The Unlikely Record · Episode 11 · Twelve stories
Twelve changes of purpose, from wallpaper cleaner to classroom dough
A material can outlive the problem that first brought it into being. These twelve histories follow objects and compounds as teachers, engineers, researchers and customers found different uses for them. Some begin with an unexpected observation; others turn on manufacturing, trials or a new way of selling an existing idea. Patents and dated records help separate those changes from the polished origin stories that followed.
Story 01
The Cleaner Entered the Classroom
The soft material that became Play-Doh had already spent years doing an unglamorous job. Kutol supplied a pliable compound for lifting soot from wallpaper. Its market belonged to homes whose coal fires left dirt on walls that could not simply be washed. In 1933, the Cincinnati business secured a large grocery contract for the cleaner.
After the Second World War, changes in household heating helped shrink that market. The family business needed another use for its equipment and product. The suggestion came through Kay Zufall, a schoolteacher and relative of Joseph McVicker, who had taken a role in running Kutol after his father’s death.
In 1955, Zufall’s pupils used the material to make small shapes. McVicker visited the classroom and saw a possible business in the children’s activity. The compound was adapted for play, and Rainbow Crafts was established in 1956. Coloured versions followed the original pale dough in 1957.
The change depended on more than putting a cheerful label on a cleaning product. A teacher had supplied a different test: whether children could handle the material and enjoy making things with it. Factory equipment associated with removing marks from walls could now supply something intended to leave evidence of imagination on a classroom table.
Evidence and sources
Museum histories distinguish the 1955 classroom experiment from the 1956 company launch.
- The History of Play-Doh: Good, Clean Fun! — The Strong National Museum of Play
- Play-Doh — The Strong National Museum of Play
Story 02
The Spring That Acquired an Audience
In 1943, Richard James was working with springs intended to steady equipment aboard ships. According to the National Museum of Play’s history, a sample fell from a shelf and moved from one level to another before settling. A spring that behaved unexpectedly on a workbench suggested a different kind of object.
Richard and Betty James developed that possibility into a toy. Betty found the name Slinky in a dictionary. But a coil on a shop shelf did not explain its own appeal: a customer needed to see what it could do. At Gimbels in Philadelphia during the 1945 Christmas season, a demonstration helped sell their initial stock.
The patent granted on 28 January 1947 made the performance explicit. It described a spring passing its turns between its ends and walking down an incline or steps with gravity providing the motion after the start. Its drawings showed the coil, a sloping platform and arrangements for displaying movement.
The patent is a useful companion to the familiar origin anecdote. It records an invention whose entertainment value depended on carefully controlled physical behaviour. The product was neither an ordinary spring accidentally sold as a toy nor a mechanism hidden inside a novelty. Its visible material, shaped and demonstrated effectively, supplied the whole performance.
Evidence and sources
The workshop origin is preserved in a later museum history; the toy’s form and operation also survive in a contemporary patent.
- Slinky — The Strong National Museum of Play
- Patent Drawing of a Slinky, 21 August 1946 — National Archives / DocsTeach
- Toy and Process of Use, Patent 2415012 — United States Patent Office
Story 03
Radar Hardware Faced the Dinner Plate
Percy Spencer’s wartime work concerned magnetrons, the devices that generated microwaves for radar. At Raytheon, he helped change their manufacture from a slow process into one capable of supplying equipment in much larger numbers. Food was not the purpose for which that production effort had been organised.
In 1945, Spencer demonstrated another use for microwave energy: cooking. His application for a patent called Method of Treating Foodstuffs was filed on 8 October. Rather than presenting a finished countertop appliance, it described how electromagnetic energy could be directed toward food and discussed why the chosen frequencies mattered.
The drawing is strikingly industrial. Magnetron oscillators connect to a common waveguide; a conveyor carries the item to be cooked past the energy source. Granted on 24 January 1950, the patent shows a proposed process whose arrangement is quite different from the small enclosed ovens that later became familiar in kitchens.
Spencer’s contribution connects two forms of engineering work. Improving the manufacture of a radar component made him intimately familiar with a powerful source of energy. Applying that energy to food required a new arrangement and a new purpose. The patent preserves that change at the level of a working proposal, before later appliance design made the result seem an ordinary part of making a meal.
Evidence and sources
A contemporary patent establishes the cooking proposal and filing date; the story does not depend on a particular snack-origin anecdote.
- Percy L. Spencer — National Inventors Hall of Fame
- Method of Treating Foodstuffs, U.S. Patent 2495429 — United States Patent Office, reproduction at Google Patents
Story 04
The Wallpaper Went Inside the Box
The air pockets in Bubble Wrap were first intended to be seen. In Sealed Air’s account of its origins, Alfred Fielding and Marc Chavannes experimented in 1957 with textured wallpaper. They sealed together two plastic shower curtains, trapping bubbles between the layers. A surface intended to decorate a room emerged from the experiment.
That proposed market did not become the product’s lasting home. The same structure offered another possibility: a lightweight cushion between a fragile object and the harder surfaces around it. The air cells could become useful precisely when the material was hidden from view inside a shipping container.
Fielding and Chavannes founded Sealed Air in 1960. The company’s history identifies shipments of IBM’s 1401 computer among the early uses of the protective material. A product conceived for walls was entering a business concerned with moving valuable equipment safely between factories and customers.
