Don't Panic Geocast

By 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. ... more

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FAQs about Don't Panic Geocast:

How many episodes does Don't Panic Geocast have?

The podcast currently has 432 episodes available.

Don't Panic Geocast episodes:

October 30, 2015Episode 41 - "The Nino (Pumpkin Spice Latte Season)"
This week we talk about El Nino, what it is, how it works, and what it means for this winter. We also discuss pumpkin carving injuries on this week’s Fun Paper Friday!
Spanish for “the Nino” reference
Bill Nye El Nino Skit
ENSO
The Southern Oscillation and Its Link to the ENSO Cycle (NOAA)
ENSO Current Status (NOAA Slide Deck)
The ENSO Cycle (NOAA)
ENSO Blog
ENSO General Info
El Nino
Indices of El Nino Evolution (Trenberth and Stepaniak, 2000)
National Data Buoy Center
Current Satellite SSTs
El Nino General Info
NOAA El Nino Portal
Nino Areas Map
Consequences
Triple Hurricane Picture
Hurricane Patricia
Exacerbating an already bad drought in the Pacific NW.
Helping to alleviate drought in the SW and OK.
El Nino years usually mean much lower chances of Atlantic Hurricane development and landfall
Fun Paper Friday
This week we look at experiments about how safe different pumpkin carving tools are. Not for the faint of heart!
Marcus, A. M., Green, J. K., & Werner, F. W. (2004). The safety of pumpkin carving tools. Preventive Medicine, 38(6), 799–803. http://doi.org/10.1016/j.ypmed.2004.01.008
Contact us:
Show - www.dontpanicgeocast.com - @dontpanicgeo - [email protected]
John Leeman - www.johnrleeman.com - @geo_leeman
Shannon Dulin - @ShannonDulin
...more
40min
October 23, 2015Episode 40 - "Pumpkin Sedimentation"
This week Shannon talks about back to back field trips, broken airplanes, and rain. John relates a story about a strange northeast tradition and shares a traffic related fun paper.
Shannon’s Trip
Paper about zebra dolomite
Sand Bar Videos
Glen Canyon Dam
Hoover Dam
Riffle
Lee’s Ferry
Kring Paper in Episode 30
Meteor Crater
Lowell Observatory
Punkin’ Chunkin’
Howard, PA Chunkin’ Website
Graupel
World Championship Punkin Chunkin
Smokin’ Lamas
Fun Paper Friday
Have you ever been stuck in traffic and wondered why the traffic jam moves like a wave? This week we discuss the dynamics of traffic jams.
Giant traffic jam in China
Kerner, B. S. (1998). Experimental features of self-organization in traffic flow. Physical Review Letters, 81(17), 3797–3800. http://doi.org/10.1103/physrevlett.81.3797
Flynn, Morris R., et al. “Self-sustained nonlinear waves in traffic flow.” Physical Review E 79.5 (2009): 056113.
Contact us:
Show - www.dontpanicgeocast.com - @dontpanicgeo - [email protected]
John Leeman - www.johnrleeman.com - @geo_leeman
Shannon Dulin - @ShannonDulin
...more
32min
October 16, 2015Episode 39 - "There are some blow up bubbles" Mars
This week we talk about water on Mars and aeroelastic flutter of bird wings.
John got married with drones and garter cannons. Keep an eye on his Twitter feed for more videos soon.
We have a GSA poster and AGU Talk!
Mars
Mars facts from NASA
Mars Cultural Fascination
The Martian Way
Seveneves
The Martian
Elon Musk Bio
Water on mars
Recurring Slope Linea (RSL), identified in 2011 by Lujendra Ojha (then student, now at Georgia Institute of Technology)
Great pictures of RSLs
Recurring slope lineae in equatorial regions of Mars (Nature Geoscience)
HiRISE observations of Recurring Slope Lineae (RSL) during southern summer on Mars (Icarus)
Detection of Perchlorate and the Soluble Chemistry of Martian Soil at the Phoenix Lander Site (Science)
