99% Invisible

All kinds of songs get stuck in your head. Famous pop tunes from when you were a kid, album cuts you've listened to over and over again. And then there's a category of memorable songs—the ones that we all just kind of know. Songs that somehow, without anyone’s permission, sneak their way into the collective unconscious and are now just lingering there for eternity. There’s one song that best exemplifies this phenomenon— "Who Let The Dogs Out" by the Baha Men.The story of how that song ended up stuck in all of our brains goes back decades and spans continents. It tells us something about inspiration, and how creativity spreads, and about whether an idea can ever really belong to just one person. Whomst Among Us Let the Dogs Out AGAIN

In most big cities, there’s a housing crisis. And empty office buildings are creating a different crisis known to urbanists as a ‘doom loop.’ Converting an office into housing can solve both of these crises at once, using one piece of property. This solution just seems so obvious and elegant. But for all the hype around this idea, there are surprisingly few adaptive reuse projects actually underway.Office Space

The story of a voice training VHS tape that helped trans women at a time when other resources were hard to access.The way a person's voice changes over time feels like a simple, and overlooked act of magic. Whether intentionally or subconsciously, our voices are products of our environments as much as they are part of us. Today we’re featuring an episode about voices from a series called Sounds Gay, a brilliant show about queer culture, community and music.Plus, guest host Swan Real discusses the universality of voice training with 99pi regular host Roman Mars.Melanie Speaks 

Welcome to our second episode of short stories all about what may be the original designed object: the trail. If you haven’t heard the first episode yet you should totally go back and listen. It’s a lot of fun.Take this episode with you on your next hike!Trail Mix: Track Two

We deconstruct and examine what might be the original designed object-- the humble trail. We discuss how park trails are designed, what makes a good trail, and...what even is a trail anyway?Trail Mix

Back in January, Bloomberg News published a story quoting an obscure government official named Richard Trumka Jr. He works with the Consumer Product Safety Commission, which regulates stuff like furniture and electronics and household appliances. Basically, the agency is supposed to make sure that the stuff we buy is safe, and won't kill us or make us sick.  The Bloomberg story talked about how a growing body of research shows that gas stoves are really bad for indoor air quality. They let off pollutants like nitrogen dioxide and carbon monoxide, and they've been linked to heart problems, cancer, and asthma. And in this story, Trumka said the government would look into it, and maybe recommend some regulations on the appliance. Within days, the US went batshit crazy and gas stoves were all over the news. They had become the subject of the latest skirmish in our seemingly never-ending culture war. Cooking with Gas

Andrew Leland grew up with full vision, but starting in his teenage years, his sight began to degrade from the outside in, such that he now sees the world as if through a narrow tube. Soon—but without knowing exactly when—he will likely have no vision left. In this episode, Andrew takes us through the fascinating history of alternative reading technologies designed for blind people and discusses his fantastic new book The Country of the Blind, which is out today!The Country of the Blind

This past May, the city of Los Angeles rolled out a brand new, state-of-the art feature for bus shelters. It’s called La Sombrita. La Sombrita is a metal screen that’s intended to provide shade for the thousands of people who ride the bus every day. The shade screen is about two feet wide, ten feet tall, and it kinda looks like a curved teal metal surfboard filled with tiny holes. Right away, Angelinos were not happy. This heated conversation got us thinking about our interview with Sam Bloch about inequality and shade and we asked Sam back to get thoughts about La Sombrita, and whether the controversial shade sail could actually be a good thing for shade-starved Angelinos. Shade Redux

In the 1980s, the little Christian comic books known as Chick Tracts were EVERYWHERE. You’d find them in movie theaters and bus station bathrooms, on subways, and all over shopping malls. People would slip them inside VHS rentals or library books. Many Chick Tracts are black and white Christian horror stories that pull from a huge cast of characters: witches, bikers, Hindus, rock and rollers, Catholics, queer people, truckers, Masons and trick-or-treaters. And at some point in the tract, the protagonist often has to make a choice: either accept Jesus as their savior, or get tossed like cordwood into a Lake Of Fire. Chick Tracts have left a really complicated legacy. Collectors are mesmerized by their edginess and kitsch. The Smithsonian regards Chick Tracts as American religious artifacts, and keeps a bunch of them in its vaults.  At the same time, many of these comics are filled with some ugly and dangerous messages, including homophobia and Islamophobia. So the same tracts that have been hoarded and preserv

In Proximity is a podcast from Proximity Media about craft, career, and creativity.Proximity founder Ryan Coogler talks all about podcasts with Roman Mars, host and creator of 99% Invisible, a sound-rich narrative podcast about architecture and design. They discuss holding pandemic meetings about the business of podcasting, Roman’s journey from science to public radio to 99% Invisible, finding the balance between being an artist and business owner plus why Roman believes a producer is the highest form of worker, collaborating on the Judas and the Black Messiah Podcast, the read-to-tape system, and Prox Recs that include a good coffee table book that will impress your friends and how to make great radio.Listen to In Proximity on Apple Podcasts, Spotify, YouTube, or your favorite podcast app.

