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Don't Panic GeocastEpisode 418 - "I like the crystal habit"What makes a mineral a favorite? In this fun and down-to-earth episode, John and Shannon swap stories about the minerals they love most — and why. Along the way, they unpack cool crystal habits, formation environments, fieldwork memories, and the aesthetic appeal of minerals from museum specimens to muddy boots.
Shannon shares her appreciation for:
Hematite – With its metallic luster and planetary significance.
Goethite – A subtle but important iron oxide-hydroxide.
Smithsonite – Beautiful colors and a fascinating history in ore geology.
John counters with:
Ulexite – “TV rock,” with fiber-optic properties that never fail to wow.
2025-08-0150 minDon't Panic GeocastEpisode 417 - "Who are you?"We're back from summer break - Shannon taught field camp, John travelled for work and got hailed on, and more!
John’s Hail Storm
Fun Paper Friday
How does modern AI stack up against a cognition test designed for humans?
Dayan, Roy, Benjamin Uliel, and Gal Koplewitz. "Age against the machine—susceptibility of large language models to cognitive impairment: cross sectional analysis." bmj 387 (2024).
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2025-07-111h 04Don't Panic GeocastEpisode 414 - "Closed Because of Landslide"Shannon's class took a trip to study catestrophic sedimentation... and they found it! John switched back to a Mac after 5 years. Join us for these and other exciting updates!
Fun Paper Friday
Find out how alcohol and an eye puffer machine cominbed with magnets can teach us about where our motor skills reside in the brain.
Johansson, Fredrik, et al. "Alcohol impairs learning and timing of conditioned eyeblink responses." Brain Research 1854 (2025): 149545.
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2025-04-181h 05Don't Panic GeocastEpisode 400 - "Mushroom Cloud of Salt"Throughout human history, certain minerals have held immense power, shaping economies, societies, and entire civilizations. In this economic rocks series, John and Shannon discuss how essential minerals like salt, gold, and coal influenced historical events and continue to impact modern geopolitics. This week we start with salt and how it is essential to many aspects of our day to day.
Learn More
History of Salt in Ancient Civilizations - Learn how salt became an essential part of trade, diet, and religion in ancient China, Egypt, and Rome:contentReference[oaicite:0]{index=0}.
The Role of Salt in the Ro...
2024-11-0136 minDon't Panic GeocastEpisode 396 - "Please Don't Call the FBI" GEARS 2024This week John and Shannon summarize the GEARS 2024 workshop, lessons learned, and talk about a record air pressure that was just a fluke.
Fun Paper Friday
Bureau of Meteorology says quality checks reveal air pressure record not broken, miscalculations published online
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2024-09-0653 minDon't Panic GeocastEpisode 389 - "FieldVolt"Stop losing power and data in the field. John and Shannon discuss the new FieldVolt open power standard.
FieldVolt Standard
Fun Paper Friday
Dean, Isabelle, and Michael T. Siva-Jothy. "Human fine body hair enhances ectoparasite detection." Biology letters 8.3 (2012): 358-361.
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2024-05-1852 minDon't Panic GeocastEpisode 388 - "Screaming Eagle"This week John and Shannon talk about what some of the weird weather radar terms that get thrown around mean and how you can use them to keep up with storms impacting you. Then things get morbid with a mouse experiment that ended in an idiocrasy style extinction.
Fun Paper Friday
Calhoun, John B. "Death squared: the explosive growth and demise of a mouse population." (1973): 80-88.
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2024-05-031h 09Don't Panic GeocastEpisode 387 - "Adorable Baby Drilling Rig"John went to the Geoprobe open house to look at drilling rigs and then we discuss the optimum way to plan a large number of Christmas parties.
Earth Day Google Doodle
Geoprobe
Fun Paper Friday
Grüneberg, Reuben. "Hospital Christmas parties." British Medical Journal 281.6256 (1980): 1667.
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2024-04-2646 minDon't Panic GeocastEpisode 385 - "Father Sky Goes Away"John and Shannon both traveled to see the great eclipse of 2024 and share their experiences this week as well as talk about one of those rare times when ice is not a mineral.
Fun Paper Friday
We always talk about ice being a mineral, but what about when it isn't?
Rosu-Finsen, Alexander, et al. "Medium-density amorphous ice." Science 379.6631 (2023): 474-478.
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2024-04-1251 minDon't Panic GeocastEpisode 376 - "Got to get those pizza ovens hot"This week we tackle the controversial topic of fracking. Learn about how it works and what it does to help get oil and gas out of the ground and into your home.
Fun Paper Friday
Seo, Ki‐Weon, et al. "Drift of Earth's pole confirms groundwater depletion as a significant contributor to global sea level rise 1993–2010." Geophysical Research Letters 50.12 (2023): e2023GL103509.
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2024-02-0354 minDon't Panic GeocastEpisode 375 - "Squeeze it shut"This week we keep talking about wells. It's all about casing, cementing, bottom hole assemblies, and wet underwear.