Phoenix Lander *Spectral evidence for hydrated salts in recurring slope lineae on Mars (Nature Geoscience)
Fun Paper Friday
Clark, C. J., Elias, D. O., & Prum, R. O. (2011). Aeroelastic flutter produces hummingbird feather songs. Science, 333(6048), 1430–1433. http://doi.org/10.1126/science.1205222
Heterodyne
Convolution
Neat Audio Convolution Demo Video
Contact us:
Show - www.dontpanicgeocast.com - @dontpanicgeo - [email protected]
John Leeman - www.johnrleeman.com - @geo_leeman
Shannon Dulin - @ShannonDulin
...more
37min
October 09, 2015Episode 38 - "I was kind of crafty about it, switching aisles"
This week we interview Kina McAllister to talk about her science activity kits for girls and then talk about the optimal office temperature setting in this week’s Fun Paper Friday!
STEMBox Website
@STEMBox Twitter
STEMBox Facebook
Original KickStarter
@KinaButterJelly on Twitter
Woodland Park Zoo
HiveBio
EDC Show with Bullet Journal Links
Fun Paper Friday
This week we have a paper with a horrible title, but a very interesting study of what the best temperature is for an office space.
Kingma, B., & van Marken Lichtenbelt, W. (2015). Energy consumption in buildings and female thermal demand. Nature Climate Change, 1–5. http://doi.org/10.1038/nclimate2741
Contact us:
Show - www.dontpanicgeocast.com - @dontpanicgeo - [email protected]
John Leeman - www.johnrleeman.com - @geo_leeman
Shannon Dulin - @ShannonDulin
...more
57min
October 02, 2015Episode 37 - "We solved all those problems, for all time" Open Hardware Summit
Open Hardware Summit 2015
Hackable badge!
Talks
AnnMarie Thomas (Univ. St. Thomas) “Making Makers”
Jason Kessler and Jon Ruston talked about ULTRASCOPE
Mach 30 president J. Simmons showed new cad/modeling linked tools that they are using to create open thrusters, rockets, etc.
Yavin cold gas thruster as test bed
Joshua Pearce showed how open hardware in science can save us a bundle think of all the outdated lab equipment sitting around unsupported.
Checkout Joshua’s book “Open-Source Lab” and new “Building open source hardware” by Alicia Gibb
Bruce Boyes on the Wright Brothers and Patents
Open prosthetic development
Open fluid chemistry for biology studies with an Arduino shield
Open Hardware Certification
Fun Paper Friday
This fun paper looks at how using ice shells can reduce drag and some of the non-intuitive physics behind it.
Gizmodo article
Pykrete
Vakarelski, I. U., Chan, D. Y. C., & Thoroddsen, S. T. (2015). Drag Moderation by the Melting of an Ice Surface in Contact with Water. Physical Review Letters, 115(4), 044501–4. http://doi.org/10.1103/PhysRevLett.115.044501
Contact us:
Show - www.dontpanicgeocast.com - @dontpanicgeo - [email protected]
John Leeman - www.johnrleeman.com - @geo_leeman
Shannon Dulin - @ShannonDulin
...more
53min
September 25, 2015Episode 36 - "We're looking at something the size of Connecticut" with Prof. Charles Ammon
This week special guest Prof. Charles Ammon joins us to discuss the recent magnitude 8.3 Chile earthquake. We then talk about coffee and how it can move your body clock around.
Show Links
USGS Earthquake Page
Shaking from several views (YouTube)
IRIS Teachable Moment PDF
USGS Finite Fault Model
PAGER for this Event
@CharlesAmmon on Twitter
Prof. Ammon’s Epicentral Blog
Epicentral (iPhone App)
Epicentral+ (iPad App)
Earth Motion Monitor (Mac)
Fun Paper Friday
Burke, T. M., Markwald, R. R., & McHill, A. W. (2015). Effects of caffeine on the human circadian clock in vivo and in vitro. Science Translational …, 7(305), 305ra146–305ra146. http://doi.org/10.1126/scitranslmed.aac5125
Science Article Summary
Colorado News Release
Contact us:
