! Dr. Helen Janiszewski Helen’s Website @helenjanisz USGS Earthquake Page Cascadia Initiative Fun Paper Friday When it rains, it pours… and the Earth sinks. Montanari, S. (2017), Weight of water dropped by Hurricane Harvey flexed Earth’s crust, Eos, 98, https://doi.org/10.1029/2017EO089015. Publish...

Episode 150 - "Submit this paper or quit my job" 22.12.2017

This week we reflect on our past goals and set some new ones for 2018 and the path to show 200! John Grow my business with the addition of two products See some of Colorado Read 15 Books Go Paperless for our personal and business records Get Back to the Blog /Newsletter ( Sign up! ) Write another proposal Learn more about web-app development Try swift programming Grow our audience more! Release mo...

Episode 149 - "Suppose you play a C-major chord" Waves Part 2 15.12.2017

Bill’s Trail Library Vibrations and Waves (A.P. French) Waves Part 2 Superposition Principle Interactive Guide to the Fourier Transform JPG Compression Fun Paper Friday Thanks to listener Darryl for sending in this fun paper about the number of toys and quality of play in toddlers. Dauch, Carly, et al. “The influence of the number of toys in the environment on toddlers’ play.” Infant Behavior and...

Episode 148 - "You don't think in per second" Waves Part 1 08.12.2017

This week we tackle a tough listener question about waves. What are they and how can we understand and use them? Find out on this week’s show! Don’t Panic Tee Shirts! Waves Complex numbers Wave properties illustrated (BBC) Engineer Guy Microwave Video Fun Paper Friday Does your dog give you puppy eyes? Learn more about that expression and scientific expression coding in this week’s fun paper frida...

Episode 147 - "We met in a digital bar" Earth ArXiv 01.12.2017

HP15C App Pythonista 3 Earth ArXiV Dr. Chris Jackson Dr. Tom Narock SHERPA/RoMEO EarthArXiv Fun Paper Friday This week we give you an excuse to eat chocolate and win a Nobel. “Chocolate Consumption, Cognitive Function, and Nobel Laureates,” Fanz H. Messerli, M.D. Spurious Correlations Contact us: Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - show@dontpanicgeocast.com John Leeman...

Episode 146 - "The graphics were so pretty" 24.11.2017

This week we keep chatting about what computational devices we want to carry and what our recommendations are. Apple Smart Keyboard Apple Pencil Microsoft Surface Fun Paper Friday Have you ever been in a mosh pit? One of us has, and we discuss this model of mosh pit activity in this week’s Fun Paper Friday! Huff Post Article Silverberg, Jesse L., et al. “Collective motion of humans in mosh and cir...

Episode 145 - "I just want to touch your insides" 17.11.2017

What operating system is best? Well, it’s complicated. This week we talk tech and science and how we work. Abstract Art Meets Atmospheric Science DOS PC GEOS Fun Paper Friday Nature writeup Haze heats Pluto’s atmosphere yet explains its cold temperature. Xi Zhang, Darrell F. Strobel, Hiroshi Imanaka. Nature 551, 352–355 (16 November 2017) doi:10.1038/nature24465 Contact us: Show - www.dontpanicgeo...

Episode 144 - "5, 6, 7 extra zeros" 10.11.2017

John is holed up working in his workshop and Shannon is preparing for the end of the semester. This week we take some time to talk about when nature out smarted all of us and created a natural nuclear reactor. Embedded 221 with Jimmy Soni Oklo Reactors Oklo Reactor Water as a neutron moderator Neutron poisoning Windscale fire CP1 Reactor Book: Atomic Awakening Fun Paper Friday The octopus has a fa...

Episode 143 - "A lot of flannel" GSA 03.11.2017

Shannon was off at GSA while John browsed the history of computing. We talk about our travels and celebrate with a discussion of champagne cork popping and thermodynamics. First Starbucks Store GSA Computer History Museum Diplocaulus (Boomerang Head) Red beds Fun Paper Friday Ever popped a champagne cork? This week we look at the thermodynamics behind the process and use John’s favorite tool - hig...

Episode 142 - "Albedo back in the day" 27.10.2017

This week we finish up talking about the faint young sun and how some corporations seem to have strange ways of communicating the climate risk that they’ve studied. Faint Young Sun Part 2 Faint Young Sun Paradox Albedo Main sequence Fun Paper Friday How did ExxonMobil do in its communications about climate change? Read all about it in this in-depth study! Supran, Geoffrey, and Naomi Oreskes. “Asse...