Fun Paper Friday
Bakkevig, Martha Kold, and Ruth Nielsen. "Impact of wet underwear on thermoregulatory responses and thermal comfort in the cold." Ergonomics 37.8 (1994): 1375-1389.
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2024-01-2654 minDon't Panic GeocastEpisode 374 - "Until you Lick It"How do you drill a hole in the ground? Turns out that drilling wells is more complicated than you might think!
Fun Paper Friday
“Eating Fossils,” Jan Zalasiewicz, The Paleontological Association Newsletter, no. 96, November 2017.
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2024-01-201h 05Don't Panic GeocastEpisode 373 - "Tastes like Animal Crackers"This show got stuck in processing before sabbatical and did not automatically release, but here it is!
This week we range over several topics on our minds while testing out english biscuits per a fun paper a few weeks ago. Also - do cats understand you but just don't care?
Fun Paper Friday
Do cats understand you, but just not care?
Saito, Atsuko, et al. "Domestic cats (Felis catus) discriminate their names from other words." Scientific Reports 9.1 (2019): 5394.
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2024-01-121h 02Don't Panic GeocastEpisode 372 - "The Rumors of My Death" 2024 ResolutionsWe're back for the 2024 season after our first ever sabbatical and we're ready to talk science, resolutions, and barbie.
Fun Paper Friday
Klamer, Katherine. "Analysis of Barbie medical and science career dolls: descriptive quantitative study." bmj 383 (2023).
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2024-01-051h 13Don't Panic GeocastEpisode 371 - "Have you tried licking it?"This week we talk about mudrock - which sounds pretty self explanatory, but of course geologists have made a complex classification scheme around it. Also we delve into if you should "sleep on it" when making big decisions.
Fun Paper Friday
Should you sleep on it when making an important decision?
Dijksterhuis, Ap, et al. "On making the right choice: The deliberation-without-attention effect." Science 311.5763 (2006): 1005-1007.
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2023-09-1539 minDon't Panic GeocastEpisode 370 - "Siliceous Ooze"We said if you just pick up a rock, it is probably chert. How does this pervasive rock form? I mean we should have a good idea, right?
Fun Paper Friday
Time for tea and biscuits... and science.
Jones, Ceri, and John Francis. "Direct Uptake of Nutrition and Caffeine Study (DUNCS): biscuit based comparative study." bmj 379 (2022).
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2023-09-0848 minDon't Panic GeocastEpisode 369 - "Collect data in the field, do science at home"It takes a lot to plan field work, no matter if it is a day rock hounding or a week in the deep field. This week we talk about what you need to know!
Fun Paper Friday
You Can Just Put Up a Poster at IMCL and Nobody Will Stop You
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2023-08-2554 minDon't Panic GeocastEpisode 368 - "It is Chert"You walk outside and find a rock - what is it? Well, that's probably a difficult answer. Also, how round are electrons and how do you even measure that?
Fun Paper Friday
Science News Article
Roussy, Tanya S., et al. "An improved bound on the electron’s electric dipole moment." Science 381.6653 (2023): 46-50.
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2023-08-1852 minDon't Panic GeocastEpisode 367 - "Summer Break"Classes are about to start, so let's grab some gear and get to work!
Field Supplies
Field Kits
Geological Field Sketches and Illustrations: A Practical Guide
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." Proceedings of the National Academy of Sciences 116.10 (2019): 4000-4005.
Video of Grapes in Action
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2023-08-0554 minDon't Panic GeocastEpisode 366 - "I Didn't Blow Away"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.
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2023-06-2352 minDon't Panic GeocastEpisode 365 - Salinity Crisis "Smoking Various Meats and WWII"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.
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2023-06-0939 minDon't Panic GeocastEpisode 364 - Geology of War "I'm glad I listen to this podcast"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...
2023-05-1355 minDon't Panic GeocastEpisode 363 - "National Natural Landmark"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.
2023-05-0552 minDon't Panic GeocastEpisode 362 - "A lot of gray area in geology"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...
2023-04-2846 minDon't Panic GeocastEpisode 361 - "No Ice Other than in Tea" Ice Age Trail Part 1John and Shannon are embarrassed to learn about a "new" national park - the Ice Age National Scenic Trail!
Ice Age Trail
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.
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2023-04-141h 01Don't Panic GeocastEpisode 360 - "Third and Fourth Order Nonsense" Lane's BalanceThis 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
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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2023-04-0743 minDon't Panic GeocastEpisode 359 - "Standing Around Staring"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
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
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2023-03-1837 minDon't Panic GeocastEpisode 358 - "Put a pin in it" Surveillance BalloonsThere'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).
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2023-02-2457 minDon't Panic GeocastEpisode 357 - "Looks like the iron throne"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.
Standford News Article
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2023-02-1042 minDon't Panic GeocastEpisode 356 - "They'll find me laying in a graben"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
USGS Basin and Range Report
Fun Paper Friday
Kort, Remco, et al. "Shaping the oral microbiota through intimate kissing." Microbiome 2.1 (2014): 1-8.
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2023-02-0438 minDon't Panic GeocastEpisode 355 - "Best First Week of Class Ever"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
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.
