Rioters carried many familiar flags during the January 6th insurrection at the United States Capitol -- Confederate, MAGA, as well as some custom-made ones like a flag of Trump looking like Rambo. Except for onlookers who were already familiar with the design, it would have been easy to overlook one particular bright yellow flag with three red horizontal stripes across the center. This was the flag of South Vietnam. There were actually several confounding international flags present at the Capitol riot that day: the Canadian, Indian, South Korean flags, all were spotted somewhere in the mayhem. But what was peculiar about the Vietnamese flag being there was that it's not technically the flag of Vietnam but the Republic of Vietnam, a country that no longer exists. And what this flag stands for (or should stand for) remains a really contentious issue for the Vietnamese American community. Changing Stripes Subscribe to SiriusXM Podcasts+ on Apple Podcasts to listen to ad-free new episodes and get exclusive access to bonus content.

The Sears & Roebuck Mail Order Catalog was nearly omnipresent in early 20th century American life. By 1908, one fifth of Americans were subscribers. Anyone anywhere in the country could order a copy for free, look through it, and then have anything their heart desired delivered directly to their doorstep. At its peak, the Sears catalog offered over 100,000 items on 1,400 pages. It weighed four pounds. Today, those 1,400 pages provide us with a snapshot of American life in the first decade of the 20th century, from sheep-shearing machines and cream separators to telephones and china cabinets. The Sears catalog tells the tale of a world -- itemized. And starting in 1908, the company that offered America everything began offering what just might be its most audacious product line ever: houses. Buy The 99% Invisible City! Subscribe to SiriusXM Podcasts+ on Apple Podcasts to listen to ad-free new episodes and get exclusive access to bonus content.

When it comes to English spelling and pronunciation, there is plenty of rhyme and very little reason. But what is the reason for that? Why among all European languages is English so uniquely chaotic today? To help us answer that question, we spoke with linguist and longtime friend of the show, Arika Okrent, author of the new book Highly Irregular: Why Tough, Through, and Dough Don't Rhyme and Other Oddities of the English Language. In it, Arika explores the origins of those phonetic paradoxes, and it turns out some of the reasons for confusion are as counterintuitive as the words themselves. Corpse, Corps, Horse and Worse Subscribe to SiriusXM Podcasts+ on Apple Podcasts to listen to ad-free new episodes and get exclusive access to bonus content.

Presidential libraries are tributes to greatness, "[a] self-congratulatory, almost fictional account of someone's achievements, where all the blemishes are hidden," explains one New York architect. But they're also a "weird mix of a historical repository of records and things that have a lot of meaning." Studying their origins and evolution, one can begin to see how presidential libraries have always involved tensions and contradictions. Yankee Pyramids The premise of using the extreme example of Trump to heighten the contradictions of executive branch norms is what we do on Roman's other podcast What Trump Can Teach Us About Con Law. It's good! And it's not really about Trump, so don't worry. It's essentially a current events based Constitutional Law class taught by an incredible professor, Elizabeth Joh. We included the latest episode here for you to check out. Subscribe to SiriusXM Podcasts+ on Apple Podcasts to listen to ad-free new episodes and get exclusive access to bonus content.

The great Jacob Goldstein, author of Money: The True Story of a Made Up Thing, stops by to tell us two stories about the design of paper currency around the world. First, the story of the making of the Euro banknotes, the design of which was supposed to unify Europe and not rely on any one country's national heroes or monuments. Then we learn about China's early pioneering experiments in paper currency, hundreds of years before it caught on in the rest of the world. Real Fake Bridges Subscribe to SiriusXM Podcasts+ on Apple Podcasts to listen to ad-free new episodes and get exclusive access to bonus content.

Axolotls are nature’s great regenerators. They are able to grow back not just their tails, but also legs, arms, even parts of vital organs, including their hearts. This remarkable ability is one of several traits that turned the axolotl into a scientific superstar. The axolotl is one of the most abundant laboratory animals in biology. They can be found swimming in tanks at universities all around the world. But in the wild they’ve only ever been found in one place: Mexico City. Model Organism Subscribe to SiriusXM Podcasts+ on Apple Podcasts to listen to ad-free new episodes and get exclusive access to bonus content.