Episode 141 - "Linear if a geologist looked at it" Faint Young Sun Part 1 19.10.2017

Faint Young Sun LIGO Kilonova Greenhouse/Icehouse Earth Fun Paper Friday Stuck in traffic? At least now you know why! Hanna, Rema, Gabriel Kreindler, and Benjamin A. Olken. “Citywide effects of high-occupancy vehicle restrictions: Evidence from “three-in-one” in Jakarta.” Science 357.6346 (2017): 89–93. Contact us: Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - show@dontpanicgeoca...

Episode 140 - "Juicero of Tractors" Open Hardware Summit 13.10.2017

John and Shannon chat about the Open Hardware Summit in Denver and what it could mean for science. PhD Movie “Do You Expect Me to Just Give Away My Data?” 2017 OHS in Denver Doti Open Robotics Field Ready NGO IUWASH Program Conservify Fun Paper Friday Microbes can modify precipitation? Microbes can be transported by hurricanes and destory crops? Is it time to head to the bunkers? We talk about tha...

Episode 139 - Rebroadcast "At least there were functions" Greg Wilson 06.10.2017

John and Shannon are back to doing science instead of troubleshooting and take a break to talk with Dr. Greg Wilson about Software Carpentry, how to teach effectively, and a smattering of related topics about the academic world. Greg Wilson Software Carpentry Data Carpentry Library Carpentry It Will Never Work in Theory The Architecture of Open Source Applications Request a Software Carpentry Work...

Episode 138 - "Set your kids in front of it" GigaMacro 29.09.2017

This week Gene Cooper from GigaMacro joins us to talk about gigapan imaging, robotics, and how to really capture your samples! GigaMacro GigaMacro GigaPan GigaMacro Twitter GigaMacro Gallery Fun Paper Friday Brown, J. B. “Thermodynamics of a rubber band.” American Journal of Physics 31.5 (1963): 397–397. Applied Science Video Feynman on Rubber Bands  

Episode 137 - "There's no lake now" 22.09.2017

John and Shannon discuss this week’s Mw 7.1 Earthquake in Mexico and talk about the rheology of cats. Earthquake Mw 7.1 Event Mw 8.1 Event 1985 Mexico City Mw 8.0 Lake Texcoco Tuned Mass Damper in Action Fun Paper Friday On the Rheology of Cats," Marc-Antoine Fardin, Rheology Bulletin, vol. 83, 2, July 2014, pp. 16–17 and 30. Contact us: Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicge...

Episode 136 - “Paleozoic Hot Potato” Lynn Soreghan 15.09.2017

Lynn Soreghan Paleozoic Loess Greenhouse vs. Icehouse Snowball Earth Fun Paper Friday Is your fitness tracker lying to you? An undergraduate researcher investigated several sleep trackers and compared them to research grade quipment. Comparison article Data extraction guide Contact us: Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnr...

Episode 135 - "Massive kinetic energy" 08.09.2017

This week John and Shannon talk about hurricanes Harvey and Irma, the physics of heat engines, and determining authorship order! Hurricanes Harvey Irma Carnot engine Hurricane hunters Storm chasers (Toomey) Fun Paper Friday Thanks to Taryn for sending in this selection of fun paper author name ordering schemes! Fun ways of deciding authorship order Contact us: Show - www.dontpanicgeocast.com - SWU...

Episode 134 - "Launching balloons out of a UHaul" Eric Bruning 01.09.2017

This week Dr. Eric Bruning ( @deeplycloudy ) joins us to talk about locating lightning, the lightning process, and space based lightning instruments. Don’t miss this week’s electrifying show! Dr. Bruning’s Website VORTEX Program West Texas LMA COLMA Sprite Chasing Lightning (Tim Samaras) NOAA Lightning Safety Website Fun Paper Friday Cipra, Barry. “A prime case of chaos.” What’s Happening in the M...

Episode 133 - "Giant orbiting magnifying glass" 25.08.2017

Millions looked up to see this week’s solar eclipse. We talk about the eclipse and how it has played a role in human and scientific history. Algorithms to live by Solid angle 2017 Solar Eclipse (NASA) Shadow from GOES 16 1 hour temperature change Fun Paper Friday Thanks to listener Lukas for sending in this fun paper on martian snow! Spiga, A., Hinson, D. P., Madeleine, J.-B., Navarro, T., Millour...

Episode 132 - "Papa Bear is no longer with us" Scott Dubowsky 18.08.2017

This week Scott Dubowsky joins us to talk about plasma and ball lightning. We then dive into the economic theory of intersteller trad with another listener fun paper friday! Scott’s Webpage McCall Research Group Ball Lightning Physics of parallel plate capacitors Fun Paper Friday Thanks to listener Andrew for this week’s Fun Paper Friday! Krugman, Paul. “The theory of interstellar trade.” Economic...

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