Monthly Archives: March 2015

Episode 10 – “I’ve been everywhere man”

We’ve both been on the road recently and decided to cut together a show to share our travels with you. This week Shannon will take us into the field in NM with her students, and John will take us to Lamont for a seismology student workshop.

Shannon’s Trip

Shannon took her mapping class to the field for a mapping exercise. Her trip went far better than imagined.

John’s Trip

John was at the Third Annual Seismology Student Workshop at the Lamont-Doherty Earth Observatory. We got to interview one of the organizers, Zach Eilon.

  • A few of the talks that appealed to the instrumentation nut in John were about the MERMAIDS project and using trains as a seismic source.
  • Organizers had students introduce themselves and make a crowd-sourced mind-map of what people wanted to talk about in breakout sessions. This worked incredibly well and there were many great discussions.
  • There is also a google doc setup so that everyone can continue discussing and recommending papers related to discussions we had.
  • John met more people interested in combining science and technology development in their academic career.

Fun Paper Friday

Have you ever tried to parallel park and thought that there just has to be a better way? As part of our “better living through math” series, we bring you: Blackburn, S. R. (2009). The geometry of perfect parking.

Contact us:

Showwww.dontpanicgeocast.com@dontpanicgeo – show@dontpanicgeocast.com

John Leemanwww.johnrleeman.com@geo_leeman

Shannon Dulin@ShannonDulin


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Episode 9 – “There’s an app for that”

This week we thought it would be a good idea to recap some of the apps that we use on a daily basis to get our work done. We want to explicitly state that we are fully unsponsored and that these are just our opinions, not official recommendations or endorsements We chose iPhone/iPad apps since that’s what we and many of our colleagues use. A lot of these are transferrable to the Android or other platforms. Don’t tune out or you’ll miss some tips that will help you, no matter what the platform you use is.

John’s App Picks

Shannon’s App Picks

Misc Links

Fun Paper Friday

This week we read about building sandcastles! Turns out that a lot of the worlds energy (about 10%) goes to handling granular materials and that we can learn a lot by examining simple sand.

Pakpour, M., Habibi, M., Møller, P., & Bonn, D. (2012). How to construct the perfect sandcastle. Scientific Reports, 2. doi:10.1038/srep00549

Contact us:

Showwww.dontpanicgeocast.com@dontpanicgeo – show@dontpanicgeocast.com

John Leemanwww.johnrleeman.com@geo_leeman

Shannon Dulin@ShannonDulin


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Episode 8 – “Canal Side Geologist” Making Maps

What is a geologic map?

  • Conveys many sorts of geologic information
  • The whole basis of field geology
  • Can be a surface,bedrock, subsurface, resource, soil, etc. map

Making the Map

  • Start off with your field gear…like we talked about in episode 2. We said episode 1 in the show, but that was wrong!
  • Have a base map (Geomorphologic map—we call these topos)…you need to know where you are at
  • You can use an iPad/GPS with pre-loaded topo maps, or you just have your paper basemap.
  • John likes the Garmin 62S GPS unit
  • You don’t want to become too reliant technology in the field because it could be a life or death situation
  • You need to have done your research before you go

History of geologic maps

  • Book: The map that changed the world, by Simon Winchester
  • 1793 [William Smith](http://en.wikipedia.org/wiki/William_Smith_(geologist), who was a surveyor working for canal builders, was paying attention to all the layers of rock that he was digging through
  • He noticed that he could trace the different layers of rock that were stacked on each other
  • He also noticed the different fossils inside them meant that the rocks were the same age and could be traced all over
  • Would study coal seams, which could be easily traced and spent much time in coal mines all over England
  • His work was highly plagiarized, causing him to go bankrupt and into debtor’s prison
  • Bestowed the Wollaston Medal by the Geological Society of London in 1831
  • Known as the father of English geology

Modern Tools

Fun Paper Friday

This week we go over a paper that discusses one of Shannon’s favorite sayings: All Models Are Wrong, but Some Are Useful, Field (2015)

Three main points:

1) “Given all models are wrong, what we really hope is that any new model is more useful than its predecessors and that the value added exceeds the total development costs.”

2) “It still remains to be seen how long we will need to wait for definitive results on usefulness under various conditions.”

3) “Not only are all models wrong, but their relative usefulness varies depending on location and the specific loss metric of interest.”

Contact us:

Showwww.dontpanicgeocast.com@dontpanicgeo – show@dontpanicgeocast.com

John Leemanwww.johnrleeman.com@geo_leeman

Shannon Dulin@ShannonDulin


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Episode 7 – “We don’t have ancient Greeks on other planets”

This week we talk about how sciences can weight a planet, discuss gravity, and the explosion of a military weather satellite while in orbit.

Weather Satellite Explodes

Ways to Measure Planetary Mass

  • Geometric (size and density), this doesn’t always work well
  • By triangulation and measurement of orbits of natural or artificial satellites.

Gravity

Planetary Ranging

A variety of ranging techniques can be used, including:

Fun Paper Friday

THE ASTEROID REDIRECT MISSION AND SUSTAINABLE HUMAN EXPLORATION, Gates et al.

This week we talk about capturing an asteroid with a bag and a pull string, or a spider like lander. The asteroid is then explored and moved into a lunar-like orbit for further study. The best part of all is that the ship will have an international docking system so anyone can go do science. A step towards open source science!

Contact us:

Showwww.dontpanicgeocast.com@dontpanicgeo – show@dontpanicgeocast.com

John Leemanwww.johnrleeman.com@geo_leeman

Shannon Dulin@ShannonDulin


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