This week we're featuring an episode of The Last ArchiveThe Last Archive is a history show. Our evidence is the evidence of history, the evidence of archives. Manuscripts, photographs, letters and diaries, government documents. Facebook posts, Youtube videos, DVDs. Oral histories. This stuff is known as the “historical record,” but of course it’s not a record, in the sense of an audio recording: It’s everything.On this episode of The Last Archive, the story of the composer Raymond Scott’s lifelong quest to build an automatic songwriting machine, and what it means for our own AI-addled, ChatGPT world.

After World War I, in Frankfurt, Germany, the city government was taking on a big project. A lot of residents were in dire straits, and in the second half of the 1920s, the city built over 10,000 public housing units. It was some of the earliest modern architecture — simple, clean, and uniform. The massive housing effort was, in many ways, eye-poppingly impressive, with all new construction and sleek, cutting edge architecture. But one room in these new housing units was far and away the most lauded and influential: and that was the kitchen.Many consider the Frankfurt Kitchen to be nothing less than the first modern kitchen. A few of these kitchens still exist, some in museums. And it's strange to see one there, because to modern eyes, it doesn’t appear to be high art. It just looks like a kitchen.The Frankfurt Kitchen

Amid the noisy bustle of Mexico City, there is a particularly iconic sound echoing on repeat in the background. This recording blares from trucks that cruise the streets all across this massive city. The crews inside are looking to buy old household items and appliances to fix and resell or to just sell for scrap. Basically, they’re scrap metal haulers, and the recording is their pitch to prospective sellers. Their pitch culminates in "o algo de fierro viejo que vendan," which basically means “or any old metal thing you’re selling.” This last bit has become the recording’s namesake: fierro viejo, literally “old iron.”How this recording (and its subsequent remixes for live performances and otherwise) managed to achieve icon status in Mexico is a story of an unlikely alchemy: a family that, through grit, talent and a bit of luck, transmuted scrap metal into poetry, music, and joy.The Siren of Scrap Metal

As electronic news gathering was gaining prominence in the early 20th century, the American Bar Association began to fear its effect on court trials and adopted something called Canon 35. This condemned the use of photography, motion picture, and radio recording within the confines of the courtroom. It wasn't a law, per se, but a code of ethics that cautioned against recording technology in the trial process. Many state and federal courts followed suit...making way for illustrators. Cameras began to creep their way back into courtrooms over the decades, but courtroom artists are still constantly used in high profile cases.Courtroom Sketch

The unlikely battle between the creator of the New York Public Library children's reading room and the beloved children’s classic Goodnight Moon.Goodnight Nobody

Happy National Train Day, everyone – for those of you who missed it: that was May 13th this year. A year ago, we started down this path with Train Set: Track One, which gave way to Track Two …and now, here we are for the final part of our train-fecta.Slip coaches, the worlds shortest trains, private cars, torpedoes, and of course, Thomas.Train Set: Track Three

LA might be the most extreme parking city on the planet. Parking regulations have made it nearly impossible to build new affordable housing, or to renovate old buildings. And parking has a massive impact on how the city looks. LA is chock full of commercial strip malls, where buildings sit alone and isolated in a sea of asphalt. And all of this is the result of one policy decision that has reshaped American cities for the last eighty years.Henry Grabar's Paved Paradise: How Parking Explains the World, tells a mesmerizing story about the strange and wonderful super-organism that is the modern American city. In a beguiling and often absurdly hilarious mix of history, politics, and reportage, Grabar brilliantly surveys the pain points of the nation’s parking crisis, from Los Angeles to Disney World to New York, stopping at every major American city in between.Paved  Paradise

In her new book Nuts and Bolts: Seven Small Inventions That Changed the World (in a Big Way), structural engineer Roma Agrawal identifies and examines the seven of most basic building blocks of engineering that have shaped the modern world: the nail, the wheel, the spring, the lens, the magnet, the string, and the pump.Click here to get the book! Available for pre-order at W. W. Norton in the US and Bookshop.org in the UK.Nuts and Bolts

Bad closed captions can be entertaining, but  they can be serious, too, because captions are a critical tool for lots of lots of people. There are the people learning a new language and of course captions are essential for people who are deaf or hard of hearing. In the US, that’s about 15% of the adult population.Craptions

There's a new movie out called Pinball: The Man Who Saved the Game. It’s a fun and extremely meta biopic telling the story of Roger Sharpe, who, with one perfect shot, helped legalize pinball in New York. That’s right – pinball was banned in many states up until the 1970s. We told that story and interviewed the REAL Roger about, oh, 400 episodes or so ago. So if you haven’t gone that far back in the catalog, we wanted to give you a free replay. After that, we’ve got a new segment with Keith Elwin, a tournament champion who made the move into designing pinball machines.For Amusement Only (Free Replay)