Before the invention of photography, only the rich could afford to have portraits of themselves. But in the early 1800s, a device called the physiognotrace democratized portraiture, making it possible or everyday people to have their images captured in silhouettes. A man named William Bache traveled the United States creating hundreds of silhouette portraits with the aid of the physiognotrace, leaving behind a ledger book that gives us a rare glimpse of early America. A ledger book…laced with poison.

Guests

Robyn Asleson, curator of prints and drawings at the Smithsonian’s National Portrait Gallery

Nora Lockshin, senior conservator for archives at the Smithsonian Libraries and Archives

Wendy Bellion, Sewell C. Biggs Chair in American Art History, and associate dean for the humanities at the University of Delaware

Carolyn Hauk, doctoral student in the art history department of the University of Delaware, former intern at the Smithsonian’s National Portrait Gallery

The Toxic Book of Faces

More than 154 million treasures fill the Smithsonian’s vaults. But where the public’s view ends, Sidedoor begins. With the help of biologists, artists, historians, archaeologists, zookeepers and astrophysicists, host Lizzie Peabody sneaks listeners through the Smithsonian’s side door, telling stories that can’t be heard anywhere else. Check out si.edu/sidedoor and follow @SidedoorPod for more info. 

Society & Culture

Personal Journals

History

Philosophy

Places & Travel

The cicadas are back for some fun in the sun, and this time, they’re louder than ever! For the first time since 1803, Broods XIII and XIX will be emerging at the same time, covering the American South and Midwest with trillions of cicadas. As Smithsonian entomologist Floyd Shockley readies his nets for the biggest bug invasion in centuries, we look back at the emergence of Brood X in 2021, and explore how cicadas have captivated our human ancestors for millennia.

Guests:

Floyd Shockley, entomologist at the Smithsonian’s National Museum of Natural History

Gao Hong, professional pipa player, composer, and educator

Jim Deutsch, curator at the Smithsonian Center for Folklife and Cultural Heritage

Jan Stuart, Melvin R. Seiden Curator of Chinese Art at the Smithsonian’s National Museum of Asian Art

Cicadapalooza

"God in a cup." "Perfection." "The world's best coffee." Panamanian geisha coffee has been called many things, but never Smithsonian Bird Friendly certified. That might soon change, however, as researchers from Smithsonian National Zoo and Conservation Biology Institute’s Migratory Bird Center find new ways to grow coffee in harmony with migratory songbirds. Join us for this fully caffeinated romp through Panama’s coffee farms as we learn all about the birds and the beans. 

Guests: 

Ruth Bennett, research ecologist at the Smithsonian National Zoo and Conservation Biology Institute’s Migratory Bird Center

Katherine Araúz Ponce, fellow at the Smithsonian Tropical Research Institute and PhD student at The University of Georgia

Maria Ruiz, owner of Ruiz Coffee Distributors

Ratibor & Aliss Hartmann, owners of Finca Hartmann, specialty coffee and ecotourism 

Price Peterson, owner of Hacienda La Esmeralda

The Birds and the Beans

If you’ve bought a plane ticket recently, you’ve probably had the option to pay a few extra dollars to offset your carbon emissions. That money might go toward planting some trees… but how many trees? Researchers at the Smithsonian Tropical Research Institute are trying to answer this very question by hand-measuring trees, weighing wood, and climbing to the top of the canopy. We tag along to see how carbon is measured, and why so much ends up in tropical forests.  

Guests:

Joshua Tewksbury, director of the Smithsonian Tropical Research Institute in Panama

Helene Muller-Landau, senior scientist at the Smithsonian Tropical Research Institute researching tropical forests and ecosystems, leader of ForestGEO Global Carbon Program

David Mitre, research manager for ForestGEO at the Smithsonian Tropical Research Institute

Sergio dos Santos, project manager for the Smithsonian Tropical Research Institute’s Hydro-Meteorological and Oceanographic Monitoring Program in Panama

Luisa Fernanda Gómez Correa, intern at the Forest Carbon Lab at the Smithsonian Tropical Research Institute

Eline De Loore, graduate student at Ghent University conducting research at the Smithsonian Tropical Research Institute

Dude, Where’s my Carbon?

It started as a rumor in the cafeteria of the Smithsonian Tropical Research Institute in Panama: monkeys on an island in the Pacific were doing something no one had ever seen them do before. But when researchers went searching for these elusive capuchin monkeys, they discovered more questions than answers.

Guests:

Claudio Monteza, Smithsonian Tropical Research Institute fellow and researcher at the Max Planck Institute of Animal Behavior

Brendan Barrett, researcher at the University of Konstanz and the Max Planck Institute of Animal Behavior

Meg Crofoot, director of the Department for the Ecology of Animal Societies at the Max Planck Institute of Animal Behavior. Former Smithsonian Tropical Research Institute fellow

Monkeyin' Around on the Devil's Island

Money is power. But who's on our money - or isn’t - can be just as powerful. While Lady Liberty has graced American coins and dollars for most of our history, it wasn’t until the 1970s that a real woman appeared on a circulating American coin. But that's about to change. Congress recently authorized the creation of twenty new quarters featuring American women from history. But how do we decide whose likeness gets engraved in our national story? And who makes these decisions? We’ll follow the money to find out.

Guests:

Jennifer Schneider, former program manager at Smithsonian American Women’s History Museum, current assistant registrar of outgoing and government loans at the Smithsonian American Art Museum

Tey Marianna Nunn, former director of the American Women’s History Initiative at the Smithsonian American Women’s History Museum, current associate director for content and interpretation at the Smithsonian’s National Museum of the American Latino

Ellen Feingold, curator of the National Numismatic Collection at the Smithsonian’s National Museum of American History

Joseph Menna, chief engraver at the United States Mint

Tim Grant, public affairs manager at the United States Mint

Dave Clark, supervisor of blanking annealing and upsetting at the United States Mint

The Toxic Book of Faces

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