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2023-01-2752 minDon't Panic GeocastEpisode 354 - "That's Gneiss"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
Inwood Marble
Fordham Gneiss
Fun Paper Friday
Cameras left behind by explorers over 80 years ago found and may unlock secrets of glacial movement
Article
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2023-01-2133 minDon't Panic GeocastEpisode 353 - "We Didn't Do So Well"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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2023-01-131h 13Don't Panic GeocastEpisode 352 - "Why are things so heavy in the future?"Shannon went to a workshop on determining the provenance of sediments using heavy elements, optical microscopes, and Raman spectra!
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.
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2022-12-2351 minDon't Panic GeocastEpisode 350 - "Borehole to Hell"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
Fun Paper Friday
Cows are a source of many environmental concerns, but what if we could potty train them?
Science News Article
Dirksen, Neele, et al. "Learned control of urinary reflexes in cattle to help reduce greenhouse gas emissions." Current Biology 31.17 (2021): R1033-R1034.
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2022-12-0247 minDon't Panic GeocastEpisode 349 - "That Sounds Heavy" Tech ReplacementIt'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...
2022-11-1856 minDon't Panic GeocastEpisode 348 - "Hot Juicy Magma"
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 we...
2022-11-0642 minDon't Panic GeocastEpisode 347 - "Tiny Crusty Rocks"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
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2022-11-0540 minDon't Panic GeocastEpisode 346 - "They Haven't Broke"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.
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2022-10-2249 minDon't Panic GeocastEpisode 345 - "3rd Hoodoo on the Left"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
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2022-10-0834 minDon't Panic GeocastEpisode 344 - "Pre-Cognated"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.
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2022-10-011h 06Don't Panic GeocastEpisode 343 - "Div, Grad, and Curl"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
Fun Paper Friday
Yanai, Itai, and Martin Lercher. "The two languages of science." Genome Biology 21.1 (2020): 1-9.
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2022-09-2353 minDon't Panic GeocastEpisode 342 - "Kiss Me"How do we remember all of the sequences, facts, and processes in our fields? Mnemonic devices! This week we chat about a few of our favorites.
Fun Paper Friday
Is having a hypothesis a bad thing?
Yanai, Itai, and Martin Lercher. "A hypothesis is a liability." Genome Biology 21.1 (2020): 1-5.
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2022-09-1051 minDon't Panic GeocastEpisode 340 - "Coriolis Thing"The Coriolis force is a ficticious force that makes winds flow parallel to isobars in the atmosphere - this week we talk about it and how it fights the pressure gradient force to make the geostrophic balance work!
Fun Paper Friday
Can counting crows count to zero?
Kirschhock, Maximilian E., Helen M. Ditz, and Andreas Nieder. "Behavioral and neuronal representation of numerosity zero in the crow." Journal of Neuroscience 41.22 (2021): 4889-4896.
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2022-08-271h 03Don't Panic GeocastEpisode 339 - "Museum with a crater out back"This week we talk about meteor crater.
Meteor Crater
Kring, David A. "Air blast produced by the Meteor Crater impact event and a reconstruction of the affected environment." Meteoritics & Planetary Science 32.4 (1997): 517-530.
Fun Paper Friday
Can the pill color change the outcome?
De Craen, Anton JM, et al. "Effect of colour of drugs: systematic review of perceived effect of drugs and of their effectiveness." Bmj 313.7072 (1996): 1624-1626.
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2022-08-2044 minDon't Panic GeocastEpisode 338 - "GEARS 2022"John's company ran the second iteration of the GEARS workshop (read about 2021 here). After learning some hard lessons last year, this year's workshop was much different and hopefully even better!
Fun Paper Friday
Thanks to listener Darryl for this fun... poster Friday? We'll wrap up the episode talking about wraps!
Tastee Tape Poster
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2022-08-121h 01Don't Panic GeocastEpisode 336 - "Chopstick Breaking Sound"This week we talk about sounds from the Aurora and strange atmospheric conditions that create it.
Sound producing mechanism in the temperature inversion layer and its sensitivity to geomagnetic activity
Fun Paper Friday
What can we do to fight a fierce predator? The cat!
Cecchetti, Martina, et al. "Provision of high meat content food and object play reduce predation of wild animals by domestic cats Felis catus." Current biology 31.5 (2021): 1107-1111.
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2022-07-1541 minDon't Panic GeocastEpisode 335 - "Fish with a Ray Gun"
Listen to singing ice!
Fun Paper Friday
Science makes you feel stupid and that's okay!
Schwartz, Martin A. "The importance of stupidity in scientific research." Journal of Cell Science 121.11 (2008): 1771-1771.
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2022-07-0126 minDon't Panic GeocastEpisode 334 - "Rock Concert"This week we're talking about ringing rocks and why we think they sound just like cast iron bells.
Video of Ringing Rocks in PA
Fun Paper Friday
Krioukov, Dmitri. "The Proof of Innocence." arXiv preprint arXiv:1204.0162 (2012).
