The Batman and the Bridge Builder
99% Invisible23 Feb 2021

The Batman and the Bridge Builder

Mark Bloschock is an engineer from Texas, and in the late 1970s he got a job with the Texas Department of Transportation renovating the Congress Avenue Bridge. The bridge was a simple concrete arch bridge that spans Lady Bird Lake in downtown Austin. It needed to be rebuilt with more contemporary beams called “box beams.” The box beams sit below the road’s surface, and they needed to be spaced a certain distance apart. Bloschock and the other engineers decided that the gap should be somewhere between ¾ of an inch and an inch and a half, which didn’t seem like a particularly meaningful decision… until the bats moved in.

A tale of bats and bridges and how the built environment and the natural environment don’t need to be at odds with one another.

The Batman and the Bridge Builder

Plus, we talk with Simon Doble, CEO of Solar Buddy. Light access (both day and night) is a basic need many people take for granted. SolarBuddy is an Australian charity uniting a global community with a big dream to gift six million solar lights to children living in energy poverty by 2030, to help them to study after dusk and improve their education outcomes.

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, which tells stories about the future of making across architecture, engineering, infrastructure and manufacturing.

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Episoder(761)

The New Jungle

The New Jungle

In a Colorado meatpacking town, refugees fleeing persecution find themselves in some of the most dangerous jobs in America.This episode was produced in partnership with the Food & Environment Reporting Network, an independent, nonprofit news organization.The New Jungle 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. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

23 Sep 35min

Replaceable You

Replaceable You

Mary Roach dives into the strange, funny, and unsettling world of designing new body parts, from pig hearts to prosthetic feet, revealing just how messy replacing ourselves can be.Replaceable You 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. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

16 Sep 34min

Revisiting The 99% Invisible City

Revisiting The 99% Invisible City

We’re excited to celebrate the 5th anniversary of The 99% Invisible City, a NYT Bestseller by Roman Mars and Kurt Kohlstedt, with a guided audio tour of beautiful downtown Oakland, California. Join us as we explore different everyday designs, using examples from the built environment around our old offices as jumping-off points.And if you don't already have one: be sure to get your print or audio copy of the book at 99pi.org/book.Exploring The 99% Invisible City 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. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

9 Sep 41min

The 99PI Anniversary Special: 15 for 15

The 99PI Anniversary Special: 15 for 15

For 99PI’s 15th anniversary, Roman sits in the hot seat to answer 15 eclectic questions, touching on everything from his dream merch to the one object he's always wanted to cover on the show.Plus, a behind-the-scenes look at how the show gets made.The 99PI Anniversary Special: 15 for 15 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. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

2 Sep 50min

Ambassador Bridge

Ambassador Bridge

A billionaire family’s private bridge empire shaped Detroit for decades, sparking battles over power, neighborhoods, and the future of an international crossing.Ambassador Bridge 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. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

26 Aug 40min

All About That Bass

All About That Bass

Vintage music barely had any bass. Today’s hits are all about the low end. What changed? An episode this week from our friends at Twenty Thousand Hertz, featuring hip hop legend DJ Jazzy Jeff and Roland's Paul McCabe.All About That Bass 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. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

19 Aug 25min

Sister Aimee and the Birth of the Megachurch

Sister Aimee and the Birth of the Megachurch

Aimee Semple McPherson built America’s first megachurch, blended showbiz with salvation, and vanished in a scandal that captivated the nation.Sister Aimee and the Birth of the Megachurch 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. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

12 Aug 36min

Weeding is Fundamental Revisited

Weeding is Fundamental Revisited

Libraries get rid of books all the time. There are so many new books coming in every day and only a finite amount of library space. The practice of freeing up library space is called weeding. When the main branch of the San Francisco Public Library was damaged by an earthquake 1989, the argument over which books need to be weeded, and how they were chosen for removal, reached fever pitch.This episode originally aired on May 14, 2019.Weeding is Fundamental 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. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

5 Aug 38min

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