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Science & Medicine

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 deve...

Don't Panic Geocast Podcast Guide

Listen to Don't Panic Geocast, a Science & Medicine podcast by John Leeman and Shannon Dulin. Stream 433 episodes in English, follow new audio stories, and play episodes online on Radio and Podcast.

Show Topic

Browse this show under Science & Medicine podcasts.

Episodes

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Episodes

20 of 433 episodes

Episode 431 - Philippines Earthquake

There was a very large earthquake in the Philippines - John and Shannon break down what you need to know. We also explore the question - wha...

32:53Jun 26, 2026

Episode 430 - "I am being ambushed"

This week John and Shannon discuss the book "Slow Productivity", our other summer reading lists, and if swearing makes your exercise session...

1:02:47Jun 5, 2026

Episode 429 - "Summer Shorts" GPR

This week we talk about GPR or ground penetrating radar as Shannon considers buying one and asks what to look for. Fun Paper Friday Do trees...

48:52May 29, 2026

428: Episode 428 - "Pedagogical Gold"

This week we talk about how you should approach an outcrop in the field for the first time. What do you look for? What kind of notes do you...

56:42May 15, 2026

Episode 427 - "Feeding Tubes Yo!"

This week we help a listener identify their bizarre fossil - and it's a trace fossil! Learn all about it and find out if you'd remember more...

58:49Mar 27, 2026

Episode 426 - "Hard K Sound is Hilarious"

This week, we continue to talk about temperature with a discussion of temperature scales, where they came from, and why there are so many! F...

42:27Mar 13, 2026

Episode 425 - "How jiggly are your bits?"

What is temperature? Why do we care? Where did all of these temperature scales come from? This week, we find out! Fun Paper Friday Di Lorenz...

58:48Feb 6, 2026

Episode 424 - "Aunt Betty" Liquefaction

This week it's all about liquefaction as we explore why some caskets are above ground and how some cars get half way buried. Flame Structure...

46:32Jan 30, 2026

Episode 423 - "The rumors of our death"

We are back after a very challenging 2025 but don't panic - there is a plan! Fun Paper Friday Taloni, Andrea, Vincenzo Scorcia, and Giuseppe...

1:01:13Jan 10, 2026

Episode 422 - "Melissa"

We're still here - it has just been a very difficult time, but this week we're talking about Hurricane Melissa and Halloween Candy! Hurrican...

46:02Nov 7, 2025

Episode 421 - "Come work for you"

This week, we chat about our GEARS workshop that recently wrapped up, how it has evolved, and how it went! GEARS Workshop Fun Paper Friday H...

1:06:26Sep 19, 2025

Episode 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 — an...

50:55Aug 1, 2025

Episode 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 F...

1:04:56Jul 11, 2025

Episode 416 - "Life is a Physics Exam"

This week we talk about how we power our instruments in the field and all of the weird and wonderful ways they fail. Including getting turne...

54:59May 16, 2025

Episode 415 - "Fiat 500 Volcanic Bomb"

This week we talk hail, Vesuvius, volcanic bombs, and vitrified brains. Scandone, Roberto, Lisetta Giacomelli, and Mauro Rosi. "Death, Survi...

48:12Apr 25, 2025

Episode 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...

1:05:01Apr 18, 2025

Episode 413 - "Waterfalls I Have Loved"

Turner Falls, Oklahoma A rare waterfall that grows outward due to travertine deposition instead of eroding backward. Formed by spring-fed Ho...

57:30Apr 4, 2025