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2022-06-2530 minDon't Panic GeocastEpisode 333 - "Sandphony"How can some wind and sand make booming, singing, and wailing sounds? Find out what we know this week and then dive into geo-economics with a short and graphical fun paper!
Example of singing sand
Fun Paper Friday
Smith, Gregor W. "Japan's Phillips curve looks like Japan." Journal of Money, Credit and Banking 40.6 (2008): 1325-1326.
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2022-06-1125 minDon't Panic GeocastEpisode 332 - "Caliche"If you're new in the field, caliche might fool you the first few times you encounter it. This week we talk about what it is, how it forms, and why you should always carry your hammer and chisel!
Fun Paper Friday
Knuth, Donald E. "The toilet paper problem." The American Mathematical Monthly 91.8 (1984): 465-470.
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2022-06-0426 minDon't Panic GeocastEpisode 330 - "Blamo"This week we talk about fracture of toughness of materials or how resistant they are to cracking.
Fun Paper Friday
Morrill, Kathleen, et al. "Ancestry-inclusive dog genomics challenges popular breed stereotypes." Science 376.6592 (2022): eabk0639.
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2022-05-141h 05Don't Panic GeocastEpisode 329 - "Granite Annulus"Hardness, toughness, and brittleness are all unique, but related quantities. In this week's show we explore how they each relate to the atomic structure of the rocks and what they mean for us as geologists.
Fun Paper Friday
Can the ways flamingos pick a mate help us discover new drugs?
Sánchez-Rodríguez, Aminael, et al. "From flamingo dance to (desirable) drug discovery: a nature-inspired approach." Drug discovery today 22.10 (2017): 1489-1502.
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2022-05-071h 03Don't Panic GeocastEpisode 328 - "Bouma"
Bouma Sequence
Lowe Sequence
Fun Paper Friday
Nikolić, Hrvoje. "Would Bohr be born if Bohm were born before Born?." American Journal of Physics 76.2 (2008): 143-146.
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2022-04-2356 minDon't Panic GeocastEpisode 327 - "Delta Tesseract"What happens when rivers meet oceans? All kinds of fun sedimentary processes that build deltas. Learn more this week along with a discussion of one man's favorite boulders.
Fun Paper Friday
Beaty, Chester B. "Great big boulders I have known." Geology 17.4 (1989): 349-352.
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2022-04-1550 minDon't Panic GeocastEpisode 326 - "The Pinky Raise"This week it's all about conglomerates. How do these sedimentary trash cans form and how can we classify them?
Fun Paper Friday
Turns out it may be difficult to estimate parasite population in poop, but that didn't stop this team!
Krauth, Stefanie J., et al. "An in-depth analysis of a piece of s*@t: distribution of Schistosoma mansoni and hookworm eggs in human stool." PLoS neglected tropical diseases 6.12 (2012): e1969.
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2022-04-0946 minDon't Panic GeocastEpisode 325 - "It turns to mud"Last week Shannon was out in the field taking samples in the area of the Colorado River. This week we find out what she was doing and the history of that region.
Fun Paper Friday
We have policies on making your data available to journal readers, but are they effective?
Stodden, Victoria, Jennifer Seiler, and Zhaokun Ma. "An empirical analysis of journal policy effectiveness for computational reproducibility." Proceedings of the National Academy of Sciences 115.11 (2018): 2584-2589.
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2022-04-0155 minDon't Panic GeocastEpisode 324 - "Nanoknots"This week it's all about hot spots and Hawaii!
Loihi
Emperor Seamount Chain
HUGO
Fun Paper Friday
Does removing something take more brain power than adding something?
Adams, Gabrielle S., et al. "People systematically overlook subtractive changes." Nature 592.7853 (2021): 258-261.
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2022-03-2643 minDon't Panic GeocastEpisode 323 - "Bug light for nerds"What would we be doing in an alternate universe? We explore careers we almost took and how they relate to things we talk about all the time.
Fun Paper Friday
Electron Band Structure In Germanium, My Ass
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2022-03-1948 minDon't Panic GeocastEpisode 322 - "TeX Makes it Beautiful"LaTeX is a beautiful way to make documents, especially when they have lots of equations, tables, and more. This week we dive into how you too can talk TeX.
Download MikTeX
Fun Paper Friday
Matsui, Takafumi, et al. "The manufacture and origin of the Tutankhamen meteoritic iron dagger." Meteoritics & Planetary Science (2022).
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2022-03-1159 minDon't Panic GeocastEpisode 321 - "Big Peas"John and Shannon are tired of the wintery mix weather they've been getting, but at least now we understand what makes it! We also introduce the term "heated fellowship" and talk about if packs of wolves should be introduced to reduce road kill incidents.
Fun Paper Friday
Are wolves the solution to a deer problem?
Raynor, Jennifer L., Corbett A. Grainger, and Dominic P. Parker. "Wolves make roadways safer, generating large economic returns to predator conservation." Proceedings of the National Academy of Sciences 118.22 (2021).
