Don't Panic Geocast

This week we start an accidental two-part show on catastrophic sedimentation, John’s drone experiments, and a revisit of some stories from the past. Don’t miss this not so short summer short! John’s Drone Experiment EOS Article on Philae probe Catastrophism Wikipedia article on catastrophism Originated with Bishop J. Usher Mountains, etc. were formed by unknowable, quick cataclysms… Uniformitarianism Wikipedia article on uniformitarianism James Hutton - 1795 Theory of the Earth A Short History of Nearly Everything - Bill Bryson Turbidites Lab experiments Bouma Sequences Density-flow, not tractional or frictional Wikipedia article with nice pictures Landslides et al. Can be triggered by earthquakes, volcanoes, rain, etc. Lahars are also density flows Wikipedia article on landslides Video of huge lahar in Semeru Fun Paper Friday This week we get ready for one of our future topics by talking about bolides and airblasts. Also good timing with the perseid meteor shower! Kring, D. A. (1997). Air blast produced by the Meteor Crater impact event and a reconstruction of the affected environment. Meteoritics & Planetary Science, 32(4), 517–530. Contact us: Show - www.dontpanicgeocast.com - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin

Intro The Orbital Mechanics highlighted how little we know about planetary formation, so let’s talk about Pluto and what we’ve learned from the New Horizons Mission. Pluto Basics Officially a dwarf planet in the Kuiper belt About 0.18 the radius of Earth Mass 0.178 of the moon’s Very low density Gravity 0.63 g Neptune and Pluto were both predicted to exist from orbital perturbations of Uranus Percival Lowell (founder of Lowell observatory) started the hunt for pluto in 1906. Tombaugh found Pluto using a blink comparison technique Moons of Pluto Orbit is chaotic, we can predict forwards and backwards for several million years, but over the Lyapunov time we have no idea. New Horizons New Horizons Wiki Page Launched January 20, 2006 Fly-by July 14, 2015 Long-Range Reconnaissance Imager (LORRI) Solar Wind At Pluto (SWAP) Pluto Energetic Particle Spectrometer Science Investigation (PEPSSI) Alice (UV imaging spectrometer) Ralph telescope Venetia Burney Student Dust Counter (VBSDC) Radio Science Experiment (REX) The Glitch July 4, 2015 the software went into safe mode Turned out to be a flaw in the timing of the commands in the fly-by prep software. Full functionality restored July 7 9 hour round trip radio delay Glaciers/Geology Bright heart shape observed on the side of the planet during approach is ice (Tombaugh Regio) Nitrogen ice flows like glaciers on Earth. Water ice is very brittle at surface conditions –390 F (–234 C) Active surface is exciting, it’s not a dead planet! Glacier Like Flows News Article from Science Atmosphere As UV light from the sun strikes the thin atmosphere, eventually making tholins that color the surface of the planet Some particles remain suspended, shouldn’t be over 30 km (20 mi) off the sfc. Particles were found to be up to 130 km (81 mi) above the surface Atmospheric pressure is dropping Charon Space.com Article Just as geologically exciting as Pluto Likely atmospheric in origin, but could still be geologic Low gravity of Pluto means it won’t hold onto its atmosphere…and Charon is near its same size, so it can pick up gravitationally what Pluto is putting down. Red coating could take less than a million years to form Near loss of the image Science Magazine Article Team opened the image file, but it was of Charon. They momentarily freaked wondering if the spacecraft wasn’t in the right position. Ended up that they were looking in the wrong directory on a FTP server. Future 2 months of particle and plasma instrument gathering Will choose between two Kuiper belt objects and head that way to meet in 2019 Data transmission home for about 16 months Getting the data back Tops out about 1 kilobit per second on the 70 m dishes of the deep space network Can double the rate using different polarization transmissions from the two amps “twittas”, but something else must be shut down to have enough power to run both at the same time Links Super Planet Crash APOD Pluto time tool shows you when your lighting matches that on Pluto. Tweet your photos to us and NASA! Article Announcing Haze and Ice Flows Fun Paper Friday This week’s fun paper sounds a little bit like Jurassic Park to us. What do you think? Blood vessels recovered from fossils. Schweitzer, Mary H., et al. “Soft-tissue vessels and cellular preservation in Tyrannosaurus rex.” Science 307.5717 (2005): 1952–1955. Contact us: Show - www.dontpanicgeocast.com - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin

