Sponge, Steal & Ship - Edison’s Bright Idea
Thomas Edison is one of the most famous inventors of all time.
Edison wracked up 1,093 patents across ideas including the microphone, the telephone receiver, the universal stock ticker, the phonograph and the storage battery.
And of all his inventions, his most famous is the electric light bulb.
Except he didn’t invent it.
The Lightbulb Moment
In the autumn of 1878 Edison travelled to Connecticut to see a new arc light system developed by William Wallace and Moses Farmer.
Their arc light passed an electric current across a small gap between two carbon rods to produce an intensely bright light.
Edison was inspired.
An article in the New York Sun described the moment: "Edison was enraptured. He fairly gloated over it. . . . He ran from the instruments to the lights, and from the lights back to the instrument. He sprawled over a table with the simplicity of a child, and made all kinds of calculations."
Less than a week later Edison was back in the same paper declaring that the electric system he envisioned would soon illuminate Manhattan slashing the cost of lighting by 95%.
“Great Artists Steal”
"Good artists copy, great artists steal" - Pablo Picasso (attributed)
Backing up his dramatic proclamation was going to take some seriously hard graft.
Wallace and Farmer’s arc light was not a practical solution.
It required too much power, produced so much heat, and burned out quickly, which is great for welding slabs of metal together (which the technology is used for today), but not at all suitable for lighting people’s homes.
Luckily Edison had 75 years of other people's experience to learn from.
Sir Humphry Davy created the first electric arc light in 1802 (just after spending many years enthusiastically testing the effects of laughing gas on himself).
In 1840, British scientist Warren de la Rue enclosed a platinum filament in a vacuum tube, creating the first lightbulb and extending the life of the light.
In the U.S., Moses Farmer created similar bulbs in 1859, and Edison was able to inspect them while acquiring the patents.
In 1874, Canadian inventors Henry Woodward and Mathew Evans patented a lightbulb of carbon rods in a nitrogen-filled cylinder, but they failed to raise enough money to follow-though, and Edison also bought their patents.
British physicist Joseph Swan, his closest competitor, had been experimenting for decades and in early 1879 he demonstrated a working carbon filament in a vacuum bulb.
Edison rapidly tested their discoveries, trying platinum filaments before discarding that material as too expensive and rare for the mass production he envisioned.
So he switched to testing carbon: "Before I got through," he recalled, "I tested no fewer than 6,000 vegetable growths, and ransacked the world for the most suitable filament material."
Finally he found a bamboo filament that was inexpensive, easy to find and could burn for up to 1,200 hours.
Just months after Swan’s demonstration, Edison presented his working prototype with a huge press fanfare in October 1879.
Finally, with the title of his January 1880 patent application "Improvement in Electric Lamps", he made it clear he was optimising existing technology rather than inventing it from scratch.
And as Edison later admitted with characteristic candour: “Everyone steals in commerce and industry. I've stolen a lot, myself. But I know how to steal! They don't know how to steal!”
“Real Artists Ship”
“Real artists ship” - Steve Jobs
The significant difference between Edison and his competitors was that while they were concentrating on the bulb itself, Edison saw that the bulb was just one part of a wider system that was needed to make electric lighting a commercial reality.
Just one month after he was first inspired to start working on electric lighting the Edison Electric Light Company was incorporated.
And convinced by Edison’s amazing early claims a host of leading financiers and banks backed his efforts with $130,000 (approximately $3 million today).
It meant that Edison could fund a whole team of people to work on the problem in his lab at Menlo Park which he called the “Invention Factory”.
It was the world’s first industrial research and development (R&D) laboratory, defining the process of modern invention itself.
Its open floor plan, informal environment, and lack of a time clock allowed creativity and communication to flourish across a team of 25 scientists, machinists and designers transforming the solitary and intermittent process of invention into a system that could consistently deliver advancements.
Across a four year period they initiated a whole system of innovations in addition to the bulbs that made electric lighting practical:
They produced a more efficient electric generator, leading one of his employees to write, "We have now the best generator of electricity ever made and this in itself will make a business."
They created electricity meters to charge for the service, fuses and switches to control it, and underground conductors to deliver it.
They considered the problems of mass-production designing tools to produce the filaments and more effective vacuum pump designs for the bulbs.
