Edison vs. Tesla | Triumph of Illumination | 3

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24:15American History Tellers:In May 1891, Thomas Edison filed suit against his rival George Westinghouse, arguing that Westinghouse's incandescent lighting system infringed on his light bulb patent. The heart of the suit was Edison's uniquely designed filament, which the Federal Patent Office had recognized a decade earlier in 1880. The stakes in the case were high. Without access to Edison's bulb and without a viable alternative, Westinghouse's lighting systems could collapse, and his entire empire risked being crippled by litigation. But Westinghouse refused to be intimidated by Edison's formidable legal team, and countersued, arguing that his AC system, based on Nikola Tesla's designs, was a unique technology.

24:57American History Tellers:In court, Westinghouse leaned on Tesla's patents for his motor and transformers to bolster his claim. But even as this litigation was hoped to save his company, Edison was contending with mounting pressures from within his own ranks. In the summer of 1889, when business was riding high, he had agreed to consolidate his various business divisions and was paid handsomely for it. This deal made him a millionaire, but left him holding just 10 % of his own company's stock, a trade-off that now seemed costly as the legal battle intensified and he found himself needing to act swiftly. But on July 14, 1891, he got some good news.

25:35American History Tellers:A federal judge ruled that Edison had a right to his exclusive incandescent bulb patent on the basis of the specially designed filament he and his assistants manufactured in his New Jersey lab. This meant that competitors like Westinghouse could no longer use similar designs without the risk of being sued. Westinghouse appealed this decision, but in the meantime, he moved quickly to demonstrate his AC technology represented the future of electric power with or without Edison's bulb. That summer, he got his chance when a mining operator in the frontier town of Telluride, Colorado, needed a new electrical system to power his gold mine.

26:11American History Tellers:The operator was facing a dwindling supply of timber for fuel, so he signed up with Westinghouse. Since there was no existing power station, Westinghouse and Tesla were free to design and build one from scratch. They used Tesla's AC power design to generate electricity for the mine from a nearby river, then transferred 3 ,000 volts of electricity through three miles of copper wiring to the mine site. This system was so successful that many residents wanted to sign up for their own access to electricity and were angry when officials informed them that the town of Telluride had already signed a contract with Edison for his DC system.

26:46American History Tellers:Through the winter of 1891, as the town and residents of Telluride battled in court and heeded public hearings over which system to adopt, Westinghouse received reports that the AC system was performing reliably and steadily, even in mountainous terrain. This Telluride installation became the first commercial application of Tesla's design, and it represented a huge success. Now, no one could deny that their AC system was efficient, durable, and cheap. And back in New Jersey, Edison viewed Westinghouse and Tesla's success with disdain and a growing unease about his own position. Then in February 1892, Edison was blindsided.

27:25American History Tellers:His company, Edison General Electric, merged with a competitor to create General Electric, a deal engineered by none other than J.P. Morgan, whose private Manhattan home had once served as a showcase for Edison's early electrical innovations. In the intervening years, though, Morgan had steadily gained influence in Edison's company, and now, as part of the merger, Morgan dropped Edison's name from the new company entirely, effectively pushing the inventor aside. An editorial, an electrical engineer, blamed Edison himself, arguing that his obsessive fight against AC technology had cost him control of his company.

28:00American History Tellers:The editorial declared, Mr. Edison set his face against alternating current as a flint from the first and has sought on every possible occasion to discredit it through the weight in the community of his justly great name, but the tide would not turn back at his frown. And when Edison learned that his name had been dropped from the company that he founded, he was stunned. A friend later recalled that when he broke the news to Edison on a visit to his New Jersey workshop, Edison responded with uncharacteristic resignation, saying that, I've come to the conclusion that I never did know anything about electricity.

28:32American History Tellers:Though, he quickly regained his typical confidence and pledged to reinvent himself entirely, saying, I'm going to do something now so different and so much bigger than anything I've ever done before that people will forget that my name was ever connected with anything electrical. Edison's friend noted this bravado, but also sensed a bitterness in the inventor's voice. His pride had been wounded, he said. I knew then that something had died in Edison's heart. In the spring of 1892, the nation was abuzz with the upcoming 400-year anniversary of the arrival of Christopher Columbus in the Americas.

29:08American History Tellers:Politicians and business leaders were eager to mark the occasion with an event bigger than any the nation had ever seen. Though it was delayed a year by the presidential election, the Chicago World's Fair, formerly known as the World's Columbian Exposition, was set to open in 1893. The fair was designed to showcase the progress and technology of America's growing industry, and nothing would be more prominently featured than electricity. Planners envisioned a temporary but dazzling city carved out of the marshland on the shores of Lake Michigan, ablaze with tens of thousands of electrical lights and packed with hundreds of exhibits.

