Tell Me Something I Don't Know

We are about to tape new episodes of Tell Me Something I Don’t Know. You’ll be able to hear them later this year in the Freakonomics Radio podcast feed. Details in this short announcement.

Why New York has skinny skyscrapers, how to weaponize water, and what astronauts talk about in space. John McWhorter is co-host; Bari Weiss is live fact-checker.

Why New York has skinny skyscrapers, how to weaponize water, and what astronauts talk about in space. John McWhorter is co-host; Bari Weiss is live fact-checker.

In this special call-in episode: why some Peruvians eat cats; why operas need repetiteurs; and why we should get rid of prisons. Michael Smerconish (CNN) is co-host; AJ Jacobs (It’s All Relative) checks the facts.

This week, we work on our survival skills: in the desert, on the tundra, and growing food in abandoned warehouses. Actress Sas Goldberg is co-host; A.J. Jacobs (author of It’s All Relative) is live fact-checker.

This week, we work on our survival skills: in the desert, on the tundra, and growing food in abandoned warehouses. Actress Sas Goldberg is co-host; A.J. Jacobs (author of It's All Relative) is live fact-checker.

How to make people like you, why you should lick rocks, and what an awkward person is really thinking. Angela Duckworth (Grit author) is co-host; Mike Maughan (Qualtrics) is live fact-checker.

How to make people like you, why you should lick rocks, and what an awkward person is really thinking. Angela Duckworth (Grit author) is co-host; Mike Maughan (Qualtrics) is live fact-checker.

Things we learn this week: dogs aren't so great at sniffing, men aren't so lazy, and New York doesn't smell so bad (anymore). Gail Simmons (Top Chef) is co-host; Jon Batiste plays his melodica for us; the live fact-checker is Mike Maughan.

Things we learn this week: dogs aren't so great at sniffing, men aren't so lazy, and New York doesn't smell so bad (anymore). Gail Simmons (Top Chef) is co-host; Jon Batiste plays his melodica for us; the live fact-checker is Mike Maughan.

Musical crickets, crop-saving wasps — and why you should pre-bug your software. John McWhorter is co-host; the live fact-checker is Bari Weiss.

Musical crickets, crop-saving wasps — and why you should pre-bug your software. John McWhorter is co-host; the live fact-checker is Bari Weiss.

Alex Wagner (CBS This Morning Saturday, The Atlantic) is our special guest co-host, with AJ Jacobs (author of It's All Relative) as real-time fact-checker. We filled this episode with insights about the true value of ground beef, sleeping in, company names, and more.

Alex Wagner (CBS This Morning Saturday, The Atlantic) is our special guest co-host, with AJ Jacobs (author of It's All Relative) as real-time fact-checker. We filled this episode with insights about the true value of ground beef, sleeping in, company names, and more.

Mary Roach (author of Stiff, Spook, Bonk, Gulp, and Grunt) is our special guest co-host, with AJ Jacobs (author of It's All Relative) as real-time fact-checker. If the promise of tractor beams doesn't pull you in, our guests also explore robotic fish, counting to infinity, and more.

Mary Roach (author of Stiff, Spook, Bonk, Gulp, and Grunt) is our special guest co-host, with AJ Jacobs (author of It's All Relative) as real-time fact-checker. If the promise of tractor beams doesn't pull you in, our guests also explore robotic fish, counting to infinity, and more.

Alex Guarnaschelli (Iron Chef America and Chopped) is our special guest co-host, with Sean Rameswaram (Radiolab Presents: More Perfect) as real-time fact-checker. TMSIDK explores the origins of food words, children's menus, and seltzer.

Alex Guarnaschelli (Iron Chef America and Chopped) is our special guest co-host, with Sean Rameswaram (Radiolab Presents: More Perfect) as real-time fact-checker. TMSIDK explores the origins of food words, children's menus, and seltzer.

Hari Kondabolu (comedian and host of Politically Re-Active) is our special guest co-host, with Sean Rameswaram (Radiolab Presents: More Perfect) as real-time fact-checker. TMSIDK reaches into our "grab bag" for fascinating facts on the downside of keeping secrets, the origin of fantasy sports, what pronunciations say about our politics, and more.