They created a small lightbulb factory in Menlo Park which produced experimental runs of bulbs by September 1880 and moved into full production in the spring of 1881.
In March that year three more specialised factories were started up in New York to manufacture the generators, the underground conductors and the smaller elements of the system.
In May 1880, the first product shipped when on a … ship, when 115 Edison lamps were installed on the steamship Columbia to light its staterooms and saloons.
Commercial and residential installations quickly followed across New York and over the next two years there were more than 150 installations of over 30,000 lights, supported by a new and bigger factory that opened in September 1882.
A decade later, the company merged to become General Electric, establishing one of the dominant industrial conglomerates of the twentieth century.
The Innovation Challenge
Edison took the lightbulb idea and made it a commercial reality.
If you look at the phases of the innovation challenge you can see what he did differently.
Phase 1: Invention
The invention stage was already well underway when he started.
The idea
Problem validation
Prototype
21 separate people had already demonstrated some form of electric light and people recognised there was value there.
What Edison was incredibly effective at compared to the likes of Wallace, Woodward, Ellis and Swan, was the innovation stage.
Phase 2: Innovation
Starting with his immediate funding drive, through his use of and R&D laboratory, to his factory building he actively address every stage of innovation:
Funding - $130,000 early investment in the Edison Electric Light Company.
Repeatable solution - Testing 6,000 materials to find the best and most reliable option.
Supply chain and manufacturing - Building three specialist factories with specialised tooling.
Regulation and compliance - He fought hard to establish his direct current system as the industry standard (which ultimately was the wrong choice compared to alternating current).
Building a team/organisation - The Menlo Park “Invention Factory”
Commercial strategy - Developing an electricity meter to charge for supply, in addition to lightbulb and generator sales.
Finding customers - Drumming up huge levels of publicity through showcase events and press coverage.
Timing and market readiness - Gas stocks plummeted the day of Edison’s public demonstration.
Customer adoption - 150 installations of 30,000 Edison lamps in 2 years.
Scaling operations - Launching an even larger factory in 1882.
Competitors - Through his own patents and others he bought he aggressively defended his new market.
Phase 3: Exploitation
Long-term evolution - Edison’s solution was inherited and exploited to its maximum for over a century by General Electric.
It’s why Edison and not any of the other inventors and competitors is now remembered as the “inventor” of the electric lightbulb.
Edison is particularly notable because successfully navigated this challenge multiple times launching 13 major companies this way during his lifetime.
Sponginess
At the core of Edison's success was what researchers now call ‘absorptive capacity’ - the ability to seek valuable new information, fully take it in, and then apply it commercially.
It’s also known as ‘sponginess.’
Which as coincidence would have it is how Edison describes his own abilities and success:
"I am more of a sponge than an inventor. I absorb ideas from every source. I take half-matured schemes for mechanical development and make them practical. I am a sort of a middleman between the long-haired and impractical inventor and the hard-headed business man who measures all things in terms of dollars and cents. My principal business is giving commercial value to the brilliant but misdirected ideas of others."
Edison was a sponge, and he implanted sponginess into his businesses by creating the R&D facility at Menlo Park.
Sponginess is something both people and organisations can have and develop:
You (or the organisation) have to actively engage in gathering as much high-quality information as possible.
The better you process and understand this knowledge the more you’re able to retrieve it later.
As a result of this process you’ll be far better at spotting and exploiting any potential opportunities.
Let’s be more spongy
"There's a better way to do it - Find it." - Thomas Edison
“Invention’s Big Triumph: An Electric Machine That Will Transmit Power by Wire”, New York Sun (Sep 10, 1878)
“Edison’s Newest Marvel: Sending Cheap Light, Heat, and Power by Electricity”, New York Sun (Sep 16, 1878)
"A Night with Edison", New York Herald (Dec 31, 1879)
“Thomas A. Edison Papers”, Rutgers New Brunswick, School of Arts & Sciences (2026)
“Menlo Park: The World's First R&D Lab”, Time Magazine (2010)
Grant, A. “Hidden Potential: The Science of Achieving Greater Things”, WH Allen (2023)
Braude, J. M.,“The Treasury Of Stories For Every Speaking And Writing Occasion”, Prentice-Hall (1959)
Cohen, W. M., Leventhal, D. A., “Absorptive capacity: A new perspective on learning and innovation”, Administrative Science Quarterly (1997)
