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Roman Mars · Arts & Culture

99% Invisible

Design is everywhere in our lives, perhaps most importantly in the places where we've just stopped noticing. 99% Invisible is a weekly exploration of the process and power of design and architecture. From award winning producer Roman Mars. Learn more at 99percentinvisible.org.

Episodes

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100 Objects #21: Window from the House of D

23 Oct 2026
37m
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The Women's House of Detention in Greenwich Village functioned as an unlikely incubator for the modern gay rights movement. Originally designed to rehabilitate "unfeminine" women through incarceration, the prison’s architecture—specifically its large, openable windows—enabled constant communication between inmates and ...

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Audio Guide of the Imperfections of a Perfect Masterpiece

21 Oct 2026
29m
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The Guggenheim Museum stands as a testament to Frank Lloyd Wright’s architectural genius, yet its true character emerges through the practical adaptations and structural interventions required to maintain the building over decades. Originally envisioned as a top-down experience, the museum now accommodates bottom-up na...

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Tony Hawk's Real-Life Willy Wonka

20 Oct 2026
52m
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Experience designer N.D. Austin crafts immersive, real-world scenarios that prioritize personal transformation and generosity over commercial interests. His approach stems from a childhood spent within a doomsday cult, where he learned the mechanics of world-building and the power of ritual. By designing finite, meanin...

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The Problem With Football Helmets

13 Oct 2026
43m
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Football helmets serve as a flashpoint in the ongoing debate over the safety and ethics of America’s most popular sport. While early leather designs offered minimal protection, the transition to hard plastic helmets in the mid-20th century reduced skull fractures but inadvertently increased the game's violence by turni...

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(Not Just) Another Brick in the Wall

06 Oct 2026
28m
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Chicago’s architectural identity is fundamentally rooted in its unique brick history, shaped by post-fire reconstruction and abundant local clay deposits. The Monadnock building stands as a testament to this era, representing the pinnacle of structural masonry before steel frames rendered brick primarily decorative. Ch...

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100 Objects #20: AA Sobriety Chip

02 Oct 2026
52m
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The Alcoholics Anonymous sobriety chip serves as a lens into the complex history of American temperance, morality, and the exclusion of marginalized groups. Originally emerging from the failed political experiment of Prohibition, the chip symbolizes a shift from state-mandated morality to individual, faith-based recove...

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Tootle of a Devilish Song

29 Sep 2026
32m
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Yodeling originated as a functional vocal technique for Alpine cattle herders to communicate across vast distances before evolving into a performance spectacle for 18th-century tourists. This distinctive register flip crossed the Atlantic in the 19th century, where it integrated into the American musical landscape. Jim...

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100 Objects #19: Western Electric 500 Series

25 Sep 2026
38m
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The Western Electric 500 Series telephone represents a pinnacle of consumer product design, serving as a frictionless interface that defined American communication for decades. Designed by Henry Dreyfuss, the device prioritized durability and repairability, largely because AT&T’s monopoly model relied on renting rather...

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The Rocky Statue

22 Sep 2026
32m
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The Rocky Balboa statue in Philadelphia represents a decades-long struggle between elitist cultural gatekeepers and the working-class public. Originally commissioned as a movie prop for Rocky III, the bronze sculpture faced intense opposition from art patrons who dismissed it as a commercial gimmick unworthy of the Phi...

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100 Objects #18: Hair Relaxer

18 Sep 2026
35m
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Chemical hair relaxers represent a complex intersection of Black economic empowerment, assimilation, and significant health risks. Originally adopted by enslaved individuals as a survival strategy to mimic European beauty standards, the practice evolved into a lucrative industry pioneered by figures like Madam C.J. Wal...

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Doves Type

15 Sep 2026
37m
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The friendship between Thomas Cobden-Sanderson and Emery Walker, once united by a shared passion for socialist politics and the "book beautiful," ended in a bitter, decade-long feud over the Doves Press. Driven by possessiveness, Cobden-Sanderson spent five months secretly dumping 2,600 pounds of their custom-designed ...

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100 Objects #17: M43 Field Jacket

11 Sep 2026
41m
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The M43 Army Field Jacket represents a pivotal shift in military design, moving from aesthetic imitation of foreign powers to a scientific, user-centered approach. Host Roman Mars and guest Avery Trufelman, host of Articles of Interest, detail how professor George Dorio utilized rigorous laboratory testing—including th...

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Kobuk the Destroyer

08 Sep 2026
38m
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Test engineering serves as the hidden foundation for product safety, balancing durability, usability, and risk mitigation. Rigorous methods like limit testing—exemplified by using grizzly bears to certify bear-resistant canisters or firing chickens into jet engines—ensure products withstand extreme real-world condition...

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100 Objects #16: Wheel of Fortune Dalmatian

04 Sep 2026
46m
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The ceramic Dalmatian, once a ubiquitous consolation prize on Wheel of Fortune, serves as a lens for understanding the shifting American dream and the evolution of television game shows. Initially, quiz shows promoted a meritocratic ideal where intelligence yielded life-changing rewards, but the 1950s rigging scandals ...

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1-800-PODCAST

01 Sep 2026
43m
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The 800 number, or INWATS, fundamentally reshaped American retail by decoupling shopping from time and geography. Originally introduced by AT&T in the 1960s, this technology struggled until the proliferation of credit cards enabled seamless impulse purchasing. Omaha, Nebraska, emerged as the central hub for this toll-f...

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100 Objects #15: Bundy Clock

28 Aug 2026
37m
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The invention of the Bundy Clock in 1888 transformed workplace timekeeping from informal, trust-based systems into a rigid mechanism of surveillance. By replacing human oversight with mechanical stamps, the device allowed factory owners to track employee punctuality with unprecedented precision, effectively categorizin...

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Spolia

25 Aug 2026
28m
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The practice of "spolia"—the repurposing of materials from older structures into new ones—serves as both a political tool and a sustainable necessity. Historically, Roman emperors like Constantine utilized salvaged marble and sculpted panels from earlier monuments to legitimize their rule, effectively weaving past auth...

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100 Objects #14: Basketball Sleeve

21 Aug 2026
41m
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The NBA compression sleeve originated not as a fashion choice, but as a medical necessity for Allen Iverson, who wore it to protect his elbow bursitis during the 2000-2001 season. Iverson’s refusal to conform to the league’s "respectability politics"—exemplified by his signature cornrows, tattoos, and baggy clothing—ch...

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The Bone Wars

18 Aug 2026
44m
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The "Bone Wars" represents a period of intense, often unethical competition between 19th-century paleontologists Edward Drinker Cope and Othniel Charles Marsh. Driven by personal ambition and a desire for scientific dominance, their rivalry led to the rapid, often sloppy discovery and naming of over 130 dinosaur specie...

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100 Objects #13: The Sand Letters

14 Aug 2026
48m
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Chester A. Arthur’s evolution from a corrupt machine politician to a pivotal reformer hinges on 23 letters from Julia Sand, an obscure, homebound woman who challenged him to transcend his reputation. Initially a product of the "spoils system"—a patronage-heavy political network—Arthur ascended to the presidency followi...

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