29:44American History Tellers:And it was no secret that whoever won the contract to power the fair would have an unprecedented stage to demonstrate their dominance in the electrical market.

29:56American History Tellers:Imagine it's May 1892 in Chicago. You're a local city official and the vice president of the planning committee for next year's World Fair. You're in a cramped meeting room on the first floor of the fair's offices where you and your fellow committee members have gathered in private to deliberate on an important matter. Take a deep breath and rise from your seat. Well, gentlemen, we're here to decide what may be the single most important question of the fair. Who will provide the electrical system? So let us select the best bid from the best company. Across the table, a burly committee member who never misses a chance for an argument raises his hand.

30:31American History Tellers:Well, in my mind, there's only one. Westinghouse. Let's not waste our time pretending we're going to consider anyone else. You feel your face flush. Well, it's true that Mr. Westinghouse has submitted a bid, but GE has submitted an equally attractive proposal. I trust I don't need to remind any of you of the prominence and stellar track record of GE, founded by the genius inventor Thomas Edison. Yeah, well, where was Edison? Mr. Westinghouse made the trip all the way from Pittsburgh, and it's here personally. Edison's nowhere to be seen. Presumably, he's locked in his workshop, tinkering with his next gizmo.

31:05American History Tellers:Well, Edison might not be here himself, but GE's top management are. You can't deny that they're the dominant player in the electric market. So dominant that the first bid they submitted was nearly triple the price. Well, since then, they've come down considerably. Which only proves that they were trying to rob us blind in the first place, yeah? Look, those New York suits take us for suckers. We have a responsibility to the people of Chicago to get the best deal. Yes, but from the best company. Westinghouse is the best company. They've installed their AC systems across the country. They've proven their system is efficient, safe, and most importantly, economical.

31:40American History Tellers:You notice several committee members nod their heads approvingly. Gentlemen, please, we're talking about the reputation of the city. This is not a time to pinch pennies. Well, I agree that the reputation of the city is the most important factor in our decision, and precisely why we should choose Westinghouse. As you look around the room, you see that many of your fellow committee members appear to have made up their minds. Well, fine, I leave the decision to all of you. But remember, quality requires investment. When we throw that switch next year at the fair, the nation's eyes will be upon us, and it'll be our heads on the block if anything goes wrong.

32:17American History Tellers:You sit back down and wipe your brow with a handkerchief. You know the decision before the committee is monumental, so you just hope that when the votes are cast, the best company comes out on top.

32:32American History Tellers:After tense negotiations, the Chicago World's Fair Committee awarded the contract to Westinghouse. He had visited Chicago several times in the spring of 1892, cultivating relationships with city officials and endearing himself to the local press. And while Thomas Edison's company had charged$11 per arc light during the fair's construction phase, after their merger, General Electric's bid to illuminate the fair itself came in at triple that rate. The committee was outraged, and ultimately, Westinghouse's lower bid and promises of speedier progress won them over. So in May 1892, George Westinghouse returned to Pittsburgh triumphant, but with an enormous task in front of him.

33:11American History Tellers:In just a year, he would have to design and build an entirely new electrical system capable of reliably powering tens of thousands of lights, all within a tight budget. But he wouldn't have to face the challenge alone. Nikola Tesla would soon join him, eager to seize the opportunity to finally prove on the grandest stage in the world that their AC system was the future of electric power.

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34:44American History Tellers:On August 27, 1892, Nikola Tesla arrived in New York City after a seven-month tour of Europe. In England and France, he had impressed crowds with his AC polyphase motor and demonstrated his latest innovations to rapt audiences. After a lecture at the Royal Institution in London, a prominent physicist declared, Mr. Tesla has the genius of a discoverer. But his most significant achievement had been securing a licensing agreement with a leading electric company in Hungary to use his patents to develop AC power across the continent. Excited by the prospect of introducing this new technology to Europe, Tesla wrote to George Westinghouse about the potential for business overseas.

35:25American History Tellers:But while Westinghouse was intrigued by the news, he had a more immediate priority, fulfilling his ambitious contract to power the Chicago World's Fair. Tesla understood immediately that there could be no expansion overseas without a triumphant demonstration of his AC power at home, so he pledged to go to Pittsburgh himself to work with Westinghouse's engineers, acknowledging it is necessary to bring the AC motor to high perfection before the exhibition, as this is of prime importance. But once in Pittsburgh, Tesla found Westinghouse's electricians struggling to meet the demands of the complex and demanding project, which would require 92 ,000 incandescent bulbs that could light up the fairgrounds for six months.

