Iodized Salt

Tracy shares her intentions to cover Peter Kropotkin years ago, and also unpacks some of the positive and negative aspects of his life.See omnystudio.com/listener for privacy information. 

After returning to Russia, Kropotkin was captured and imprisoned. But his life took many turns from there, and in 1902 he published his book book “Mutual Aid: A Factor of Evolution.” Research: "Peter Alekseevich Kropotkin." Encyclopedia of World Biography Online, Gale, 1998. Gale ...  Show more

Five years ago, we published an episode about the boom in home DNA testing kits, focusing on the high-flying firm 23andMe and its C.E.O. Anne Wojcicki. Their flight has been extremely bumpy since then. This update includes an additional interview with the Wall Street Journa ...

<span style="font-weight: 400;">The southern United States was hit by a dramatic epidemic of a mysterious disease called pellagra in the early twentieth century. This episode discusses the cultural and scientific sources of the outbreak -- from the cotton fields of the south, ...

<span style="font-weight: 400;">Intravenous or IV fluids are a ubiquitous treatment in medicine, and one of the most cost-effective treatments that we have, costing less than a cup of coffee in the developing world. But it wasn't always this way. In this episode, called Salt W ...

In medicine, failure can be catastrophic. It can also produce discoveries that save millions of lives. Tales from the front line, the lab, and the I.T. department.

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