Posts Tagged ‘invention’
“Great minds think alike”*…

Brian Potter on the (perhaps surprising) frequency with which “heroic” inventors are in fact better understood as the winners of close races…
When Alexander Graham Bell filed a patent for the telephone on February 14th, 1876, he beat competing telephone developer Elisha Gray to the patent office by just a few hours. The resulting legal dispute between Bell Telephone and Western Union (which owned the rights to Gray’s invention) would consume millions of dollars before being resolved in Bell’s favor in 1879.
Such cases of multiple invention are common, and some of the most famous and important modern inventions were invented in parallel. Both Thomas Edison and Joseph Swan patented incandescent lightbulbs in 1880. Jack Kilby and Robert Noyce patented integrated circuits in 1959. Hans von Ohain and Frank Whittle independently invented the jet engine in the 1930s. In a 1922 paper, William Ogburn and Dorothy Thomas documented 150 cases of multiple discovery in science and technology. Robert Merton found 261 examples in 1961, and observed that the phenomenon of multiple discovery was itself a multiple discovery, having been described over and over again since at least the early 19th century.
But exactly how common is multiple invention? The frequency of examples suggests that it can’t be particularly rare, but that doesn’t tell us the rate at which it occurs. In “How Common is Independent Discovery?,” Matt Clancy catalogues several attempts to estimate the frequency of multiple discovery, and tentatively comes up with a frequency of around 2-3% for simultaneous scientific discoveries, and perhaps an 8% chance that a given invention will be reinvented in the next decade. But the evidence for inventions is somewhat inconsistent, and varies greatly between studies. Clancy estimates a reinvention rate of around 8% per decade, but another study he found that looked at patent interference lawsuits between 1998 and 2014 suggests an independent invention rate of only around 0.02% per year.
The frequency of multiple invention is a useful thing to know, because it can give us clues about the nature of technological progress. A very low rate of multiple invention suggests that progress might be driven by a small number of “genius” inventors (what we might call the Great Man Theory of technological progress), and that it might be highly historically contingent (if you re-rolled the dice of history, maybe you get a totally new set of inventions and a different technological palette). A high rate of multiple invention suggests that progress is more a function of broad historical forces (that inventions appear when the conditions are right), and that progress is less contingent (if you re-rolled the dice of history, you’d get a similar progression of inventions). And if the rate of multiple invention is changing over time, perhaps the nature of technological progress is changing as well…
[Potter reviews the history and concludes that “multiple invention was extremely common”…]
… My main takeaway is that the ideas behind inventions are often in some sense “obvious,” or at least not so surprising or unexpected that many people won’t think of them. In some cases, this is probably because once some new possibility comes along, lots of people think of similar things that could be done with it. Once the properties of electricity began to be understood, many people came up with the idea of using it to send signals (telephone, telegraph), or to create motion (engines and generators), or to generate light (arc lamps, incandescent lights). Once the steam engine came along, lots of people had the idea to use it to power various types of vehicles.
In other cases, multiple invention probably occurs because important problems will attract many people trying to solve them. Steel corrosion was a large problem inspiring many folks to look for ways to create a steel that didn’t rust, or notice the potential value if they stumbled across such a material. Lamps causing mine fires were a major problem, inspiring many people to come up with ideas for safety lamps. The smoke produced by gunpowder was a major problem, inspiring many efforts to develop smokeless powders. And because would-be inventors will all draw from the same pool of available technologies, materials, and capabilities when coming up with a solution, there will be a large degree of convergence in the solutions they come up with…
Fascinating: “How Common is Multiple Invention?” from @const-physics.blogsky.venki.dev.
* common idiom
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As we reconsider credit, we might recall that it was on this date in 1661 that Isaac Newton— a key figure in the Scientific Revolution and the Enlightenment that followed– entered Trinity College, Cambridge. Soon after Newton obtained his BA degree at Cambridge in August 1665, the university temporarily closed as a precaution against the Great Plague. Although he had been undistinguished as a Cambridge student, his private studies and the years following his bachelor’s degree have been described as “the richest and most productive ever experienced by a scientist.”
