To The Best Of Our Knowledge TTBOOK

The human brain is naturally mathematical. But there’s one particular kind of math people have surprisingly strong feelings about — geometry. It's the secret sauce of mathematics — different from everything else, and applicable to everything from gerrymandering to human evolution to romance novels. Original Air Date: May 28, 2022Interviews In This Hour: The 14th dimension, AI that writes romance novels, and other things explained by geometry — Did shapes make us human?Guests: Jordan Ellenberg, Stanislas DehaeneNever want to miss an episode? Subscribe to the podcast.Want to hear more from us, including extended interviews and favorites from the archive? Subscribe to our newsletter.

It’s summer, and you might be pulling out your binoculars, filling your bird feeders, and looking up as you hear a melodious song. But for many birdwatchers, it's not just a simple pastime. Identifying bird calls, tracking rare breeds through marshes and waters, and watching our feathered friends as they watch you has turned into true love of birds — an avian obsession.Original Air Date: June 17, 2023Interviews In This Hour: 'Utterly unlike other birds': The inscrutable brilliance of owls — Mark Obmascik on Competitive Bird Watching — The Indelible Myth and Meaning of Ravens — Christopher Benfey on 'A Summer of Hummingbirds'Guests: Jennifer Ackerman, Mark Obmascik, Charles Monroe-Kane, Christopher BenfeyNever want to miss an episode? Subscribe to the podcast.Want to hear more from us, including extended interviews and favorites from the archive? Subscribe to our newsletter.

Maybe it’s your grandmother’s cinnamon cookies, the garlicky tomato sauce your spouse cooked when you were first dating, or the chicken noodle soup you made every week when your kids were little. The sights, smells and tastes of certain foods can instantly remind us of a person or transport us back to a certain time in our lives. In this episode, we’ll meet kitchen ghosts from Kentucky, hear how religion and food are intertwined, and talk about how flavor evokes emotion – from grief to joy.Original Air Date: May 25, 2024Interviews In This Hour: The comfort and community of ancestral food — Slow down and take a 'flavor trip' — The perfect french fries of Kewaunee, Wisconsin — The surprising intersections of food and faithGuests: Crystal Wilkinson, Aimee Nezhukumatathil, Christina Ward, Joe HardtkeNever want to miss an episode? Subscribe to the podcast.Want to hear more from us, including extended interviews and favorites from the archive? Subscribe to our newsletter.

When you look at your body in the mirror, do you love what you see? Do you pick out the things you don’t like? Maybe you’ve heard of body positivity. But what if we just felt neutral about our bodies? In this episode, we talk about our bodies — how we move through the world in these fleshy vessels, how it feels to exist in our bodies in a world that asks so much from them. How do we live full and embodied lives?Original Air Date: September 30, 2023Interviews In This Hour: Finding Peace in Neutrality: Jessi Kneeland on Rethinking Body Positivity — The Body Speaks: Rae Johnson on Reconnecting with Ourselves to Transform Society — Multiple Identities, One Body: Sami Schalk Discusses Black Disability PoliticsGuests: Jessi Kneeland, Rae Johnson, Sami SchalkNever want to miss an episode? Subscribe to the podcast.Want to hear more from us, including extended interviews and favorites from the archive? Subscribe to our newsletter.

We celebrate Mother's Day with a collection of stories from our archives, by and about moms. Stories about care and about courage — about the work of mothering.

Original Air Date: May 13, 2023

Guests:

Stephanie Land, Eula Biss, Jacqueline Horner Plumez, Amanda Henry, Ayelet Waldman

Before family photos, or school pictures or Instagram, there were hand-drawn and painted portraits. Throughout the ages, portrait artists have captured expressions and personalities on canvas or paper, and those who view the picture interpret this “likeness” in their own way. We talk with a philosopher, a musician and a novelist about the role of portraits through history, and how we see ourselves —and others — through these deeply personal images.

Original Air Date: September 23, 2023

Guests: 

Peter Brathwaite, Maggie O'Farrell, Steven Nadler, Thijs Gerbrandy, Norbert Middelkoop