36:05American History Tellers:In order to achieve what he had promised, Westinghouse's team would have to develop the largest power-generating system ever produced, and with the fair scheduled to open in less than a year, it would have to be completed in record time. One engineer recalled being left in a daze by the sheer enormity of the task. His top manager warned, Westinghouse is asking the impossible and he just won't get it. These men, who had to design and install the generator that would run the fair's lights, foresaw the many obstacles ahead. Up to that point, the average Westinghouse AC plant in a big city could power a maximum of 10 ,000 bulbs.

36:43American History Tellers:What their boss was asking for was 10 times that. And the bulbs themselves remained a problem. Since Edison's patent win in the courts, Westinghouse could no longer use an incandescent bulb similar to Edison's. Although the case was still on appeal, Westinghouse knew his chances were slim. So he had no choice but to get to work designing a new kind of bulb, one that he could use in Chicago. So while Westinghouse and Tesla got to work in Pittsburgh, 7 ,000 laborers were toiling day and night in the swampy marshlands south of Chicago, clearing land and cutting timber to build the structures that would become known as the White City.

37:21American History Tellers:But even as it began to take shape, the courts were about to hand Westinghouse a setback. In December 1892, the U.S. Supreme Court reaffirmed the patent ruling in Edison's favor, denying Westinghouse's appeal. The New York Times declared the matter settled with the headline, Edison Again Successful, noting that the Westinghouse Company had been restrained from making, using, or selling the Edison bulb. But in defeat, Westinghouse's lawyers were curiously nonchalant, because Westinghouse's engineers had made a breakthrough. They had managed to design a replacement bulb for their lighting system, which they called the stopper lamp.

37:59American History Tellers:Instead of Edison's fused glass seal at the base of the bulb, Westinghouse used a two-piece stopper to ensure the bulb was sealed and could contain the glowing filament. It burned just as brightly as Edison's, though for shorter duration. But more importantly, Westinghouse's engineers were confident that the design was different enough to avoid infringing on Edison's patent. And along with a new incandescent bulb, they were on track to fulfill their mission of powering the World's Fair, too. They had managed to build 12 towering generators, each weighing 75 tons. These massive machines were completed in January 1893 and shipped to Chicago just before opening day.

38:38American History Tellers:And on Thursday, June 1, 1st, 1893, the gem of the fair, the Electricity Building, opened. The building's impressive white columns spanned nearly 700 feet in length and was surrounded by a lagoon, a fountain, and a broad esplanade. And after more than a year of constant work and development, Westinghouse and Tesla had succeeded in the enormous task of illuminating the sprawling white city. In August, Tesla visited the fairgrounds and gave a demonstration to a packed and enthusiastic audience. Using a unique type of generator called an oscillator. He generated high-frequency alternating currents, which produced dramatic electrical effects.

39:16American History Tellers:He made objects spin and whirl, fired enormous sparks into the air, and lit up glass tubes and bulbs with no wires attached. Then, in a stunning display, he ran electricity through his own body, causing faint glimmers of electrical light to shimmer around him. The crowd was enthralled with his manipulation of electricity. But for many visitors, the greater wonder was the possibility that the power on display might be capable of changing their lives.

39:47American History Tellers:Imagine it's a hot summer day in 1893. You're a corn and grain farmer with a small plot of land about 20 miles south of Chicago. And today, you and your neighbor have made the journey north to marvel at the inventions on display at the World's Fair. You couldn't wait to see what all the excitement was about. And your first stop was the electrical building. As you and your friends step out of a demonstration given by the famous inventor Nikola Tesla, you can see your neighbor's eyes are wide with amazement. I've never seen anything like that in my life. Did you see the bolts of light that flew around him?

40:19American History Tellers:I sure did. I mean, how did he do that? It's like conjuring magic. It was impressive for sure, but it's just electricity, not magic. Mr. Tesla is a scientist, not some wizard. Yeah, but you've got to admit, it was a wild sight. As you continue to walk through the exhibit grounds, your eye is drawn to a large generator, roped off from the crowd and manned by a few workers. You step closer, gazing at a system of copper wires and switchboards that display the electrical current running up a staircase and overhead to power a string of brilliant lights. Now, now that's what I call impressive. Look at that.

40:54American History Tellers:All that power waiting to be harnessed. Well, not that it does us any good. It's just for the fair, at best, rich folk. No, I don't agree. You don't see the potential? Look, how many hours a day do you work on your farm? Your friend gives you a smirk. Well, you know the answer to that, as long as there's daylight I'm working in the fields. Exactly. You and me both. And we're barely making ends meet, right? From dawn to dusk. But think about it. With technology like this, we could light up our homes. And the barns. And the sheds, too. We'd be more productive. Well, I don't want to work day and night.