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2022-03-0545 minDon't Panic GeocastEpisode 320 - "Hunga Tonga"The Hunga Tonga eruption is one of the largest eruptions observed with modern equipment. This week we'll dig into what happened, how it was observed, and what we think is next for the island chain.
Fun Paper Friday
In line with the show (for once!) we look at shock waves on Mars... or lack thereof.
Fernando, Benjamin, et al. "Questions to Heaven." Astronomy & Geophysics 62.LA-UR-21-31668 (2021).
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2022-02-1843 minDon't Panic GeocastEpisode 319 - "Ions in Solution"This week it's all about chemistry, not something we say often! We chat chemical weathering and exactly what all those ions mean.
Fun Paper Friday
Leibring, Katharina. "Names of companion animals: Rovers in the onomasticon?." 25th International Congress of Onomastic Sciences, Glasgow 25-29 Aug, 2014. Vol. 5. University of Glasgow, 2016.
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2022-02-1245 minDon't Panic GeocastEpisode 318 - "Sandstones are Forever"Weathering is what breaks the Earth down so it can be recycled, this week we dive into the mechanical methods of weathering the surface.
Fun Paper Friday
What feedbacks can penguin poo have on glaciers?
Wang, Peiyan, et al. "Combined effects of glacial retreat and penguin activity on soil greenhouse gas fluxes on South Georgia, sub-Antarctica." Science of The Total Environment 718 (2020): 135255.
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2022-02-0551 minDon't Panic GeocastEpisode 317 - "Is your tinfoil hat the same as mine?"There are lots of rumored precursors to earthquakes - everything from dogs acting strange to flashes of light in the sky. This week we take a look at a few of these and discuss how possible or impossible they may be.
Flashbulb Memory Effect
Earthquake Lights
Animal Behavior
Temperature Changes
Gas Emissions
Electromagnetic Changes
Fun Paper Friday
What is hip? When will it be hip again? Will Shannon and John stop saying hip?
Golman, Russell, Aditi Jain, and Sonica Saraf. "Hipsters and the Cool: A Game Theoretic Analysis of Social Identity, Trends and Fads." arXiv preprint...
2022-01-2958 minDon't Panic GeocastEpisode 316 - "A centimeter is good enough"This week we dive into differential GPS and WAAS - how we can tell exactly where we are on the planet.
WAAS
Differential GPS
Sparkfun Facet
Fun Paper Friday
What can we learn from a glowing jellyfish brain? Turns out, quite a bit!
Phys.org article
Weissbourd, Brandon, et al. "A genetically tractable jellyfish model for systems and evolutionary neuroscience." Cell 184.24 (2021): 5854-5868.
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2022-01-1552 minDon't Panic GeocastEpisode 315 - "Tombstones"Glaciers are huge, weird, and complex systems. This week we talk about some weird glacial terminology and we jump the frog with this fun paper.
Moulin
Serac
Weertman Tombstone
Jökulhlaup
Fun Paper Friday
Astley, Henry C., et al. "Chasing maximal performance: a cautionary tale from the celebrated jumping frogs of Calaveras County." Journal of Experimental Biology 216.21 (2013): 3947-3953.
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2022-01-0750 minDon't Panic GeocastEpisode 314 - "We Did Pretty Good"How did you do on your 2021 resolutions? What are you going to do in 2022?
John
More smaller, allowed breaks
Focus and completion of tasks
Hit the Gym
Get an IFR rating
Be less reactive when appropriate
Shannon
say NO even more! Make a priority of staying within my boundaries (70/15/15)
publish the rest of my dissertation (2 articles)
make my webpage(s) and keep them updated
Fun Paper Friday
Marlow, Robin, and Dora Wood. "Ghost in the machine or monkey with a typewriter—generating titles for Christmas research articles in The BMJ using artificial in...
2022-01-011h 06Don't Panic GeocastEpisode 313 - "Starts with Dyson"
Dyson Sphere
Space Mirrors
Nuke Mars
Fun Paper Friday
Did you get your beauty sleep? If not, others can probably tell!
Axelsson, John, et al. "Beauty sleep: experimental study on the perceived health and attractiveness of sleep deprived people." Bmj 341 (2010).
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2021-12-2447 minDon't Panic GeocastEpisode 312 - "Atmospheric Deodorant"This week John and Shannon talk about ways we could use engineering to save or destroy the planet.
Stratospheric Injection
Ocean Fertilization
Increased Weathering
Fun Paper Friday
When it comes to doing dumb things - are men more likley to participate than women?
Lendrem, Ben Alexander Daniel, et al. "The Darwin Awards: sex differences in idiotic behaviour." Bmj 349 (2014).
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2021-12-1048 minDon't Panic GeocastEpisode 311 - "You know the answer once you know the answer"This week learn how to make strat columns based on the magnetic direction of rocks! It's time to learn about magnetostratigraphy.
Magnetostratigraphy
Fun Paper Friday
How did the human hand evolve? These authors make no bones about it.
Press Release
Williams-Hatala, Erin Marie, et al. "The manual pressures of stone tool behaviors and their implications for the evolution of the human hand." Journal of Human Evolution 119 (2018): 14-26.
