
Behind the Scenes Minis: Hollow Earth and Canning
Tracy and Holly talk about their personal thoughts on Symmes's hollow Earth theory, and then talk about their experiences with canning and winning prizes at state fairs. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.
21 Aug 202016min

Nicolas Appert and the Invention of Canning
Canning dramatically changed how people around the world have dealt with food. Early canning efforts were kind of stabs in the dark, though – we hadn’t figured out the microbiology component yet. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.
19 Aug 202037min

Symmes’s Theory of Concentric Spheres
In 1818, something about the rings of Saturn - we don't know what, exactly - led John Cleves Symmes to conclude that the Earth was hollow. And he spent the rest of his life promoting this strange idea. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.
17 Aug 202040min

SYMHC Classics: Johann Beringer's Fossils
This 2013 episode covers Johann Beringer, the University of Wurzburg's chair of natural history and chief physician to the prince bishop in 1725. He was also unpopular, and some of his colleagues sought to discredit him. There are two versions of the story -- but which is true? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.
15 Aug 202020min

Behind the Scenes Minis: Tear Gas and Coxey
Tracy and Holly talk about the use and misuse of tear gas, and then a theory that links L. Frank Baum's work "The Wonderful Wizard of Oz" to Coxey's Army. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.
14 Aug 202010min

Coxey’s Army
Jacob Sechler Coxey led the first protest march on Washington, D.C. in the 1890s, with a plan to create jobs for the nation's unemployed population with projects that would build the country's infrastructure. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.
12 Aug 202035min

Tear Gas
Tear gasses, or lachrymator agents, are named for the lachrymal glands, which secrete tears. But tears are just one part of it. It was developed for WWI, but of course continues to be used today. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.
10 Aug 202045min

SYMHC Classics: The Kaiser's Chemist -- Fritz Haber
This 2011 episode from previous hosts Sarah and Deblina examines Fritz Haber's mixed legacy. The Nobel-Prize-winning Father of Chemical Warfare was responsible for fertilizers that fed billions, as well as poisonous gasses used during World War I. Tune in to learn more about Fritz's complicated life and work. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.
8 Aug 202022min





