41:28American History Tellers:Well, with more time, we could raise more cattle. plow bigger fields. We'd have higher yields. If we were successful, we could even hire field hands, so it wouldn't be just us. How about our kids? They barely managed to do their schoolwork in the evening. They can't see properly by the dim glow of an oil lamp. Well, my daughter is having trouble with her reading, that's for sure. Yeah, so now imagine if you had electric light in your home. She'd have a chance for something better. You watch as your friend's eyes begin to brighten and marvel at the prospect. You stare up at the generator, daring to dream.

42:02American History Tellers:So far, it's felt like modernity and electricity is something for the wealthy, reserved for big cities in the East. But for the first time, this wondrous invention feels like it might be available to you, too.

42:17American History Tellers:During the summer of 1893, hundreds of thousands of ordinary Americans attended the Chicago World's fare. And while many were impressed with the futuristic gadgets and machines that lit up the grounds, others saw the revolutionary potential for electricity to transform their lives in practical terms. And the demonstration of the fare's powerful and dynamic AC system made the prospect of the technology easy to grasp. With their audacious demonstration of electrical power, Westinghouse and Tesla were the undisputed stars of the fare. But they weren't alone in competing for the crowd's attention.

42:51American History Tellers:General Electric had secured its own prominent place at the exposition as well. In the electrical building, GE presented an elaborate display of Edison's most successful inventions, designed to burnish his reputation as the era's preeminent inventor. And the crowds were dazzled by Edison's newest invention, a moving picture camera and projector, which could capture and replay visual images. But it would prove to be one of Edison's last great appearances in the electrical arena. Westinghouse and Tesla's triumph at the World's Fair had successfully demonstrated that the future belonged to alternating current, and Edison's direct current system would soon be rendered largely obsolete.

43:30American History Tellers:So after the World's Fair, Edison turned his relentless energy elsewhere. He helped to launch the moving picture industry and spent years further refining the phonograph. He also spent millions of dollars of his own money on failed pursuits, such as a giant rock-crushing machine for mining and a search for a new material to make rubber. His bold promise to invent something bigger than the electric light never panned out. He would forever be known as the inventor of the light bulb and associate it with its incandescent glow. Meanwhile, the system he fought so hard to defeat would soon become the foundation of modern life.

44:05American History Tellers:The same year that Westinghouse and Tesla won the contract for the Chicago World's Fair, They also secured the right to develop the nation's biggest hydroelectric project at Niagara Falls, cementing their dominance of the electrical market. Four years later, on November 15, 1896, Tesla threw the switch that brought electricity to Buffalo, New York, making it the first city in America to have widespread electrical power. Tesla spent the final decades of his life consumed with grander and more elusive ambitions, becoming obsessed with radio frequencies and even paranormal communication. But he never lost his fascination with electricity, continuing to stage daring demonstrations of artificial lightning and magnetic fields in his laboratories.

44:49American History Tellers:And despite his bitter rivalry with Edison, he reflected on their greatest achievement, harnessing the power of electricity when he said, We are whirling through endless space with an inconceivable speed. All around us, everything is spinning, everything is moving, everywhere is energy. The mere contemplation of those magnificent possibilities expands our minds, strengthens our hopes, and fills our hearts with supreme delight. From Audible Originals, this is Episode 3 of our three-part series on Edison vs. Tesla for American History Tellers. In the next episode, I'll speak with Dr. Paul Israel, the director and general editor of the Thomas A.

45:30American History Tellers:Edison Papers at Rutgers University, and author of Edison, A Life of Invention. We'll discuss the journey Edison took to become the most famous inventor of his time, and how he assembled a team that made his biggest ideas possible. Follow American History Tellers on the Audible app, or wherever you get your podcasts. You can listen to all episodes of American History Tellers ad-free by joining Audible. And to find out more about me and my other projects, including my live stage show coming to a theater near you, go to notthatlindsaygram.com. That's notthatlindsaygram.com. If you'd like to learn more, we recommend Empires of Light by Jill Jones and Edison and the Electric Chair by Mark Essig.

46:15American History Tellers:American History Tellers is hosted, edited, and produced by me, Lindsay Graham, for Airship. This episode is written by Dorian Marina. Senior Producers Alita Rosansky and Andy Beckerman. Managing Producer Desi Blaylock. Audio Editing by Mohamed Shazib. Music by Thrum. Sound Design by Molly Bach. Executive Producer for Audible Jenny Lauer Beckman. Head of Creative Development at Audible Kate Navin. Head of Audible Originals North America Marshall Louis. Chief Content Officer Rachel Kiazza. Copyright 2026 by Audible Originals LLC. Sound Recording Copyright 2026 by Audible Originals LLC.

46:55Thank you.