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 107 Episodes.
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Episode 292 - "Magic Math Stick"
May 28th, 2021 | 1 hr 6 mins
This week we go off the rails and wander from field camp to working habits to Jake Staffs!
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Episode 291 - "Haven't you seen Dante's Peak?"
May 21st, 2021 | 53 mins 15 secs
We discuss the 41st anniversary of the Mt. St. Helen's eruption and how your BS-ability is tied to intelligence.
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Episode 290 - "COAL!"
May 14th, 2021 | 50 mins 57 secs
What makes coal and why do we use it? Can seismometers be used to spy on power plants? Find out in this week's show!
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Episode 289 - "Soil Teapot"
May 1st, 2021 | 38 mins 49 secs
This week we talk about geysers and how they work. Also could bat guano be the solution to fuel cell efficiency?
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Episode 288 - "95% Chance of Chert" Mineral Identification
April 16th, 2021 | 50 mins 33 secs
Inspired by a tweet, John and Shannon talk about how to identify that mystery mineral in your hand and why some of the most obvious features may not be the most accurate.
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Episode 287 - "Cartoonist in Word Form" Gary McManus
April 9th, 2021 | 55 mins 57 secs
This week we talk with the Oklahoma State Climatologist, Gary McManus, about the wild and wacky weather of Oklahoma and the Mesonet!
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Episode 286 - "Big Sandbox for Adults" Maciej Obryk, Kate Allstadt, Thomas Rapstine
April 2nd, 2021 | 1 hr 8 mins
This week we talk about a giant experimental flume, what makes it work, and how it's being used to better understand debris flows.
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Episode 285 - "We're not going to tell you how to make it" Geology Field Kit
March 26th, 2021 | 1 hr 3 mins
Summer is coming, what do you need to go explore the outdoors and learn some geology? Get your fanny packs ready!
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Episode 284 - "Dijon or Yellow" Geomajik Box
March 19th, 2021 | 58 mins 13 secs
What should we put in a box to help someone learn geophysics or hack to create new instruments? This week we try to figure it out!
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Episode 283 - "There are spectrograms"
March 7th, 2021 | 48 mins 30 secs
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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!
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Episode 282 - "Antidunes"
March 1st, 2021 | 51 mins 51 secs
This week we talk all about sediment bedforms and everyone's favorite - antidunes! Froude Number Fun Paper Friday Contact us: Show show@dontpanicgeocast.com John Leeman Shannon Dulin