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2021-12-0445 minDon't Panic GeocastEpisode 310 - "Paul Bunyan's Potty"Canyonlands National Park is a beautiful and large display of sedimentary processes, impacts, and more. Learn about the features of this park and how they got there in this week's show!
ASU Virtual Field Trip
Paul Bunyan's Potty
Fun Paper Friday
What if your dog could call you? Would they? Once scientist dared to ask the question.
Hirskyj-Douglas, Ilyena, Roosa Piitulainen, and Andrés Lucero. "Forming the Dog Internet: Prototyping a Dog-to-Human Video Call Device." Proceedings of the ACM on Human-Computer Interaction 5.ISS (2021): 1-20.
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2021-11-2751 minDon't Panic GeocastEpisode 309 - "Assume a Spherical Chicken"A recent publication tried to determine if strange folded glasses found in the Atacama Desert formed by an extraterrestrial process. Turns out, mineraology and microscopy hold the key!
Schultz, Peter H., et al. "Widespread glasses generated by cometary fireballs during the late Pleistocene in the Atacama Desert, Chile." Geology (2021).
Fun Paper Friday
Can chicken de-feathering be used as a wind speed proxy? Some old experiments might shed some light on the subject.
Vonnegut, Bernard. "Chicken Plucking as Measure of Tornado Wind Speed." Weatherwise 28.5 (1975): 217-217.
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2021-11-2050 minDon't Panic GeocastEpisode 308 - "Clay is kind of a trash can" CementsThis week John and Shannon discuss sedimentary rocks and what holds them together. Cements can be made of many different materials and don't change the name of the rock!
Fun Paper Friday
What can we learn from ducks drafting while swimming?
Yuan, Zhi-Ming, et al. "Wave-riding and wave-passing by ducklings in formation swimming." Journal of Fluid Mechanics 928 (2021).
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2021-11-1244 minDon't Panic GeocastEpisode 307 - "Up, Up, and Away"Weather balloons are one of the few ways to really get in-situ atmospheric measurements. John was over in Norman, OK working on a new balloon borne instrument. We talk about what all is involved in a launch!
Launch Video
Fun Papery Friday
What do shark intestines have to do with the inventor of the AC motor? Find out!
Leigh, Samantha C., et al. "Shark spiral intestines may operate as Tesla valves." Proceedings of the Royal Society B 288.1955 (2021): 20211359.
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2021-11-0537 minDon't Panic GeocastEpisode 306 - "8 Degrees is a lot!" PETMWhat happens when the Earth is drastically warmer than it is now? How can it get that way? Join us to learn about the PETM and what it could mean for our future.
Fun Paper Friday
Can the Drake equation be applied to love? One author thinks so!
Link is to a video of a talk on the paper - the original PDF seems to have disappeared from the university website.
Backus, P. (2009). Why I don’t have a girlfriend: An application of the Drake Equation to love in the UK.
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2021-10-2346 minDon't Panic GeocastEpisode 305 - "Trovant down by the river"Trovants are a mysterious rock formation and we try to understand them this week!
Science Alert Article
When on Earth Article
Wikipedia Article
Geology In Article
Fun Paper Friday
Tired of zoom meetings? Let's read a paper about them!
Shockley, Kristen M., et al. "The fatiguing effects of camera use in virtual meetings: A within-person field experiment." Journal of Applied Psychology 106.8 (2021): 1137.
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2021-10-1547 minDon't Panic GeocastEpisode 304 - "Bog Clothes" with Dr. Andy Elwood-Madden
Andy Elwood-Madden
X-Ray Diffraction
Reynolds Cup
Fun Paper Friday
How many legs does it take to freak you out?
Vetter, Richard S. "Arachnophobic entomologists: when two more legs makes a big difference." American Entomologist 59.3 (2013): 168-175.
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2021-10-091h 07Don't Panic GeocastEpisode 303 - "But do you need it?"Keeping instruments safe in the field in hard. This week John talks about his favorite disguise for instruments and telemetry.
Fun Paper Friday
Can a photo and some machine learning predict how corrupt you are as a politician?
Blavatskyy, Pavlo. "Obesity of politicians and corruption in post‐Soviet countries." Economics of Transition and Institutional Change 29.2 (2021): 343-356.
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2021-09-2456 minDon't Panic GeocastEpisode 302 - "Geophysics is Batteries"Getting power to things in the field is difficult and more complex than you'd think. This week we discuss a few of the many problems you are likely to face and ways we have fought them.
Fun Paper Friday
Reinventing the wheel happens a lot - but how often does it get published? This week we examine an example by looking at a paper that rediscovered the integral.
Tai, Mary M. "A mathematical model for the determination of total area under glucose tolerance and other metabolic curves." Diabetes care 17.2 (1994): 152-154.
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2021-09-1750 minDon't Panic GeocastEpisode 301 - "Lodestone"Magnetism is a mysterious topic and it took a long time for us humans to understand just the basics. This week we look at the history of magnetism!