Show - www.dontpanicgeocast.com - @dontpanicgeo - [email protected]
John Leeman - www.johnrleeman.com - @geo_leeman
Shannon Dulin - @ShannonDulin
...more
44min
September 18, 2015Episode 35 - "So often we disconnect these things" Why study geology?
This week we discuss how geoscience can enrich anyone’s life. Join the discussion and then learn about how much cosmic dust falls on us every day!
John was on The Orbital Mechanics Episode 24 talking about SMAP.
Why Learn Geology
Your World Rocked (Slate)
Spatial thinking/reasoning
Thinking in 3D is hard… 4D is harder
3D Mouse
Resources
We need resources for our modern lifestyle
Earth is continuously changing (as pointed out in the article), so preserving it as is should NOT be the goal, but preserving a habitable planet.
Place based knowledge
Connects you directly to the land. Everyone has a “place” and by further exploring it through geology it can create a deeper connection.
Time
“Any good intro geology course is actually a course in time”
Geologic time…it’s really big!
Pale Blue Dot Photo
Puts things in perspective. Carl Sagan’s Pale Blue Dot commentary does a great job of showing spatial and temporal smallness. It doesn’t make you feel small though, it makes you feel free. Chokes me up every time; Watch it here
Fun Paper Friday
How much cosmic dust falls on the Earth everyday? Kilograms, tons? Find out on this week’s segment!
Gardner, C. S., Liu, A. Z., Marsh, D. R., & Feng, W. (2014). Inferring the global cosmic dust influx to the Earth’s atmosphere from lidar observations of the vertical flux of mesospheric Na. Journal of …, 119(9), 7870–7879. http://doi.org/10.1002/2014ja020383
Contact us:
Show - www.dontpanicgeocast.com - @dontpanicgeo - [email protected]
John Leeman - www.johnrleeman.com - @geo_leeman
Shannon Dulin - @ShannonDulin
...more
52min
September 11, 2015Episode 34 - "The Earth isn’t a big bar magnet"
Join us to talk about the Earth’s magnetic field. It protects us and has complication on more levels than you think. It produces the aurora and helps us date rocks and structures!
Three Cat.4 Hurricanes in the Pacific
Godzilla El Nino
Magnetic Field History
William Gilbert
On the Magnet
OU Galileo Exhibit
Geodynamo
Dynamo theory
Inner core
Outer core
Magnetohydrodynamics
Geocentric Axial Dipole Hypothesis (GAD)
Glatzmaier-Roberts geodynamo model notes
The Core (movie)
Geomagnetic pole
The Magnetic Field
Magnetic inclination
Magnetic declination
Been around about 3 billion years
Reverses from time to time (some details)
Secular variation
Archaeomagnetic dating
USGS Geomagnetism Program
Find your magnetic field at the NGDC
Aurora
Tesla (unit)
Ionospheric dynamo
Radio propagation
National High Magnetic Fields Laboratory
Magnetic Field Sensors
Proton precession magnetometer
Fluxgate magnetometer
SQUID
Caesium vapor magnetometer
John’s 3D-Compass
@StationCDRKelly
Fun Paper Friday
Studying rockfalls with seismometers and infrasound could save lives and turns out to be both challenging and interesting!
Zimmer, V. L., & Sitar, N. (2015). Detection and location of rock falls using seismic and infrasound sensors. Engineering Geology, 193(C), 49–60. http://doi.org/10.1016/j.enggeo.2015.04.007
Contact us:
Show - www.dontpanicgeocast.com - @dontpanicgeo - [email protected]
John Leeman - www.johnrleeman.com - @geo_leeman
Shannon Dulin - @ShannonDulin
...more
54min
September 04, 2015Episode 33 - "Where's that little nerdy guy?"
This week we thought we would go through our every day carry (EDC) essentials for braving the academic jungle. As most of us go back to the academic year, it’s important to fine tune what we carry to do our job anywhere.