Relevantly to the piece above, Newton was party to a dispute with Gottfried Wilhelm Leibniz (who started, at age 14, at the University of Leipzig the same year that Newton matriculated at Cambridge) over which of them developed calculus– called “the greatest advance in mathematics that had taken place since the time of Archimedes.” The modern consensus is that the two men independently developed their ideas.

“While there might be a bit of genius in what we create, the real genius rests in whoever created the essential materials without which we could not create.”*…
Ben Reinhardt on how to mass-produce the new substances on which the cavalcade of wonders that populate ours lives depend…
I’m writing these words using plastic keys, on a composite wood desk, looking at a Gorilla Glass screen. The screen is linked to a machined-aluminum computer, inside of which doped silicon switches on and off a billion times per second.
One hundred and fifty years ago, not a single one of these materials existed.
Materials are not charismatic technologies like cars or computers. Yet they enable almost every one of humanity’s technical achievements: rebar unlocked the skyscrapers of the 1920s; chemically strengthened glass delivered us smartphones; and stainless steel, not created until 1913, brought with it the clinical equipment upon which modern medicine depends.
New materials create fundamentally new human capabilities. And yet, despite university teams regularly announcing triumphantly that they’ve created a material with seemingly magical properties like artificial muscles made out of carbon nanotubes or ‘limitless power’ from graphene, new materials-enabled human capabilities have been rare in the past 50 years.
Why is there such a gap between headlines and reality when it comes to new materials? Is there anything we can do about it?
The only way to answer those questions is to understand how a material goes from a tiny test tube sample to a commodity measured in megatons. Each step in the process requires different skills, mindsets, and resources. Each step is also governed by different incentives that make sense locally but create deadly traps for the entire process. Bypassing these traps needs systems-level solutions that take into account each step of the process – whether in policy, organizational reform, or new institutions – and unlock the progress that new materials enable…
Fascinating: “Getting materials out of the lab,” from @benjaminreinhardt.com in @worksinprogress.bsky.social.
See also: “The Wonder of Modern Drywall.”
(Image above: source)
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As we celebrate stuff, we might recall that it was on this date in 1892 that Dr. Washington Sheffeld, a pioneering dentist and dental surgeon, invented the collapsible metal toothpaste tube– making dental hygiene easier– and thus more regular– for millions. His original toothpaste recipe continues to be packaged and sold as “Dr. Sheffield’s: The Original Toothpaste.”
“Enjoy every sandwich”*…
See how your quick, on-the-go lunch sandwich was produced (and as a bonus, how your big catch at sea becomes a permanent part of your decor)…
* Warren Zevon
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As we contemplate commercial comestibles, we might send inventive birthday greetings to Benjamin Thompson; he was born on this date in 1753. A supporter of the Tory Loyalist cause during the American Revolution, he fled to England after the war, where his scientific efforts during the conflict had earned him a reputation (and a knighthood). But he soon decamped to Bavaria, where he served as an aide-de-camp to the Prince-elector Charles Theodore. He reorganized Charles Theodore’s army and created the Englischer Garten in Munich, which remains one of the largest urban public parks in the world. For his efforts, in 1791 Thompson was made an Imperial Count, becoming Reichsgraf von Rumford. He took the name “Rumford” after the town of Rumford, New Hampshire, which was an older name for Concord where he had been married.
Relevantly to today’s post, he studied methods of cooking, heating, and lighting, including the relative costs and efficiencies of wax candles, tallow candles, and oil lamps. He invented Rumford’s Soup, a nourishing soup for the poor, and established the cultivation of the potato in Bavaria. And he invented the double boiler, a kitchen range, a coffee percolator– and the Rumford fireplace (which more efficiently heated rooms). He is also credited with the invention of thermal underwear and with creating the “baked Alaska.”
