Listener Graeme asked us why rocks are hard. We explore the simple and hard explanations and then tackle the science of the perfect Martini in this week’s show! Why are Rocks Hard <ul> <li><a href= "https://en.wikipedia.org/wiki/Whinstone">Whinstone</a></li> <li><a href= "https://en.wikipedia.org/wiki/Mohs_scale_of_mineral_hardness">Mohs Scale</a></li> <li><a href= "https://en.wikipedia.org/wiki/Alan_Arnold_Griffith">A.A. Griffith</a></li> <li><a href= "https://en.wikipedia.org/wiki/Fracture_mechanics#Griffith.27s_criterion"> Griffith’s Criterion</a></li> <li><a href="https://en.wikipedia.org/wiki/De_Havilland_Comet">de Havilland Comet</a></li> <li><a href="http://amzn.to/2jKAQYq">No Highway (Nevil Shute)</a></li> <li><a href="https://youtu.be/K_FpzAOlqZc">Rocks Rock Harder (YouTube)</a></li> </ul> Fun Paper Friday <a href= "http://slowresponseteam.com/science/1600.pdf">Trevithick, C. C., et al. “Shaken, not stirred: bioanalytical study of the antioxidant activities of martinis.” BMJ 319.7225 (1999): 1600–1602.</a> Contact us: Show - <a href= "www.dontpanicgeocast.com">www.dontpanicgeocast.com</a> - <a href= "http://swung.rocks">SWUNG Slack</a> - <a href= "https://twitter.com/dontpanicgeo">@dontpanicgeo</a> - show@dontpanicgeocast.com John Leeman - <a href= "www.johnrleeman.com">www.johnrleeman.com</a> - <a href= "https://twitter.com/geo_leeman">@geo_leeman</a> Shannon Dulin - <a href= "https://twitter.com/ShannonDulin">@ShannonDulin</a>

Episode 104 - "I can't eat mashed potatoes" Devil's Tower

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. Shannon is a field geologist who tolerates technology and John is a self-proclaimed nerd that tolerates geologists.