John
Nothing Special
Notebook(s)
Pencil/Pen Bag
iPad
iPhone
MacBook Air
Apple Watch
Unusual
Grid it for cables
USB cables of every type
USB to DC breakout cable
Arduino
Wildfire
Slide Clicker
Every possible video adapter for my laptop (VGA, HDMI, DVI)
Goal Zero Venture 30
Jackery Charger
Swiss army tinker
Folding knife
Wireless headphones
Shannon
Nothing special
Windows 10 laptop (maybe not the best to carry around)
Field notes notebook
Bullet journal
Paper planner
Tablet(s)
Unusual
Leatherman Micra
Handlens
Fun Paper Friday
Do you like beer? This week we discuss how it could be affecting your paper output!
Grim, T. (2008). A possible role of social activity to explain differences in publication output among ecologists. Oikos, 0(0), 080208022927783–0. http://doi.org/10.1111/j.2008.0030–1299.16551.x
Contact us:
Show - www.dontpanicgeocast.com - @dontpanicgeo - [email protected]
John Leeman - www.johnrleeman.com - @geo_leeman
Shannon Dulin - @ShannonDulin
...more
40min
August 28, 2015Episode 32 - "I mean, they still make rulers with inches too"
Classes are back in session, and we’re back to normal episodes. Join us to talk about Brunton pocket transits, argue about strike and dip, and discuss the zombie apocalypse.
AAPG abstracts are due September 24!
Windows 10 isn’t supporting external USB microphones right now. What?
Checkout Angie’s beautiful photos. Part 1 Part 2
What is a Brunton?
A compass, but a really expensive one with lots of features
Generally referring to the conventional pocket transit
About the size of a deck of cards, but worth $500
It’s a very accurate compass/clinometer combination that we use to take strike and dip measurements amongst others
Can also sight bearings to objections or angle from horizontal by using the sights and mirror
Can set the magnetic declination. Just don’t forget!
Strike and Dip
Two numbers that define the orientation of a plane in 3-dimensional space using an agreed upon handedness convention
Dip direction is the direction water would run if poured on the rock, angle is how steep that rock is inclined to horizontal.
Strike is 90 degrees to dip, but conventions are mixed and messy
Azimuth vs. Quadrant
Compasses are available in two formats.
This has started holy-wars
History of the Brunton
Pocket transit invented by David W. Brunton (1849–1927) and patented in 1894
He was a Canadian mining engineer that was tired of carrying heavy survey equipment… any of us can relate
Neat photo of early Brunton
A bunch of businessmen in WY bought it and started Brunton Inc. in Riverton. (1972)
Silva of Sweden
Fiskars (Finnish company)
Issues
Needs to have the needle weighted when at very high magnetic dip angles.
Cheap knock-off compasses are everywhere
Changed the way the needle is balanced, and oftentimes it comes unscrewed with no way to fix it. This was a change in manufacturing that many people are unhappy about.
Fun Paper Friday
Zombies! This week we learn about mathematical modeling of zombie disease spread an how it relates to real world problems… mainly politics.
Munz, P., Hudea, I., Imad, J., & Smith, R. J. (2009). When zombies attack!: mathematical modelling of an outbreak of zombie infection. Infectious Disease Modelling Research Progress, 4, 133–150.
Contact us:
Show - www.dontpanicgeocast.com - @dontpanicgeo - [email protected]
John Leeman - www.johnrleeman.com - @geo_leeman
Shannon Dulin - @ShannonDulin
...more
50min

FAQs about Don't Panic Geocast:

How many episodes does Don't Panic Geocast have?

The podcast currently has 432 episodes available.

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