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.
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.
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!
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.
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!
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!
March 7th, 2021 | 48 mins 30 secs
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!