John Leeman
Co-Host of Don't Panic Geocast
John received a B.S. is geophysics and B.S. in meteorology from the University of Oklahoma, then proceeded onto to a PhD in geoscience at Penn State in which he studied slow earthquakes as an experimental rock mechanics researcher. John has worked on gas hydrates experiments at Oak Ridge National Lab as well as worked on telemetry software for NASA JSC. Currently he operates Leeman Geophysical located in Siloam Springs, Arkansas. The company builds custom laboratory equipment as well as educational materials. In his off time John enjoys hiking, brewing beer, restoring antique engines, and flying airplanes.
John Leeman has hosted 115 Episodes.
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Episode 396 - "Please Don't Call the FBI" GEARS 2024
September 6th, 2024 | 53 mins 34 secs
This week John and Shannon summarize the GEARS 2024 workshop, lessons learned, and talk about a record air pressure that was just a fluke.
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Episode 395 - "Pressure Finds a Way"
August 23rd, 2024 | 39 mins 47 secs
Learn about the explosion at Yellowstone's Biscuit Basin site and what it means for the park. We also talk about drunk fruit flies and what they are teaching us about alcoholism.
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Episode 394 - "Gates of Hell" Darvaza Gas Crater
August 16th, 2024 | 43 mins 52 secs
This week we look at a geological oddity in Turkmenistan and see how getting a puppy can give you the blues.
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Episode 393 - "Fujiwhara Effect!" Twisters Movie Review
July 26th, 2024 | 1 hr 10 mins
We went to watch Twisters and review it from the standpoint of two people who have chased storms professionally. Also what do philosophers have to say about the movie?
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Episode 392 - "Revisions"
July 12th, 2024 | 44 mins 42 secs
This week we talk about when and how things get revised from classes to papers to theories. Also we read a paper about a curious cure for poisoning.
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Episode 391 - "The Things We Take For Granted"
June 28th, 2024 | 32 mins 6 secs
This week we discuss JMARS and how you can explore the planets at home with just a few clicks of the mouse. Field camp is almost over and we'll be back to our regular shorts soon!
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Episode 390 - "Stretch Aquarium"
May 24th, 2024 | 30 mins 6 secs
What is a flume and how do sedimentologists used them to understand depositional systems? This and how likely you are to be bitten by a rattlesnake if you step on it in this summer's first Don't Panic Summer Short!
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Episode 389 - "FieldVolt"
May 17th, 2024 | 52 mins 40 secs
Stop losing power and data in the field. John and Shannon discuss the new FieldVolt open power standard.
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Episode 388 - "Screaming Eagle"
May 3rd, 2024 | 1 hr 9 mins
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.
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Episode 387 - "Adorable Baby Drilling Rig"
April 26th, 2024 | 46 mins 55 secs
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.
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Episode 386 - "Rock Colloid"
April 19th, 2024 | 55 mins 46 secs
What's tiny, rocky, and alive? Forams! Learn about forams and what diseases James Bond may get while traveling to study them.
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Episode 385 - "Father Sky Goes Away"
April 12th, 2024 | 51 mins 1 sec
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.
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Episode 384 - "Glaciers caused the great lakes, now we have them, the end" Alexis Dahl
April 5th, 2024 | 57 mins 44 secs
This week we interview YouTube science creator, science writer, and communicator Alexis Dahl to learn about the rocks of Michigan's UP and how scientists can do a better job of sharing what they do.
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Episode 383 - "Logarithmically Fades Away"
March 29th, 2024 | 46 mins 26 secs
This week we see how scientists break down the Earth into 7 or more spheres and why that is and isn't a good idea. We also explore a fun paper about graphene that is just full of crap.
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Episode 382 - "A world without attenuation would be unbearably noisy"
March 15th, 2024 | 46 mins
What can we get from mining the moon? Should we? Who can do it? Why should we do it? That and more in this week's show!
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Episode 381 - "Desk Sedimentology"
March 8th, 2024 | 50 mins 12 secs
This week we talk about new national parks, sticky notes, and empirical evidence about fly fishing.