Don't Panic Geocast

Classes are about to start, so let's grab some gear and get to work! Field Supplies (https://leemangeophysical.com/product-category/field-supplies/) Field Kits (https://leemangeophysical.com/product/field-camp-kit/) Geological Field Sketches and Illustrations: A Practical Guide (https://www.amazon.com/Geological-Field-Sketches-Illustrations-Practical/dp/0198835922/ref=asc_df_0198835922/?tag=hyprod-20&linkCode=df0&hvadid=416713164431&hvpos=&hvnetw=g&hvrand=2378661877260157780&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9026282&hvtargid=pla-863077818228&psc=1&tag=&ref=&adgrpid=93867144237&hvpone=&hvptwo=&hvadid=416713164431&hvpos=&hvnetw=g&hvrand=2378661877260157780&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9026282&hvtargid=pla-863077818228) Fun Paper Friday What do grapes and microwaves have to do with advanced physics? Find out in this week's Fun Paper! Khattak, Hamza K., Pablo Bianucci, and Aaron D. Slepkov. "Linking plasma formation in grapes to microwave resonances of aqueous dimers." Pro

This summer while Shannon has been at field camp we took a short hiatus, but we're back! Find out what happened with camp and more as well as what happens when you drop a spinning bottle of water. Fun Paper Friday Ehrenstein, David. "Controlling the Bounce of a Bottle." Physics 16 (2023): 102. (https://physics.aps.org/articles/v16/102) 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 (https://twitter.com/dontpanicgeo) show@dontpanicgeocast.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_leeman (https://twitter.com/geo_leeman) Shannon Dulin - @ShannonDulin (https://twitter.com/ShannonDulin)

This week we talk about the Messinian Salinity Crisis and if your mom was right about cracking your knuckles. Fun Paper Friday Does cracking your knuckles destory your joints, improve joint health, or neither? Find out how one man has experiented on himself to find a potential answer. Unger, Donald L. "Does knuckle cracking lead to arthritis of the fingers?." Arthritis & Rheumatism: Official Journal of the American College of Rheumatology 41.5 (1998): 949-950. (https://pubmed.ncbi.nlm.nih.gov/9588755/) 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 (https://twitter.com/dontpanicgeo) show@dontpanicgeocast.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_leeman (https://twitter.com/geo_leeman) Shannon Dulin - @ShannonDulin (https://twitter.com/ShannonDulin)

Join us as we explore how the intricate interplay between geology and military strategy has shaped history. We unravel the secrets behind the terrain's influence on battles, from its impact on troop movements to the potential for fortifications and natural defenses. Additionally, we investigate an intriguing question: What type of rock is the deadliest? We are astonished by the unexpected ways in which geology has played a pivotal role in shaping the destiny of nations in times of war. Fun Paper Friday Don't play with your food - unless it is to write a paper on fluid mechanics *Mathijssen, Arnold JTM, et al. "Culinary fluid mechanics and other currents in food science." arXiv preprint arXiv:2201.12128 (2022). (https://arxiv.org/pdf/2201.12128.pdf) 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 (https://twitter.com/dontpanicgeo) show@dontpanicgeocast.com John L

In this episode of the Don't Panic Geocast podcast, we continue our exploration of the Ice Age National Scenic Trail, immersing ourselves in its stunning landscapes and geological wonders. From glacial features to ancient river valleys, each step along the trail reveals new marvels waiting to be discovered. In the "Fun Paper Friday" segment, we dive into the intriguing world of gas marbles, unraveling their peculiar properties and potential applications. Fun Paper Friday Roux, Aymeric, Alexis Duchesne, and Michael Baudoin. "Everlasting bubbles and liquid films resisting drainage, evaporation, and nuclei-induced bursting." Physical Review Fluids 7.1 (2022): L011601. (https://hal.science/hal-03596292/document) 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 (https://twitter.com/dontpanicgeo) show@dontpanicgeocast.com John Leeman - www.johnrleeman.com (http://www.j

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 Friday Goodwin, Deborah, Pat Harris, and Nell Davidson. "Behaviour of stabled horses presented with foraging devices in mangers and buckets." (2005): 96. (https://eprints.soton.ac.uk/63518/) 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 (https://twitter.com/dontpanicgeo) show@dontpanicgeocast.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_lee

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! (https://www.patreon.com/dontpanicgeo) www.dontpanicgeocast.com (http://www.dontpanicgeocast.com) SWUNG Slack (https://softwareunderground.org) @dontpanicgeo (https://twitter.com/dontpanicgeo) show@dontpanicgeocast.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_leeman (https://twitter.com/geo_leeman) Shannon Dulin - @ShannonDulin (https://twitter.com/ShannonDulin)

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. (https://www.nature.com/articles/s41566-022-01139-z) 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 (https://twitter.com/dontpanicgeo) show@dontpanicgeocast.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_leeman (https://twitter.com/geo_leeman) Shannon Dulin - @ShannonDulin (https://twitter.com/ShannonDulin)

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 (Mount Everest). Arctic, Antarctic, and Alpine Research, 2023; 55 (1) DOI: 10.1080/15230430.2023.2164999 (https://www.tandfonline.com/doi/full/10.1080/15230430.2023.2164999) 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 (https://twitter.com/dontpanicgeo) show@dontpanicgeocast.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_leeman (https://twit