In 2015 the world was divided into two warring factions overnight. And at the center of this schism was a single photograph. Cecilia Bleasdale took a picture of a dress that she planned to wear to her daughter's wedding and that photo went beyond viral. Some saw it as blue with black trim; others as white with gold trim. For his part, Wired science writer Adam Rogers knew there was more to the story -- a reason different people looking at the same object could come to such radically divergent conclusions about something as simple as color. Rogers recently wrote a book titled Full Spectrum: How the Science of Color Made Us Modern. In this episode, Roman Mars talks with the author about how the pursuit to organize, understand, and create colors has been one of the driving forces shaping human history, starting with the story of this hotly debated piece of apparel from 2015 then winding back through built environments of global World's Fairs. Full Spectrum Subscribe to SiriusXM Podcasts+ on Apple Podcasts to listen to ad-free new episodes and get exclusive access to bonus content.

What does water mean to you? In this feature, author Bonnie Tsui (Why We Swim), actress Joy Bryant, submarine pilot Erika Bergman, figure skater Elladj Baldé, 85-year-old synchronized swimmer Barbara Eison-White, professional mermaid Olivia Gonzales, and others share stories about the many ways water influences our lives. From Pop-Up Magazine, creators of this Field Guide series: "We recommend listening outside, near water if you can. Head to the ocean if you’re on the coast. Or walk to a nearby pond or creek. Sit by a fountain at a park. Or just pour yourself a glass of water." Plus, an excerpt of Roman Mars On The Anatomy Of A Good Story (w/ Michelle Fournet, Roman Mars, Pedro Pascal), part of the Periodic Talks podcast. It's a show about what gets people curious, from virtual experiences to celestial bodies, with Gillian Jacobs (Community, Netflix's LOVE) and Diona Reasonover (NCIS) A Field Guide to Water Subscribe to SiriusXM Podcasts+ on Apple Podcasts to listen to ad-free new episodes and get exclusive access to bonus content.

When Roman Mars and Kurt Kohlstedt were promoting The 99% Invisible City in late 2020, one question came up over and over again in conversations and interviews about our built environment: in what ways will the COVID pandemic change cities long term? Realistically, it's hard to answer a question about the future while in the midst of a crisis, but we can look to and extrapolate from precedents, like: designs born out of past disasters. War, Famine, Pestilence, and Design Subscribe to SiriusXM Podcasts+ on Apple Podcasts to listen to ad-free new episodes and get exclusive access to bonus content.

Officially titled The Book of Tasty and Healthy Food, it was often known simply as “Kniga” (translated: "book") because it was one of the only cookbooks to exist in the Soviet Union. The volume is peppered with glossy photographs of really lavish spreads and packed with text as well. There are recipes for lentils and crab salad and how to cook buckwheat nine different ways. But this book was meant to do so much more than show people how to make certain dishes — it's a Stalinist document aimed at addressing hunger itself in the USSR. "The book" was at the vanguard of a radical Soviet food experiment that, despite its numerous obstacles, transformed Russian cuisine. The Book of Tasty and Healthy Food Subscribe to SiriusXM Podcasts+ on Apple Podcasts to listen to ad-free new episodes and get exclusive access to bonus content.

Britt Young is a geographer and tech writer based in the Bay Area. She also has what's called a "congenital upper limb deficiency." In other words, she was born without the part of her arm just below her left elbow. She's used different sorts of prosthetic devices her whole life, and in 2018, she celebrated the arrival of a brand new, multi-articulating prosthetic hand. This prosthetic hand has a sleek carbon fiber casing, with specific pre-programmed grips that she can control just by flexing the muscles in her residual limb. She can use a precision pinch to pick a hairpin off of the table, or a Hulk-style power fist to squeeze objects. This kind of assistive technology has been life-changing for a lot of people who have limb differences. But for Britt, in particular, it hasn't been life-changing at all. In fact, her cutting-edge bionic arm has been a pretty major disappointment. "It's just not what you imagine. It's not like I'm like everyone else now, it's something different." The Lows of High Tech Subscribe to SiriusXM Podcasts+ on Apple Podcasts to listen to ad-free new episodes and get exclusive access to bonus content.

Hanko, sometimes called insho, are the carved stamp seals that people in Japan often use in place of signatures. Hanko seals are made from materials ranging from plastic to jade and are about the size of a tube of lipstick. The end of each hanko is etched with its owner’s name, usually in the kanji pictorial characters used in Japanese writing. This carved end is then dipped in red cinnabar paste and impressed on a document as a form of identification. Hanko seals work like signatures, only instead of signing on a dotted line, you impress your hanko in a small circle to prove your identity. But unlike a signature, which you can make with any old pen or touch screen, in Japan you need to have your own personal hanko with you whenever you stamp something, and you have to stamp it in person. Subscribe to SiriusXM Podcasts+ on Apple Podcasts to listen to ad-free new episodes and get exclusive access to bonus content.