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PODCAST

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.

science natural sciences

All Episodes

46:42

Episode 362 - "A lot of gray area in geology"

Don"t Panic Geocast ·

2023/04/28

In this episode of the Don't Panic Geocast, we dive into the fascinating world of dolomite, a mineral that is commonly found in sedimentary rocks. They discuss the unique characteristics of dolomite and the different ways in which it is formed. We also highlight a fun paper on equine dietary preferences, which explores the food choices of horses in different environments. The paper reveals interesting insights into the feeding habits of horses and how they adapt to different conditions Fun Paper

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1:01:05

Episode 361 - "No Ice Other than in Tea" Ice Age...

Don"t Panic Geocast ·

2023/04/14

John and Shannon are embarrassed to learn about a "new" national park - the Ice Age National Scenic Trail! Ice Age Trail (https://www.nps.gov/iatr/index.htm) Fun Paper Friday How can invisible creatures make their eyes invisible? What about their blood? What's going on in the ocean? Feller, Kate, and Megan Porter. "Photonic tinkering in the open ocean." Science 379.6633 (2023): 643-644. (https://www.science.org/doi/abs/10.1126/science.adf2062) Contact us: Show Support us on Patreon

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43:14

Episode 360 - "Third and Fourth Order Nonsense"...

Don"t Panic Geocast ·

2023/04/07

This week we dive into rivers and what makes them erode, deposit, move and more using an engineering concept called Lane's balance. River Dynamics Fact Sheet (https://floodready.vermont.gov/sites/floodready/files/documents/rv_river_dynamics_101.pdf) Fun Paper Friday Lasers, high speed cameras, lightning, radio observations, and electric fields. It doesn't get better than this! Houard, Aurélien, et al. "Laser-guided lightning." Nature Photonics (2023): 1-5.

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37:24

Episode 359 - "Standing Around Staring"

Don"t Panic Geocast ·

2023/03/18

We've been off air for a bit due to a giant move! Find out more! Fun Paper Friday Have we been leaving more that footprints on Mt. Everest? What about other planets? Humans are leaving behind a 'frozen signature' of microbes on Mount Everest (https://www.sciencedaily.com/releases/2023/03/230314155103.htm) Nicholas B. Dragone, L. Baker Perry, Adam J. Solon, Anton Seimon, Tracie A. Seimon, Steven K. Schmidt. Genetic analysis of the frozen microbiome at 7900 m a.s.l., on the South Col of Sagarmatha

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57:11

Episode 358 - "Put a pin in it" Surveillance Balloons

Don"t Panic Geocast ·

2023/02/24

There's been a lot of buzz about the PRC surveillance balloon, so we unpack the history of using balloons for science and for military. Fun Paper Friday Thanks to listener Xavier for this disturbing fun paper on privacy and tech repair. Ceci, Jason, Jonah Stegman, and Hassan Khan. "No Privacy in the Electronics Repair Industry." arXiv preprint arXiv:2211.05824 (2022). (https://arxiv.org/pdf/2211.05824.pdf) Contact us: Show Support us on Patreon

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42:44

Episode 357 - "Looks like the iron throne"

Don"t Panic Geocast ·

2023/02/10

Giant crystal in caves sounds more like a plot twist than a geological phenomena, but this week we learn how the Naica Mine crystals were formed! Fun Paper Friday Head, D., and T. Vanorio. "Effects of changes in rock microstructures on permeability: 3‐D printing investigation." Geophysical Research Letters 43.14 (2016): 7494-7502. (https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2016GL069334) Standford News Article

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38:33

Episode 356 - "They'll find me laying in a graben"

Don"t Panic Geocast ·

2023/02/03

This week we talk about basin and range topography, horsts, grabens, and more! Also how similar is your mouth bacteria to someone you kissed? John McPhee Book (https://www.amazon.com/Basin-Range-John-McPhee/dp/0374516901) USGS Basin and Range Report (https://www.usgs.gov/publications/basin-and-range-province-utah-nevada-and-california) Fun Paper Friday Kort, Remco, et al. "Shaping the oral microbiota through intimate kissing." Microbiome 2.1 (2014): 1-8.

