Don't Panic Geocast

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 - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin

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 - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin

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 - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin

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 - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin

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 - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin

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 - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin

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 - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin

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 - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin

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 - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin

We continue our quest form last week to hit the most interesting mechanisms of catastrophic sedimentation, talk about a new notebook, and learn how to give cosmic CT scans. Floods Oklahoma flooded significantly this year! I–35 Rockslide Oregon Landslide Afghanistan river of rock Colorado Springs, CO flash flooding Bolide Deposits Overturned flaps Meteor Crater Tsunamis Alamo impact crater Breccia Suevite Weather Related Sedimentation Flood deposits The Emerald Mile - Kevin Fedarko Hurricane Deposits Hurricane Sandy deposited 3cm in Delaware Bay 1900 Galveston Storm Isaac’s Storm - Erik Larson Fun Paper Friday This week we learn how cosmic rays can be used to see through buildings, insulation, and concrete to provide easy scans without the need for expensive and complex radiation sources. Durham, J. M., Guardincerri, E., Morris, C. L., Bacon, J., Fabritius, J., Fellows, S., et al. (2015). Tests of cosmic ray radiography for power industry applications. AIP Advances, 5(6), 067111–9. http://doi.org/10.1063/1.4922006 News Article Book Block Contact us: Show - www.dontpanicgeocast.com - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin