Full episode 630: Things I Mean to Know Prologue Share a clip ByDavid KestenbaumDiane Wu Guest host David Kestenbaum talks to producer Diane Wu about a list she keeps of things she means to know. Sweet potatoes vs. yams. Are they different? The same? What exactly is going on there? (8 minutes) More in ScienceView all 662: Where There Is a Will Nov. 16, 2018 Act Two: Life Is a Coin With One Side Producer David Kestenbaum took issue with the entire premise of today’s show, and explains why. 655: The Not-So-Great Unknown Aug. 24, 2018 Act One: So Over The Moon Producer David Kestenbaum tells the story of an astronaut who returns with a very unexpected view of the great beyond. 630: Things I Mean to Know Oct. 27, 2017 Act Three: The Sun Also Rises... Over There Among the things we tend to take for granted: The sun comes up and goes down like clockwork. More by David KestenbaumView all 678: The Wannabes July 5, 2019 Wannabes Six Producer David Kestenbaum drops in on some Republicans who are still trying to field a candidate to challenge this president. 673: Left Behind Apr. 19, 2019 Act Three: The Book of Death Is Long and Boring Where do we go when we die? Producer David Kestenbaum learns that the answer's pretty bureaucratic. 663: How I Read It Dec. 7, 2018 Act Two: Know That You Are Unprecedentedly Negative When health care premiums went up in New York State, a bunch of people got mad and wrote letters to the state.