“Give credit where credit is due”*…
In the early 19th century, a young woman revolutionized the lumber business…
As a young woman, Tabitha Babbitt was a weaver in Harvard, Massachusetts. She used to watch the workers at the local sawmill. Observing them use the difficult two-man whipsaw, she noticed that half of their motion was wasted. It had two handles which two men would pull from side to side. However, the saw only cut the wood when it was being pulled forward. This meant the second or reverse pull was fairly useless other than to get the saw back to starting position which was a waste of energy. Tabitha proposed creating a round blade to increase efficiency. Eventually she came up with a prototype, attaching a circular blade to her spinning wheel, using the pedal of her wheel to power it. As the blade spun, no movement was wasted. The circular saw was connected to a water-powered machine to reduce the effort to cut lumber, meaning that wood could be cut faster with half the manpower. The first circular saw she allegedly made is in Albany, New York State USA. A larger version of her design was later installed in the sawmill.
But – Tabitha was a member of the Shakers, a Christian sect founded circa 1747 in England who had emigrated and settled in revolutionary colonial America. Their core beliefs centred round a perfect society, created through communal living, gender and racial equality, pacifism, confession of sin, celibacy and separation from the world. As such, they valued hard manual work, a simple lifestyle, and thrived on the forestry industry.
However, their beliefs prohibited any member applying for patents as they believed intellectual properties should be shared by the community with no restriction. Because she did not patent it (and according to wiki the reference to her invention exists only in Shaker lore), there is controversy over whether she was the first true inventor of the circular saw.
Two French men patented the circular saw in USA after reading about her saw in Shaker papers. One of the patentees, Stephen Miller argues she wasn’t the first inventor based on the date she joined the sect. He contended that it was invented at Mount Lebanon Shaker Village by Amos Bishop or Benjamin Bruce in 1793 – or not by a Shaker at all.
Samuel Miller obtained a patent in UK for a saw windmill which supposedly used a form of a circular saw in 1777 though the type of saw is only mentioned in passing, making it seem as though it was not his invention. Walter Taylor a few years later in same area of the United Kingdom seemed to have types of circular saws at his sawmill but in fact he only ever received patents for improvements to blockmaking.
However, it appears Babbitt’s circular saw design was much larger than other circular saw mechanisms and enough modifications were made to differentiate her invention from the rest. Her basic design was also the one that soon was copied at various American sawmills, popularising the use of circular saw in mills.
Tabitha was also credited with improving the spinning wheel head, inventing a process to manufacture false teeth, and inventing a process for manufacturing the then semi-revolutionary type of nail known as “cut nails” which replaced forged nails, a claim to fame she shares with a few other inventors including famed inventor Eli Whitney…
An unsung hero: “Tabitha Babbitt” from the Mills Archive, via Mathew Ingram‘s When the Going Gets Weird (also source of the image above).
* Attributed to Samuel Adams, who used the phrase in a late 18th century letter
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As we investigate innovation, we might recall that it was on this date in 1959 that Jack Kilby of Texas Instruments filed the first patent for an integrated circuit (U.S. Patent 3,138,743). In mid-1958, as a newly employed engineer at Texas Instruments, Kilby didn’t yet have the right to a summer vacation. So he spent the summer working on the problem in circuit design known as the “tyranny of numbers” (how to add more and more components, all soldered to all of the others, to improve performance). He finally came to the conclusion that manufacturing the circuit components en masse in a single piece of semiconductor material could provide a solution. On September 12, he presented his findings to the management: a piece of germanium with an oscilloscope attached. Kilby pressed a switch, and the oscilloscope showed a continuous sine wave– proving that his integrated circuit worked and thus that he had solved the problem.
Kilby is generally credited as co-inventor of the integrated circuit, along with Robert Noyce (who independently made a similar circuit a few months later). Kilby has been honored in many ways for his breakthrough, probably most augustly with the 2000 Nobel Prize in Physics.









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