Don't Panic Geocast

It's not an exact science.

About the show

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 284 - "Dijon or Yellow" Geomajik Box

    March 19th, 2021  |  58 mins 13 secs

    What should we put in a box to help someone learn geophysics or hack to create new instruments? This week we try to figure it out!

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    Episode 283 - "There are spectrograms"

    March 7th, 2021  |  48 mins 30 secs

    This week we talk about flow regimes in streams, more bedforms, and then wrap it up with a discussion of what crocodiles sound like after breathing helium!

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    Episode 282 - "Antidunes"

    March 1st, 2021  |  51 mins 51 secs

    This week we talk all about sediment bedforms and everyone's favorite - antidunes! Froude Number Fun Paper Friday Contact us: Show John Leeman Shannon Dulin

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    Episode 281 - "Bill's over there chewing on his buddy" The Cambrian Explosion

    February 28th, 2021  |  48 mins 25 secs

    When and why did life diversify? This week we go WAY BACK to the Cambrian and hang out with hungry worms and trilobites to discover what happened. Fun Paper Friday Did you know that Wombats poop cubes? Now you do! Contact us: Show ...

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    Episode 280 - "Red sky in the morning" Weather Proverbs

    February 12th, 2021  |  54 mins 12 secs

    This week we look at the origins and science behind common weather proverbs, discuss the weather forecast rock found in every southern craft fair, and then play some video games! Fun Paper Friday Can playing video games teach us about volcanoes?...

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    Episode 279 - "They forgot how to walk" Teaching Field in a Ballroom

    January 31st, 2021  |  54 mins 23 secs

    Shannon is teaching intro to field inside a ballroom and we grapple with what field skills students need in the real world. Fun Paper Friday Cats go wild over catnip - but why? Contact us: Show John Leeman ...

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    Episode 278 - "Millimillidarcy" Permeability

    January 25th, 2021  |  57 mins 51 secs

    This week it's all about permeability - how water flows through rocks! Fun Paper Friday Contact us: Show John Leeman Shannon Dulin

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    Episode 277 - "Water holding the rock" Porosity

    January 11th, 2021  |  52 mins 51 secs

    This week we talk about porosity - or what all of the empty space in a rock is and why it is important. Primary Porosity Secondary Porosity Fracture Porosity Vuggy Porosity Effective/Open Porosity Ineffective/Closed Porosity Dual Porosity...

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    Episode 276 - Goodbye 2020

    January 1st, 2021  |  1 hr 23 mins

    This week we show 2020 out the door with our 2021 resolutions and yearly planning show! John be more decisive and reactive but in a good way less reflection on made decisions more forward focus work on something and focus get out of team task...

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    Episode 275 - "Should we just start with maniacal laughter?"

    December 25th, 2020  |  16 mins 46 secs

    This week we update you on the 2020 status and that we'll be back in 2021! Fun Paper Friday We start our first ever two part fun paper! Contact us: Show John Leeman Shannon Dulin

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    Episode 274 - "Haboobs"

    December 4th, 2020  |  31 mins 20 secs

    This week we talk about dust storms or haboobs and why they occur. Fun Paper Friday What's a monotreme? We take a biology 101 refresher and discover that the platypus was glow in the dark with this week's fun paper! Contact us: Show ...

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    Episode 273 - "Very special ways to pick people up" Capt. Jeff Grass

    November 28th, 2020  |  56 mins 43 secs

    This week Capt. Jeff Grass talks to us about being prepared for natural disasters! Fun Paper Friday Can a can of Coke make solar cells more efficient? Contact us: Show John Leeman Shannon Dulin

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    Episode 272 - "Adiabatic Bog"

    November 6th, 2020  |  52 mins

    This week we talk about how conferences have adapted to covid, why John is building hands on learning tools, and about nutrient exchange in bogs for meat eating plants! Fun Paper Friday Carnivorous plants just eat flies right? Think again! Contact...

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    Episode 271 - "Guess Again Dummy" Ryan May

    October 30th, 2020  |  1 hr 32 mins

    This week Dr. Ryan May joins us to talk about life as a scientific software developer and his career path from radars to radiosondes and more! Fun Paper Friday Vampires - a classic predator prey problem? Contact us: Show ...

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    Episode 270 - "Why God made the evening shift" Steve Piltz

    October 25th, 2020  |  1 hr 11 mins

    This week National Weather Service Tulsa WFO Meteorologist In Charge Steve Piltz joins us to talk about a career in the weather service and finding unique ways to solve forecast problems! Fun Paper Friday Do ants count their steps to get home? ...

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    Episode 269 - "I thought about something totally different" Playas

    October 16th, 2020  |  44 mins 5 secs

    This week John and Shannon agree to talk about playas, only to discover that they think about very different things. Fun Paper Friday Man eating deer? Looks like it! Contact us: Show John Leeman Shannon Dulin