Distillations Podcast

Today we begin a three-part series, The Stages of Life, spotlighting the chemistry found in childhood, adulthood, and old age. First, a look at the brains of children, followed by the colorful world of the crayon.

On today's show we look at how delicate desert ecosystems are affected by climate change. Then the impact of toxic metals on Rocky Mountain streams.

On today's show we look at the modern power grid, which is on the brink of important changes. First, why the smart grid matters. Then, the critical mission of Caltech's Solar Army.

On today's show we look at questionable appearance enhancers. First the Beauty Historian shares some shocking beauty rituals of yore. Then a look at how Brazilian Blowouts are making salon workers sick.

On today's show we investigate the science beneath our streets. First how a team of amateur speleologists are keeping Howe Caverns safe. Then a look at Philadelphia's historic sewer system.

On today's show we learn how advances in urban agriculture are providing new access to fresh food. First how hundreds of tons of fishbones are cleaning up Oakland soil. Then tips on how to create your own backyard garden.

On today's show we see old bones made new again. First the ongoing restoration of Philadelphia's 19th Street Baptist Church. Then a discussion about what makes some old buildings greener than new ones.

On today's show chemistry takes center stage. First, why science and comedy make gut-busting bedfellows. Then the history of science as popular entertainment. 

During decades of tension between the United States and the Soviet Union over the course of the Cold War, both sides wielded science as a weapon. Find out how on today's show.

Just in time for Valentine's Day we explore the sexier side of alchemy. Historian Joel Klein explains how alchemists used passionate prose to disguise the details of their secret experiments.