If you thought the patent wars between Apple and Samsung over smartphone design are messy and adversarial, Empires of Light documents a series of battles far more brutal, and with consequences arguably more epic. Unlike Apple and Samsung, this wasn't just about the rights to manufacture products that are technically identical to each other. This was a battle over rival technologies, personalities and competing visions of the future, fought at a time when most of the refined legal weaponry available to companies today were non-existent.
The initial chapters make for slow and relatively dull reading while Jonnes introduces us to the cast of characters in this battle. We are introduced to Edison, Tesla and Westinghouse. All three men would amass fortunes with their inventions and create wealth all around, but importantly, they were self-made men. This was in an age of inherited fortunes in an economy that was just beginning to mint industrial millionaires, starting with the railroad industry. Jonnes does a reasonable job portraying and describing the temperament of these people, but it feels incomplete. Tesla's education is left as somewhat of a mystery. After all, Tesla displayed a deep understanding of electromagnetism that seemed to have far outstripped Edison. Why was that? And while Westinghouse is described as a mechanical genius of sorts, there are few anecdotes or testimonies to bear out the hagiographic portrayal of his smarts. Jonnes also delves briefly into the history of electrical discoveries in these early parts of the book, which is pretty poorly done. Save for her description of the Leyden jar and Benjamin Franklin's experiments, I found myself at a loss trying to imagine and understand exactly how these experiments worked. Her portrayal of the battles between Volta and Galvani are similarly brushed over leaving the reader at a loss as to *why* they disagreed on the nature of currents. But this isn't a history of electricity per se, so perhaps glossing over these details is justifiable. Her treatment of Faraday's work is beautiful, and starts to set the tone for the feverish pace of innovation in the electricity industry dominated by the big three.
Jonnes charts the rise of Edison's eminence in the electricity industry nicely, providing thrilling accounts of the race to finish his Pearl Street DC generating station in New York, and the numerous challenges they faced. Perhaps most vivid is her description of Edison's team's furious experimentation with the light bulb, which were the basis of the key patents that would be Edison's chief weapons against Westinghouse Electric. Edison's championing of DC is famous, but I wish the author had gone into more detail as to why Edison opposed AC as much. It's clear that Edison's understanding of AC was flawed, but why it was so flawed rarely gets touched upon throughout the book. Similarly, the roots of Tesla's genius is wholly unclear and undocumented by the author, as is the environment of Tesla's laboratory where he seemed to be thinking far into the future. The biggest let-down perhaps is a clear technical explanation as to why Tesla's polyphase AC circuits were superior in design to DC. Or why AC provided long-distance transmission advantages over DC. To me, the lack of technical detail was a big letdown. These men were interesting personalities in business no doubt, but they were known as innovators and any portrait of them is incomplete without some technical appreciation of their inventions.
Once the book approaches the start of the "War of the Electric Currents", the book shifts gear and becomes quite unrecognizable from the slow pace of the first segments of the book. Jonnes' blow-by-blow portrayal of the corporate battles between Edison's DC systems and Westinghouse Electric's AC systems are giddying. Jonnes keeps her list of characters in this battle short, and does an amazing job of keeping the reader informed of the chronology of unfolding events. I've seen few authors manage to do as good a job at this as Jonnes does. The first chapter documenting these events introduces colorful characters such as Harold Brown, whose inhuman experiments on killing dogs with AC currents to demonstrate their danger is a shock introduction and foreshadowing of how ugly future events in this battle would get.
The descriptions of the corporate battles Edison and Westinghouse waged is the meaty portion of the book. The acrimony and the stakes of the battle are clearly described, as is every battlefield on which it was fought. There were the light bulb patent battles in court, where Edison wanted to deliver the killing blow to all his competitors who had been manufacturing designs similar to his pioneering effort. There were the PR battles, where Edison launched wave after wave of attack, be it in helping establish death by the electric chair (using AC), in providing the notorious Harold Brown with laboratory space and money to carry out his cruel experiments, or in paying for caustic articles targetting Westinghouse in the papers. There were business battles too, with General Electric, formed from a forced merging of all of Edison's electricity companies, repeatedly trying to take over Westinghouse's firm. There was corporate espionage, where GE evidently stole Westinghouse's designs to build the distribution and generation system at Niagara Falls. And finally, there is the panic of 1893 where both rival firms fought for their own financial survival while still trading blows in court. I can't think of any modern day corporate battle that went on this long (seven years), and on this many fronts. Jonnes' writing pretty much puts you in the room with these people, and is quite an emotional rollercoaster with the changing fortunes of its chief players. It's a challenge to put down the book when you hit these parts. To me, the best writing in the book was the chapter detailing the circumstances around the first execution by the electric chair. It left me shaken.
Jonnes' breezy account of the corporate battles notwithstanding, there are quite a few details missing. What was happening in Europe during these times? Jonnes writes, for instance, that AC had been successfully transmitted 13 miles in Paris in 1893. Who did this experiment? And more importantly, what was the state of electrical advancement in Europe in general? The transformer patents that Westinghouse purchased for his company were designed and developed in Europe. Who were these people and what was their story? Similarly with the induction motor. Tesla did come up with the initial idea and design, but it was Westinghouse's huge investments that were needed to make a workable motor and generator based on his designs.This aspect of the development of AC is only mentioned in passing. There were other motor designs as well, but they do not find mention at all. Again, this robs the reader of a sense of appreciation of why Tesla's designs were superior, or why exactly Edison's light bulbs were so revolutionary.
Finally, I think the whole story serves as an inspiring story of innovation. All three men barely slept when they worked on their designs. Jonnes celebrates the culture of American innovation (albeit at the cost of forgetting about the rest of the world). These were three men who believed that no innovation was complete until it could be cheaply manufactured and sold in the market. This is a sentiment that would resurface in Bell Labs many years later, where the firm almost single-handedly conceived, designed, built and helped mass manufacture the transistor. The story of electricity was also a story of innovation styles - Edison believed in trying every combination of every material to get his lightbulb working, while Tesla genuinely tried to understand nature and believed in theory and calculations before setting off to build. Tesla's innovations and working style aren't mentioned in the book, which is a huge takeaway from the book, while Edison gets an undue amount of attention.
In the end, this is a racy story of the corporate battles that electrically got us to where we are today. But if you want a more technical and perhaps less hagiographic account of the field of electricity, this isn't the book you are looking for.