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(752)

Accidental Music of Imperfect Escalators

Accidental Music of Imperfect Escalators

“There’s a secret jazz seeping from Washington’s aging Metro escalators – those anemic metal walkways that fill our transit system…they honk and bleat and squawk…why are you still wearing those earbuds?” -Chris Richards, “Move along with the soundtrack of Metro’s … Continue reading → 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 Des 20117min

Recognizably Anonymous

Recognizably Anonymous

Anonymous is not group. It is not an organization. Rob Walker describes Anonymous as a “loosely affiliated and ever-changing band of individuals who… have been variously described as hackers, hacktivists, free-expression zealots, Internet troublemakers, and assorted combinations thereof.” But when … Continue reading → 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 Des 201111min

The Human-Human Interface

The Human-Human Interface

Paola Antonelli is the Senior Curator in the Department of Architecture and Design at the Museum of Modern Art. Her most recent blockbuster show, Talk to Me, explored the communication between people and objects: from chairs that talk to subway … Continue reading → 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.

3 Des 20115min

Billy Possum

Billy Possum

It’s totally unfair. Hydrox cookies came out four years before the introduction of Oreos, but Hydrox could never shake the image that it was a cheap knock-off, an also-ran. As a consumer product, it’s completely out of your hands if … Continue reading → 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 Nov 201112min

The Biography of 100,000 Square Feet

The Biography of 100,000 Square Feet

United Nations Plaza sits in the center of San Francisco. Most people consider it a complete failure as a public space. Its central feature, at the entrance of the plaza, is a unique fountain that was designed by Lawrence Halprin … Continue reading → 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.

18 Nov 201131min

Darth Vader Family Courthouse

Darth Vader Family Courthouse

It’s hard to imagine a place where more desperate and depressing drama unfolds on a daily basis than a family courthouse- custody battles, abuse, divorce- and if you were to design a place to reflect and amplify that misery, not … Continue reading → 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.

28 Okt 20118min

Sound of Sport

Sound of Sport

If Dennis Baxter and Bill Whiston are doing their job right, you probably don’t notice that they’re doing their job. But they are so good at doing their job, that you probably don’t even know that their job exists at … Continue reading → 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.

13 Okt 20115min

The Steering Wheel

The Steering Wheel

If I asked you to close your eyes and mimic the action of using one of the simple human interfaces of everyday life, you could probably do it. Without having a button to push, you could close your eyes and … Continue reading → 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.

29 Sep 20117min

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