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! (https://www.patreon.com/dontpanicgeo) www.dontpanicgeocast.com (http://www.dontpanicgeocast.com) SWUNG Slack (https://softwareunderground.org) @dontpanicgeo (https://twitter.com/dontpanicgeo) show@dontpanicgeocast.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_leeman (https://twitter.com/geo_leeman) Shannon Dulin - @ShannonDulin (https://twitter.com/ShannonDulin)

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 (https://news.stanford.edu/2016/08/10/stanford-scientists-show-print-rocks-3-d/) 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 (https://twitter.com/dontpanicgeo) show@dontpanicgeocast.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_leeman (https://twitter.com/geo_leeman) Shannon Dulin - @ShannonDulin (https://twitter.com/ShannonDulin)

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. (https://microbiomejournal.biomedcentral.com/articles/10.1186/2049-2618-2-41?fbclid=IwAR32-5hSxr8HoALL6OtFHA7pr_NNxh5PnXwRVwj8_xLtai_w8OejmTmBqLk) 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 (https://twitter.com/dontpanicgeo) show@dontpanicgeocast.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_leeman (https://twitter.com/geo_leeman) Shannon Dulin - @ShannonDulin (https://twitter.co

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." Integrative organismal biology 2.1 (2020): obaa005. (https://academic.oup.com/iob/article/2/1/obaa005/5799080) 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 (https://twitter.com/dontpanicgeo) show@dontpanicgeocast.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_leeman (https://twitter.com/geo_leeman) Shannon Dulin - @ShannonDulin (https://

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 (https://www.nycgovparks.org/parks/inwood-hill-park/highlights/12313#:~:text=Fordham%20gneiss%2C%20one%20of%20the,a%20period%20of%20continental%20shifting.) Fun Paper Friday Cameras left behind by explorers over 80 years ago found and may unlock secrets of glacial movement Article (https://www.businessinsider.com/cameras-left-in-glacier-legendary-explorer-found-85-years-later-2022-10) Contact us: Show Support us on Patreon! (https://www.patreon.com/dontpanicgeo) www.dontpanicgeocast.com (http://www.dontpanicgeocast.com) SWUNG Slac

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). (https://www.bmj.com/content/379/bmj-2022-072833) 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 (https://twitter.com/dontpanicgeo) show@dontpanicgeocast.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_leeman (https://twitter.com/geo_leeman) Shannon Dulin - @ShannonDulin (https://twitter.com/ShannonDulin)

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! (https://www.patreon.com/dontpanicgeo) www.dontpanicgeocast.com (http://www.dontpanicgeocast.com) SWUNG Slack (https://softwareunderground.org) @dontpanicgeo (https://twitter.com/dontpanicgeo) show@dontpanicgeocast.com John Leeman - www.johnrleeman.com (http://www.johnrleeman.com) - @geo_leeman (https://twitter.com/geo_leeman) Shannon Dulin - @ShannonDulin (https://twitter.com/ShannonDulin)

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 (https://www.homedepot.com/p/Milwaukee-144-Position-Flex-Head-Ratcheting-Combination-Wrench-Set-SAE-and-METRIC-30-Piece-48-22-9413-48-22-9513/317521332?source=shoppingads&locale=en-US&&mtc=SHOPPING-CM-CML-GGL-D25T-025_001_HAND_TOOLS-NA-MILWAUKEE-NA-SMART-3047250-NA-NA-NA-NBR-NA-NA-NA-HandTools&cm_mmc=SHOPPING-CM-CML-GGL-D25T-025_001_HAND_TOOLS-NA-MILWAUKEE-NA-SMART-3047250-NA-NA-NA-NBR-NA-NA-NA-HandTools-71700000088116572-58700007476412636-92700071623539228&gclid=CjwKCAiAkfucBhBBEiwAFjbkr23O-B7M3m6UF9IxbpvJ96Zkt7R-SzeBq2h2z0RStfORXBKAlEDFEhoCp

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 (https://www.sciencenews.org/article/cow-cattle-pee-potty-training-bathroom-pollution-ammonia) Dirksen, Neele, et al. "Learned control of urinary reflexes in cattle to help reduce greenhouse gas emissions." Current Biology 31.17 (2021): R1033-R1034. (https://www.sciencedirect.com/science/article/pii/S0960982221009660) 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 (https://twitter.com/dontpanicgeo) show@dontpanicgeocast.com John L

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 us to be more like engineers and embrace complexity in our models. Doyle, John. "Beyond the spherical cow." Nature 411.6834 (2001): 151-152. (http://hermes.ffn.ub.es/oscar/Biologia/Escala/Nature_411_151_2001.pdf) 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 (https://twitter.com/dontpanicgeo) show@dontpanicgeocast.com John Leeman - www.johnrleeman.com (http://www.j

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 igneous rock is generally more weathering resistant so we get cool weathering features Can be rhyolitic, but mostly basaltic Rate of cooling determines grainsize (slow = big) and big near the center Can have columnar jointing Big phenocrysts orient with flow direction - cool! AMS studies show this. These are awesome when you get them radially around a volcano! Horizontal dikes are called sills Clastic dikes are formed by sediments episode 177 (https://www.dontpanicgeocast.com/177) Can be formed with fluid pressure