This week we get ready for conference abstract deadlines and talk about how we prepare abstracts. Everyone is finally back in town, but not for long! Pluto show next week! Abstract deadlines: AGU 8/5, GSA 8/11 GSA, new topical abstracts (search visually by emoji!) How we prepare to write abstracts Choosing the topical material. When do you stop reporting on research?* Think about what session to submit to Mind maps Outlines Stream of conscience writing Abstract Madlibs Don’t do this steps hours before it is due. Leave days to mull it over How preliminary is your data? Is it ready for an abstract? Writing the abstract Check the conference guidelines… then check them again. Open an editor. John uses plain text editors initially. Send it around for others to look at Decide on authorship early Tools for collaborating (a whole other show) Google docs Word/dropbox Evernote (although everyone involved needs premium) Email… if you do this, please don’t admit it Other Notes AGU offering free conference registration Be sure to submit a 5-minute Pop-Up Talk Problems How to pick a session (look for others you know?) Submission system crashing Getting people to edit it! Over-reporting Fun Paper Friday This week we read about recovering old sounds from recordings with a microscope. Also hearing cursing at lab instruments in the old days. Nothing changes. A Sweet Sound: Physicists Reconstruct Primitive Recordings Applied Science SEM vinyl image Contact us: Show - www.dontpanicgeocast.com - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin

Shannon hits the road again, so we talk about volcanics, earthquakes, and other disasters that can occur in the pacific northwest. We even talk about native stories of earthquakes and tsunamis. Mount Rainier Snake River Crater Lake Lassen Volcanics Craters of the Moon Capulin Volcano 1700 Cascadia Earthquake Bonneville Slide Orphan Tsunami Story of the Thunderbird and Whale Hitchhiker’s Guide Whale Scene Great Basin National Park Fun Paper Friday When could Yellowstone erupt again? This week’s fun paper examines magma chamber refueling. Lots of neat geochemical profiles and diffusion techniques. Till, Christy B., Jorge A. Vazquez, and Jeremy W. Boyce. “Months between rejuvenation and volcanic eruption at Yellowstone caldera, Wyoming.” Geology (2015): G36862–1. Contact us: Show - www.dontpanicgeocast.com - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin

Top 10 Google Search Tips Use the tabs Use quotes Exclude results with - Google Scholar Broaden the scope of your search by removing words Think like the person writing the article Search for a filetype: Use Google Books Use the forums Mine references and link lists Other Links Linear scanner Google search characters Research tips - Still Untitled : The Adam Savage Project Six Degrees of Kevin Bacon stackoverflow Fun Paper Friday Maher Al-Dayeh & Neal Evans. Acoustic imaging of thunder from rocket-triggered lightning. 2015 Joint Assembly of American and Canadian Geophysical Societies. Abstract # AS31A–07 AGU Abstract Nature Article (with video) Contact us: Show - www.dontpanicgeocast.com - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin

Join John and special guest Dr. Elizabeth Seiver of PLOS (Public Library of Science) in Austin, TX at the scientific Python (SciPy) conference to talk open science and geek tools! Sorry for the slight echo in the room, we did what we could with the audio! Elizabeth on twitter: @tweetotaler PLOS Alison Gopnik’s Berkeley Lab SciPy 2015 arXiv Figshare Dryad Digital Object Identifier Paywall Polymath Project nvALT Simplenote Drafts TextExpander Keyboard Maestro Alfred App arXiv Citation Study Cameron Neylon's open science blog Reviewer/Authoring Guessing Study VisPy Talk from SciPy Hazel for Mac FunPaperFriday Keller, Joseph B. “Ponytail motion.” SIAM Journal on Applied Mathematics 70.7 (2010): 2667–2672. Contact us: Show - www.dontpanicgeocast.com - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin Keyboard Maestro Todo List: This week's list   *    %ICUDateTimePlus%7%Days%EEE MMMM dd% Create next week's list   ## %ICUDateTimePlus%8%Days%EEE MMMM dd%     ## %ICUDateTimePlus%9%Days%EEE MMMM dd%     ## %ICUDateTimePlus%10%Days%EEE MMMM dd%     ## %ICUDateTimePlus%11%Days%EEE MMMM dd% Weekly review and summary Create next week's plan Read all inbox folders     ## Notes     ## Last week [[To do: %ICUDateTime%yyyy 'Week' ww%]]   ## Next week [[To do: %ICUDateTimePlus%2%Week%yyyy 'Week' ww%]]  