Hari Kondabolu (comedian and host of Politically Re-Active) is our special guest co-host, with Sean Rameswaram (Radiolab Presents: More Perfect) as real-time fact-checker. TMSIDK reaches into our "grab bag" for fascinating facts on the downside of keeping secrets, the origin of fantasy sports, what pronunciations say about our politics, and more.

Alexandra Petri (Washington Post columnist) is our special guest co-host, with AJ Jacobs (author of It's All Relative) as real-time fact-checker. TMSIDK covers everything from birth to earth, including pregnancy tests, parenting, monogamy, aging better, and, finally, embalming.

Alex Guarnaschelli, Alexandra Petri, Hari Kondabolu, Mary Roach, and Jemele Hill are some of the brilliant co-hosts joining us during Season 4. Here's a sneak peek of what you'll learn in 10 new episodes beginning September 17th.

Alexandra Petri (Washington Post columnist) is our special guest co-host, with AJ Jacobs (author of It's All Relative) as real-time fact-checker. TMSIDK covers everything from birth to earth, including pregnancy tests, parenting, monogamy, aging better, and, finally, embalming.

Basketball fans know how boring a game's ending can be — intentional fouls can stretch 90 seconds into 10 minutes. What if we could fix it by blowing up the last 4 minutes?

Off-Broadway actress, producer, and Guinness Record-holder Catherine Russell has played the same off-Broadway role for three decades. What’s more impressive than the play itself? She’s never called in sick.

Some of our most important inventions safely remove human waste. But what if we could use that waste to generate electricity?

From medieval times through the French Revolution, rosé ruled the wine world — and now it’s staging a comeback. Actress (and rosé fan) Miriam Shor joins as a co-host.

Senator Todd Young of Indiana wants to make government-funded social programs more effective with Social Impact Partnerships, which pair private funding with proven projects.

In 1803, Sicily and Malta won contracts to provide lemon juice to the entire British Royal Navy. Half a century later, the mafia was born.

James Altucher (host of The James Altucher Show) is our special guest co-host, with Mike Maughan (head of global insights at Qualtrics) as real-time fact-checker. TMSIDK is on the weird side of the tracks in Philadelphia with everything you've ever wanted to know about graffiti, cockroaches, tattoos, pee, and more.

James Altucher (host of The James Altucher Show) is our special guest co-host, with Mike Maughan (head of global insights at Qualtrics) as real-time fact-checker. TMSIDK is on the weird side of the tracks in Philadelphia with everything you've ever wanted to know about graffiti, cockroaches, tattoos, pee, and more.

Krista Tippett (host of On Being) is our special guest co-host, with Maggie Ryan Sandford (science writer, researcher and producer) as real-time fact-checker. Relax with a TMSIDK episode filled with facts on quiet rooms, pillows, comfort food, and ...Spam?

Krista Tippett (host of On Being) is our special guest co-host, with Maggie Ryan Sandford (science writer, researcher and producer) as real-time fact-checker. Relax with a TMSIDK episode filled with facts on quiet rooms, pillows, comfort food, and ...Spam?

Angela Duckworth (psychologist and author of Grit) is our special guest co-host, with Mike Maughan (head of global insights at Qualtrics) as real-time fact-checker. TMSIDK is in Philadelphia with a cornucopia of the world's most-renowned behavior-change experts presenting original research.

Angela Duckworth (psychologist and author of Grit) is our special guest co-host, with Mike Maughan (head of global insights at Qualtrics) as real-time fact-checker. TMSIDK is in Philadelphia with a cornucopia of the world's most-renowned behavior-change experts presenting original research.

John Moe (The Hilarious World of Depression) is our special guest co-host, with Maggie Ryan Sandford (science writer, researcher and producer) as our real-time fact-checker. TMSIDK is in Minneapolis for a show exploring the environment, morning drinking, skyways, hidden figures and more.

John Moe (The Hilarious World of Depression) is our special guest co-host, with Maggie Ryan Sandford (science writer, researcher, and producer) as our real-time fact-checker. TMSIDK is in Minneapolis for a show exploring the environment, morning drinking, skyways, hidden figures, and more.