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52:54

Episode 355 - "Best First Week of Class Ever"

Don"t Panic Geocast ·

2023/01/27

This week John and Shannon discuss some mysterious rocks whose extraterrestrial origin is still debated and if growing a beard is a good defense against a punch. Arstechnica article on Hypatia Stone (https://arstechnica.com/science/2022/06/mysterious-hypatia-stone-might-hold-earliest-evidence-of-type-ia-supernova/) Fun Paper Friday Beseris, E. A., S. E. Naleway, and D. R. Carrier. "Impact protection potential of mammalian hair: Testing the pugilism hypothesis for the evolution of human facial hair."

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33:13

Episode 354 - "That's Gneiss"

Don"t Panic Geocast ·

2023/01/21

New York City is a sprawling metropolis, but the design of the city is heavily influenced by the geology of this tortured patch of rock. This week we talk about it and what rocks you'll see as you stroll the city streets. Manhattan Schist (https://www.nycgovparks.org/parks/j-hood-wright-park/highlights/12369#:~:text=Manhattan%20schist%20was%20formed%20about,a%20single%20supercontinent%2C%20called%20Pangea.) Inwood Marble (https://en.wikipedia.org/wiki/Tuckahoe_marble) Fordham Gneiss

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1:13:51

Episode 353 - "We Didn't Do So Well"

Don"t Panic Geocast ·

2023/01/13

Shannon's Resolutions Streamline Digital Workflows Read a lot! (and use goodreads) Take a sabbatical John's Resolutions Read 24 Books Cut carbs and meal prep lunch Take quarterly vacations Systemize, delegate, react Fun Paper Friday Do you have a funny walk? It could be healthy! Gaesser, Glenn A., David C. Poole, and Siddhartha S. Angadi. "Quantifying the benefits of inefficient walking: Monty Python inspired laboratory based experimental study." bmj 379 (2022).

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51:01

Episode 352 - "Why are things so heavy in the future?"

Don"t Panic Geocast ·

2022/12/23

Shannon went to a workshop on determining the provenance of sediments using heavy elements, optical microscopes, and Raman spectra! Raman Spectroscopy (https://en.wikipedia.org/wiki/Raman_spectroscopy) Fun Paper Friday Do dogs lie when they mark? McGuire, B., et al. "Urine marking in male domestic dogs: honest or dishonest?." Journal of Zoology 306.3 (2018): 163-170. (https://zslpublications.onlinelibrary.wiley.com/doi/abs/10.1111/jzo.12603) Contact us: Show Support us on Patreon

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1:12:41

Episode 351 - "Our Favorite Things"

Don"t Panic Geocast ·

2022/12/16

2022 flew past, so this week John and Shannon review their favorite things, experiences, classes, and more of 2022. Everything from bee keeping to kitchen appliances to multimeters to books! John's Favorite Things 2022 Hantek 2D72 (https://amzn.to/3hAVsSB) GEARS Workshop (https://leemangeophysical.com/gears-2022-workshop/) Collapsing Wagon (https://amzn.to/3YyBUyJ) Milwaukee Packouts (https://www.milwaukeetool.com/Products/Storage-Solutions/PACKOUT) and Ratchet Wrenches

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47:41

Episode 350 - "Borehole to Hell"

Don"t Panic Geocast ·

2022/12/02

How deep have we actually drilled into the Earth? Turns out, not very far, just 12,262 metres (40,230 ft) or about 0.3% of the way to the center of the Earth. We talk about the challenges of this feat and about potty training cows. Kola Superdeep Borehole (https://en.wikipedia.org/wiki/Kola_Superdeep_Borehole) Fun Paper Friday Cows are a source of many environmental concerns, but what if we could potty train them? Science News Article

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56:48

Episode 349 - "That Sounds Heavy" Tech Replacement

Don"t Panic Geocast ·

2022/11/18

It's hard to decide when it is finally time to let go. When do you recycle that old tech and replace it? It may still work, but is it the thing holding you back, or do you just want something new and don't really need it? This week Shannon and John grappled with this exact question and talked each other into and out of some potential technology purchases Fun Paper Friday Everyone knows that physics can solve any problem if you simplify it enough, but biologists are fed up! This week John Doyle tells