Fun Paper Friday
Can whale calls be useful for seismologists? Find out in this week's Fun Paper!
Kuna, Václav M., and John L. Nábělek. "Seismic crustal imaging using fin whale songs." Science 371.6530 (2021): 731-735.
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2021-09-1150 minDon't Panic GeocastEpisode 300 - "Rock can also act as a fluid"
EPISODE 231 - "PRISON TOOLS" DR. MATT HALL
EPISODE 243 - "I WANT FOUR AWESOME SEASONS"
EPISODE 270 - "WHY GOD MADE THE EVENING SHIFT" STEVE PILTZ
EPISODE 287 - "CARTOONIST IN WORD FORM" GARY MCMANUS
EPISODE 271 - "GUESS AGAIN DUMMY" RYAN MAY
EPISODE 280 - "RED SKY IN THE MORNING" WEATHER PROVERBS
EPISODE 262 - "MY TEDDY BEAR AND ROSARY"
EPISODE 221 - "I DON'T THINK LIKE THAT" PLOTTING
EPISODE 230 - "FIRE TRIFORCE" WILDFIRES
EPISODE 273 - "VERY SPECIAL WAYS TO PICK PEOPLE UP" CAPT. JEFF GRASS
Fun Paper Friday
de Macedo, Robert Buarque, et al. "Unearthing real-time 3D ant tunneling mechanics." Proceedings of the...
2021-09-041h 00Don't Panic GeocastEpisode 299 - "Counterfeit Consciousness"The GEARS workshop is over and we discuss what lessons were learned and how it went. Then we find out how some clever computer scientists found plagiarization in the literature.
Fun Paper Friday
Cabanac, Guillaume, Cyril Labbé, and Alexander Magazinov. "Tortured phrases: A dubious writing style emerging in science. Evidence of critical issues affecting established journals." arXiv preprint arXiv:2107.06751 (2021).
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2021-08-211h 18Don't Panic GeocastEpisode 298 - "Little Nerd Arms"It's hot! Learn about wet bulb temperature and what it means for your heat-stress this summer! It involves a lot of swinging of wet socks!
Fun Paper Friday
Tamm, Sidney L. "Defecation by the ctenophore Mnemiopsis leidyi occurs with an ultradian rhythm through a single transient anal pore." Invertebrate Biology 138.1 (2019): 3-16.
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2021-08-1358 minDon't Panic GeocastEpisode 297 - "Acid Gel" Shell Formation
How Seashells are Made
Johnson, Adam B., Nina S. Fogel, and J. David Lambert. "Growth and morphogenesis of the gastropod shell." Proceedings of the National Academy of Sciences 116.14 (2019): 6878-6883.
Addadi, Lia, et al. "Mollusk shell formation: a source of new concepts for understanding biomineralization processes." Chemistry–A European Journal 12.4 (2006): 980-987.
Fun Paper Friday
Thampi, Nisha, Lekha N. Villeneuve, and Yves Longtin. "Wash your hands, Brother John!." BMJ 367 (2019).
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Shannon Du...
2021-07-2334 minDon't Panic GeocastEpisode 296 - "Explosive Erosion"Does the earth change rapidly or slowly? We discuss the competing philosophies and the evolution of.... well, the end of the road for your food!
Fun Paper Friday
Hejnol, Andreas, and José M. Martín-Durán. "Getting to the bottom of anal evolution." Zoologischer Anzeiger-a Journal of Comparative Zoology 256 (2015): 61-74.
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Shannon Dulin
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2021-07-0944 minDon't Panic GeocastEpisode 295 - "Touch the rocks"Shannon is back from field camp (and another trip) and wants to talk about digital skills. Is field camp even necessary?
Fun Paper Friday
Fukada, Eiichi. "Piezoelectricity of wood." Journal of the Physical Society of Japan 10.2 (1955): 149-154.
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2021-07-031h 12Don't Panic GeocastEpisode 294 - "enormous catastrophe"Earthquake shaking is often described on a "felt like" scale known as the Mercalli intensity scale. This episode we delve into the confusing history of the scale and what it really means.
Fun Paper Friday
Can your pasta be packed more efficiently? It can if it turns into its final shape during cooking!
Tao, Ye, et al. "Morphing pasta and beyond." Science Advances 7.19 (2021): eabf4098.
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2021-06-1952 minDon't Panic GeocastEpisode 293 - "Hot Hot Field Camp" Spontaneous PotentialWhat is spontaneous potential? It's an inexpensive technique to learn even more about the porosity, composition, and permeability of rock and soil.
Fun Paper Friday
Does your cat sit in boxes? Turns out, there's proof of why and that a cat's visual perception is quite sophisticated.
Smith, Gabriella E., Philippe A. Chouinard, and Sarah-Elizabeth Byosiere. "If I fits I sits: A citizen science investigation into illusory contour susceptibility in domestic cats (Felis silvestris catus)." Applied Animal Behaviour Science 240 (2021): 105338.