John is on the road headed to the SciPy conference and Shannon is done with field camp. Join us to hear the wrap up and talk about how geology was used strategically in the Revolutionary War on this fourth of July weekend episode. Watchung Mountains Area geologic summary Middlebrook encampment Nike Missile Cheyenne Mountain NORAD Fun Paper Friday This week we learn about perchlorate from fireworks and how long it can reside in lakes. Wilkin, R. T., Fine, D. D., & Burnett, N. G. (2007). Perchlorate Behavior in a Municipal Lake Following Fireworks Displays. Environmental Science & Technology, 41(11), 3966–3971. http://doi.org/10.1021/es0700698 Contact us: Show - www.dontpanicgeocast.com - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin

This week Shannon summarizes her field trip and John talks about rock slides and his coming travel. We also talk about organized patterns of dripping syrup. John will be at the SciPy Conference Tropical Storm Bill has caused a lot of problems! Oklahoma Rock Slide Turner Falls John’s 3D Compass Shannon found a unique use for her field notes notebooks Rocky Mountain National Park Glacial Moraine Cirques Paternoster Lakes Sheep Mountain Anticline Yellowstone National Park Grand Tetons National Park OU Fieldcamp Blog Big Thompson Canyon Flood Fun Paper Friday This week we learn about stick patterns formed by viscous fluids falling on a surface. It could be honey on toast or telecommunications cable on the ocean floor. Check out the video as well! Brun, P. T., Audoly, B., Ribe, N. M., Eaves, T. S., & Lister, J. R. (2015). Liquid Ropes: A Geometrical Model for Thin Viscous Jet Instabilities. Physical Review Letters, 114(17), 174501–5. http://doi.org/10.1103/PhysRevLett.114.174501 Video of different fluid patterns Contact us: Show - www.dontpanicgeocast.com - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin

Join us this week as we talk about our favorite national parks while Shannon is on the road. Then we’ll talk about kinetic energy of empty and full beer bottles as part of Fun Paper Friday! Glacier National Park Heads up display for snowplows Book: Geology of National Parks Belt Supergroup Arches National Park Desert Solitaire by Edward Abbey Arch Collapses Canyonalnds National Park Upheaval Dome Fun Paper Friday Have you ever thought about how much force a beer bottle can exert when you strike something with it? Bollinger et al. have! Do you think full or empty bottles are more dangerous? Bolliger, S. A., Ross, S., Oesterhelweg, L., Thali, M. J., & Kneubuehl, B. P. (2009). Are full or empty beer bottles sturdier and does their fracture-threshold suffice to break the human skull? Journal of Forensic and Legal Medicine, 16(3), 138–142. http://doi.org/10.1016/j.jflm.2008.07.013 Contact us: Show - www.dontpanicgeocast.com - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin

This week we catch up with Shannon’s field adventure and John’s poster and pitch competition. Sheep Mountain Anticline Grand Teton National Park John participated in a 2 minute pitch contest as part of Millennium Cafe. PPG Industries sponsored the event and it was a great success! Fun Paper Friday What’s the best use for an onion? To make artificial muscles of course! Chen, C.-C., Shih, W.-P., Chang, P.-Z., Lai, H.-M., Chang, S.-Y., Huang, P.-C., & Jeng, H.-A. (2015). Onion artificial muscles. Applied Physics Letters, 106(18), 183702–6. http://doi.org/10.1063/1.4917498 Contact us: Show - www.dontpanicgeocast.com - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin