Gander International Airport

Cartoon sound effects are some of the most iconic sounds ever made. Even modern cartoons continue to use the same sound effects from decades ago. How were these legendary sounds made and how have they stood the test of time? This story originally appeared on Twenty Thousand Hertz Subscribe to Twenty Thousand Hertz in Apple Podcasts, RadioPublic, or wherever you listen. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

12 Maalis 201927min

The tradition of the Tomb of the Unknowns goes back only about a century, but it has become one of the most solemn and reverential monuments. When President Reagan added the remains of an unknown serviceman who died in combat in Vietnam to the Tomb of the Unknowns in Arlington National Cemetery in 1984, it was the only set of remains that couldn’t be identified from the war. Now, thankfully, there will never likely be a soldier who dies in battle whose body can’t be identified. And as a result of DNA technology, even the unknowns currently interred in the tomb can be positively identified. The Known Unknown Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

6 Maalis 201945min

Frank Lloyd Wright changed the field of architecture, and not just through his big, famous buildings. Before designing many of his most well-known works, Wright created a small and inexpensive yet beautiful house. This modest home would go on to shape the way working- and middle-class Americans live to this day. Usonia Redux This episode is a recut combination of episodes 246 & 247 Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

26 Helmi 201939min

In the 1950s, Los Angeles was an up-and-coming city but wasn’t quite there yet. City leaders were looking for a way to boost Los Angeles's profile as a world class city and also give Angelenos something to rally behind. They believed that what L.A. really needed was a baseball team. They picked Chavez Ravine, near downtown LA, as the perfect home for a perfect new stadium, but the land had been home to a vibrant community of Mexican and Mexican American families for decades. Beneath the Ballpark Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

20 Helmi 201930min

Where does your recycling go? In most places in the U.S., you throw it in a bin, and then it gets carted off to be sorted and cleaned at a Materials Recovery Facility (MRF). From there, much of it is shipped off to mills, where bales of paper, glass, aluminum, and plastic are pulped or melted into raw materials. Some of these mills are here in the U.S. And once upon a time, many of them were in China. Since 2001, China was one of the biggest buyers of American recycling.  That is, until last year, when China pulled a move that no one saw coming: they stopped buying. National Sword Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

13 Helmi 201941min

Here at 99% Invisible, we think about color a lot, so it was really exciting when we came across a beautiful book called The Secret Lives of Color by Kassia St. Clair It’s this amazing collection of stories about different colors, the way they’ve been made through history, and the lengths to which people will go to get the brightest splash of color. The Secret Lives of Color Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

5 Helmi 201944min

In May of 1990, law enforcement raided a warehouse in Douglas, AZ and a private home across the border in Agua Prieta, Mexico. Connecting the two buildings, they found a tunnel, more sophisticated than anything anyone had seen before. The tunnel in Douglas became a kind of prototype for many tunnels afterwards and a hallmark of the Sinaloa Cartel. The Tunnel Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

30 Tammi 201946min

Santa Barbara, California, is a famously beautiful place, but if you look offshore from one of the city's many beaches, you'll see a series of artificial structures that stand out against the natural blue horizon. These oil platforms are at the center of a complicated debate going on right now within the environmental community about the relationship between nature and human infrastructure. Crude Habitat 99% Invisible’s Impact Design coverage is supported by Autodesk. The Autodesk Foundation supports the design and creation of innovative solutions to the world's most pressing social and environmental challenges. Learn more about these efforts on Autodesk's RedShift. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

23 Tammi 201935min