

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.
Episodes
Mentioned books

Sep 3, 2022 • 41min
Episode 341 - "Scrambler Outside the Physics Department"
This week we discuss more about the three apparent forces we feel on a rotating ball:
Coriolis Force
Centrifugal Force
Euler Force
Fun Paper Friday
How can you get rid of a bad case of the hiccups?
Odeh, M., H. Bassan, and A. Oliven. "Termination of intractable hiccups with digital rectal massage." Journal of internal medicine 227.2 (1990): 145-146.

Aug 27, 2022 • 1h 4min
Episode 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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John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin

Aug 20, 2022 • 44min
Episode 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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John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin

Aug 12, 2022 • 1h 1min
Episode 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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Show
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John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin

Jul 23, 2022 • 29min
Episode 337 - "Air Guitar"
Lightning produces many phenomena, but one is pops, clicks, and whistles in the radio frequencies. Learn why, how, and what the upper atmosphere has to do with it!
Listen to a Whistler
Listen to Sferics
Radio Jove
Fun Paper Friday
Should there be speed bumps that say "rate your pain" at the entrance to the emergency room? These authors say it could be useful!
Ashdown, Helen F., et al. "Pain over speed bumps in diagnosis of acute appendicitis: diagnostic accuracy study." Bmj 345 (2012).

Jul 15, 2022 • 41min
Episode 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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John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin

Jul 1, 2022 • 26min
Episode 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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John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin

Jun 25, 2022 • 30min
Episode 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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John Leeman
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@geo_leeman
Shannon Dulin
@ShannonDulin

Jun 11, 2022 • 26min
Episode 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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John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin

Jun 3, 2022 • 27min
Episode 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.
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