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2021-06-1236 minDon't Panic GeocastEpisode 292 - "Magic Math Stick"This was supposed to be a show on Spontaneous Potential, but we'll get to that next week! We have a potpourri of things to cover and hope you'll enjoy our derailed train!
Fun Paper Friday
Telescopes for seals? It's true!
Mauck, Björn, et al. "How a harbor seal sees the night sky." Marine mammal science 21.4 (2005): 646-656.
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2021-05-291h 06Don't Panic GeocastEpisode 291 - "Haven't you seen Dante's Peak?"Mt. St. Helens was a huge event in 1980. This week, 41 years later, we discuss the events leading up to the eruption and what happened!
Fun Paper Friday
*Turpin, Martin Harry, et al. "Bullsh!? Ability as an Honest Signal of Intelligence." Evolutionary Psychology 19.2 (2021): 14747049211000317.
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?!
2021-05-2253 minDon't Panic GeocastEpisode 290 - "COAL!"This week it's all about coal - what is it, where did it form, and how do we use it!
Fun Paper Friday
Can seismometers be used to spy on industrial processes?
Guenaga, David L., et al. "Seismically Detecting Nuclear Reactor Operations Using a Power Spectral Density (PSD) Misfit Detector." Bulletin of the Seismological Society of America (2021).
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2021-05-1550 minDon't Panic GeocastEpisode 289 - "Soil Teapot"How do geysers work? Learn more this week!
Old Faithful
Fun Paper Friday
The title says it all in this week's Fun Paper!
Wang, Lu, Zdenek Sofer, and Martin Pumera. "Will any crap we put into graphene increase its electrocatalytic effect?." ACS nano 14.1 (2020): 21-25.
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2021-05-0138 minDon't Panic GeocastEpisode 288 - "95% Chance of Chert" Mineral IdentificationHow do you identify a mineral? We talk about our favorite ways to identify minerals!
Fun Paper Friday
How does heavy water taste? Will it kill you? Find out by reading this week's Fun Paper Friday!
Abu, Natalie Ben, et al. "Sweet taste of heavy water." Communications Biology 4.1 (2021): 1-10.
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2021-04-1650 minDon't Panic GeocastEpisode 287 - "Cartoonist in Word Form" Gary McManusGary McManus joins us to talk about state climatology and extremes in Oklahoma!
Gary
Mesonet
Fun Paper Friday
Hurricanes in space? It's raining electrons in this week's fun paper Friday!
Zhang, Qing-He, et al. "A space hurricane over the Earth’s polar ionosphere." Nature communications 12.1 (2021): 1-10.
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2021-04-1055 minDon't Panic GeocastEpisode 286 - "Big Sandbox for Adults" Maciej Obryk, Kate Allstadt, Thomas RapstineThanks to Dr. Maciej Obryk, Dr. Kate Allstadt, and Dr. Thomas Rapstine for joining us to talk about the USGS experimental flume!
Flume Experiment Videos
Dr. Maciej Obryk
Dr. Kate Allstadt
Dr. Thomas Rapstine
Fun Paper Friday
This week we see how an undergarment can become a lifesaving bit of technology.
EBbra
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2021-04-031h 08Don't Panic GeocastEpisode 285 - "We're not going to tell you how to make it" Geology Field KitField Kit
Sokkia Notebook
Holster/Backpack
Handlens
Hammer
Belt
Pocket Transit
Gilson Grain Size Card
Acid Bottle
Pocket Knife
Pencils/Lead
Protractor Ruler Combo
Streak Plate
Mohs Picks
Fun Paper Friday
What can we learn about the Earth's magnetic field from tree rings?
Cooper, Alan, et al. "A global environmental crisis 42,000 years ago." Science 371.6531 (2021): 811-818.
Science Mag Article
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2021-03-261h 03Don't Panic GeocastEpisode 284 - "Dijon or Yellow" Geomajik BoxWhat's in the box?
Geophones
Load Cell
Resistivity Setup
Color
Magnetometer
Accelerometer
Turbidity Sensor
Water Velocity Sensor
Fun Paper Friday
What happens when no AI research can be reproduced? Any angry site to shame those authors!
One researcher’s mission to encourage reproducibility in machine learning
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2021-03-2058 minDon't Panic GeocastEpisode 283 - "There are spectrograms"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!
Fun Paper Friday
Thanks to listener Teresa for this week's fun paper!
Reber, Stephan A., et al. "A Chinese alligator in heliox: formant frequencies in a crocodilian." Journal of Experimental Biology 218.15 (2015): 2442-2447.
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2021-03-0748 minDon't Panic GeocastEpisode 282 - "Antidunes"This week we talk all about sediment bedforms and everyone's favorite - antidunes! Watch John's Flume Experiments from 11 years ago Froude Number Fun Paper Friday Smarandache, Florentin. Funny Problems. Infinite Study, 2000. Contact us: Show Support us on Patreon! www.dontpanicgeocast.com SWUNG Slack @dontpanicgeo show@dontpanicgeocast.com John Leeman www.johnrleeman.com @geo_leeman Shannon Dulin @ShannonDulin
2021-03-0251 min