Bapu Jena, Christine Hurley and Evan Allen are panelists. The physician-professor-economist, the comedian and the New England Revolution head athletic trainer join us in Boston for a show on Medicine. Side effects include extra kidneys, Lyme disease, hairlessness, cardiac arrest and magical mucus. WBUR's Carey Goldberg is fact-checker.

Bapu Jena, Christine Hurley and Evan Allen are panelists. The physician-professor-economist, the comedian and the New England Revolution head athletic trainer join us in Boston for a show on Medicine. Side effects include extra kidneys, Lyme disease, hairlessness, cardiac arrest and magical mucus. WBUR's Carey Goldberg is fact-checker.

Che "Rhymefest" Smith, Ginger Evans and Mary Catherine Curran are panelists. The rapper/political organizer, the commissioner of Chicago's Department of Aviation and the comedian join us in the City of Big Shoulders for a show on transitions — from here to there, from low to high and from fish to humans. Jesse Dukes is fact-checker.

Che "Rhymefest" Smith, Ginger Evans and Mary Catherine Curran are panelists. The rapper/political organizer, the commissioner of Chicago's Department of Aviation and the comedian join us in the City of Big Shoulders for a show on transitions — from here to there, from low to high and from fish to humans. Jesse Dukes is fact-checker.

Amy Chua, Liza Donnelly and Gary Gulman are panelists. The "Tiger Mom," the New Yorker cartoonist and the comedian join our dysfunctional family for this show on parenting, cousins, genealogy and medical divorce. AJ Jacobs is fact-checker.

Amy Chua, Liza Donnelly and Gary Gulman are panelists. The "Tiger Mom," the "New Yorker" cartoonist and the comedian join our dysfunctional family for this show on parenting, cousins, genealogy and medical divorce. AJ Jacobs is fact-checker.

Eugene Mirman, Ed Glaeser and Amy Glasmeier are panelists. The comedian, the Harvard economist and the MIT professor join us in one of America's oldest urban centers for a show about cities, including ruins, sewage and ghost towns. Mike Maughan is our fact-checker.

Join us in one of America's oldest urban centers for a show about cities, including ruins, sewage and ghost towns. Our panelists are: Ed Glaeser, Harvard economist and author of Triumph of the City, who doesn't know when to quit. Amy Glasmeier, professor of economic geography and regional planning at MIT and creator of the Living Wage Calculator, who loves to run as a write-in candidate. Eugene Mirman, comedian and the voice of Gene on Bob's Burgers, who is kind of a big deal in Boston. Our real-time fact-checker is Mike Maughan, head of global insights at Qualtrics.

Major Garrett, Alexandra Petri and Robby Mook are panelists in Washington, D.C. The CBS Chief White House Correspondent, the Washington Post humor columnist, and Hillary Clinton's campaign manager step out of the swamp for some more light-hearted politics: from foreign cars to the last state in the union. Femi Oke is fact-checker.

Major Garrett, Alexandra Petri and Robby Mook are panelists in Washington, D.C. The CBS Chief White House Correspondent, the Washington Post humor columnist, and Hillary Clinton's campaign manager step out of the swamp for some more light-hearted politics: from foreign cars to the last state in the union. Femi Oke is fact-checker.

Steve Levitt, Scott Turow and Bridget Gainer are panelists. For the "Freakonomics" co-author, the attorney and novelist, and the Cook County commissioner it's "game on!" as they tackle competition of all kinds: athletic, sexual, geopolitical, and the little-known battle between butter and margarine that landed in the Supreme Court. WBEZ's Tricia Bobeda, co-host of the "Nerdette" podcast, is fact-checker.

Steve Levitt, Eugene Mirman, Alexandra Petri, Che “Rhymefest” Smith and Major Garrett are among this season's stars. Here's a taste of what you'll hear in our new season. We've got 10 new episodes — one a week — beginning June 4th.

Danny Goldberg, Faith Salie and David Hajdu are panelists. The record executive, the comedian/journalist and the music critic face the music, including industrial instruments, female composers and the all-important bridge. Our real-time fact-checker is Dan Zanes, accompanied by his live band.

Danny Goldberg, Faith Salie and David Hajdu are panelists. The record executive, the comedian/journalist and the music critic face the music, including industrial instruments, female composers and the all-important bridge. Our real-time fact-checker is Dan Zanes, accompanied by his live band.