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42:31

Episode 348 - "Hot Juicy Magma"

Don"t Panic Geocast ·

2022/11/06

Forms in fractures of rocks already in place, so it an INTRUSIVE feature Form at right angles to the direction of extension in the area - nature’s frac jobs Can be super thin or super thick, but generally are self-consistent Can have multiple periods of injection or even multiple compositions of injection over time Can get en echelon patterns, rings, and cones (last two common with caldera volcanism) Magmatic are the most well known and form when magma flows into a crack and cools into a sheet. The

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40:57

Episode 347 - "Tiny Crusty Rocks"

Don"t Panic Geocast ·

2022/11/05

It's all about meteorites, space rocks made from proto planets, metals, and more! Fun Paper Friday Ness, E., & Bihm, E. (2018). Short-Term Cognitive Therapy for Authors of Rejected Manuscripts. Journal of Polymorphous Perversity (http://www.psychhumor.com/2018/12/08/286/) Contact us: Show Support us on Patreon! (https://www.patreon.com/dontpanicgeo) www.dontpanicgeocast.com (http://www.dontpanicgeocast.com) SWUNG Slack (https://softwareunderground.org) @dontpanicgeo

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49:02

Episode 346 - "They Haven't Broke"

Don"t Panic Geocast ·

2022/10/22

This week we recap Shannon's travel to GSA and John's travel to Europe before diving into what shaped knobs are best for different applications in an award winning Fun Paper Friday! Fun Paper Friday “How to Use Fingers during Rotary Control of Columnar Knobs,” Gen Matsuzaki, Kazuo Ohuchi, Masaru Uehara, Yoshiyuki Ueno, and Goro Imura, Bulletin of Japanese Society for the Science of Design, vol. 45, no. 5, 1999, pp. 69-76. (https://www.asahi.com/ajw/articles/14720414) Contact us: Show Support us on

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34:58

Episode 345 - "3rd Hoodoo on the Left"

Don"t Panic Geocast ·

2022/10/08

This week its all about the badlands and how they got to be so bad! Fun Paper Friday DECEPTIVELY CHONKY LIZARD BREAKS AN UNFORTUNATE, STRANGE RECORD (https://www.smithsonianmag.com/smart-news/super-constipated-florida-lizard-breaks-records-gargantuan-poop-180974813/) Contact us: Show Support us on Patreon! (https://www.patreon.com/dontpanicgeo) www.dontpanicgeocast.com (http://www.dontpanicgeocast.com) SWUNG Slack (https://softwareunderground.org) @dontpanicgeo

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1:06:50

Episode 344 - "Pre-Cognated"

Don"t Panic Geocast ·

2022/10/01

Learning new things is hard - and we're talking about how we are trying to do it! Fun Paper Friday How is sleep tied to creativity? Weinberger, Eva, et al. "Having a creative day: Understanding entrepreneurs' daily idea generation through a recovery lens." Journal of Business Venturing 33.1 (2018): 1-19. (https://www.sciencedirect.com/science/article/pii/S0883902616301641) Contact us: Show Support us on Patreon! (https://www.patreon.com/dontpanicgeo) www.dontpanicgeocast.com

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53:07

Episode 343 - "Div, Grad, and Curl"

Don"t Panic Geocast ·

2022/09/23

Vector calculus is everywhere, but sadly good explanations are not. This week we talk about the div, grad, and curl operations. Div, Grad, Curl, and All That: An Informal Text on Vector Calculus (https://amzn.to/3fky5Lq) Fun Paper Friday Yanai, Itai, and Martin Lercher. "The two languages of science." Genome Biology 21.1 (2020): 1-9. (https://scholar.google.com/scholar?output=instlink&q=info:igPWCvk25sgJ:scholar.google.com/&hl=en&as_sdt=0,5&scillfp=7481915880690560990&oi=lle) Contact

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