This second career changed the standard by which the invention would be judged. Decorative wallpaper needed to appeal to someone looking at a room. Packaging had to perform while a box was handled and transported, then be removed on arrival. The bubbles stayed at the centre of the product, but their purpose shifted from surface effect to a practical separation between an object and the journey around it.
Evidence and sources
Sealed Air’s retrospective histories describe the wallpaper experiment and the subsequent packaging business.
- Bubble Wrap protective packaging: historical account — Sealed Air
- Bubble Wrap Appreciation Day, 27 January 2020 — Sealed Air
Story 05
The Cylinder Kept Its Weight
Roy Plunkett was investigating refrigerants when a cylinder failed to behave as expected. In 1938, at DuPont’s Jackson Laboratory, he had stored tetrafluoroethylene gas in cylinders cooled with dry ice. One seemed to have stopped supplying gas, yet its weight indicated that the contents had not simply escaped.
Opening the container revealed a white solid. The gas had polymerised into a material with a remarkably useful combination of properties: resistance to heat and chemical attack, together with low friction. Plunkett examined the result, while other researchers took on the longer work of developing applications for it.
The material, polytetrafluoroethylene, became known through the trademark Teflon. An early use was far removed from domestic cooking. Its resistance to corrosive substances made it valuable in equipment associated with the Manhattan Project’s uranium-separation work. A refrigerant experiment had supplied a material suited to a demanding industrial environment.
In 1951, guests at the ceremony awarding Plunkett the Scott Medal received Teflon-coated muffin tins. The gift made a laboratory material tangible in an everyday form. Between the unexpectedly heavy cylinder and the baking tin lay characterisation, development and different users finding value in the same properties. The discovery supplied a possibility; the successive applications gave it several distinct working lives.
Evidence and sources
Institutional biographies document the material’s discovery and subsequent uses; the familiar discovery photograph is a reenactment.
- Roy J. Plunkett — Science History Institute
- Roy J. Plunkett — National Inventors Hall of Fame
Story 06
The Bookmark Became a Message
Art Fry had a small problem while singing in a church choir: the paper marking his place in the hymnal kept falling out. In his account of the idea, the frustration brought to mind an adhesive he had encountered at work. It could attach a piece of paper without committing it permanently to the surface beneath.
At 3M, Spencer Silver had developed an adhesive whose tiny microspheres did not behave like the strong bonding material expected for conventional tape. He shared the work with colleagues. Fry attended one of those presentations, and in 1974 the choir problem gave him a reason to return to it.
Fry made bookmarks using the adhesive, then began using small pieces of paper to exchange messages with his supervisor. A way to keep a place in a book had become a way to put a note where someone would encounter it. The usefulness depended on removal as well as attachment.
Turning samples into a dependable product took further work. In 1977, 3M tried the notes in four cities as Press ’n Peel; the national American introduction as Post-it Notes followed in 1980. The familiar square therefore carries two changes of purpose: an unusual adhesive found a use as a bookmark, and the bookmark found a larger audience as a movable message.
Evidence and sources
Fry’s first-person recollection and institutional histories connect the choir problem, reusable notes and later product launch.
- Art Fry: Post-it Note Inventor — Smithsonian Lemelson Center
- How Did Art Fry Co-Invent Post-it Notes? — National Inventors Hall of Fame
Story 07
A Different Question for the Same Compound
Sildenafil began in a research programme looking for a treatment for angina. In 1986, scientists at Pfizer identified compounds that inhibited an enzyme called phosphodiesterase five. One candidate, initially designated UK-92,480, became the substance later sold as Viagra. Its eventual public identity was not the original goal of the programme.
The redirection depended on growing knowledge of blood-vessel signalling and erectile function. By 1997, a series of clinical trials had investigated sildenafil for erectile dysfunction. American approval followed in March 1998, establishing a new use after years of development rather than immediately after an unexpected observation.
A paper published that May described two sequential, placebo-controlled studies involving 861 men. The researchers used questionnaires and patient logs to assess responses and recorded adverse effects. Those methods matter to the story: a promising biological effect had to be translated into evidence about a defined group of patients under specified conditions.
A further development followed. Research on the pulmonary circulation led to trials and, in 2005, approval for pulmonary arterial hypertension. The same compound thus travelled through several medical questions. Its history shows how knowledge, patient studies and regulatory decisions could change an invention’s purpose without making those purposes interchangeable.
Evidence and sources
Published research documents the change in indication and controlled trials; the account concerns medical history rather than treatment advice.
- Sildenafil: from angina to erectile dysfunction to pulmonary hypertension and beyond (public key points and abstract) — Ghofrani, Osterloh and Grimminger; Nature Reviews Drug Discovery
- Oral Sildenafil in the Treatment of Erectile Dysfunction — Irwin Goldstein and colleagues, Sildenafil Study Group; New England Journal of Medicine
338:1397–1404; two sequential placebo-controlled studies
Story 08
The Fountain Drink Left the Counter
Before Coca-Cola was a fountain drink, John Pemberton had sold a preparation called French Wine Coca. The Library of Congress places that product in the nineteenth-century trade in wine-based tonics. Local prohibition helped prompt a nonalcoholic reformulation, placing the eventual soft drink within a changing market for products sold by druggists.
On 8 May 1886, the drink was served at Jacobs’ Pharmacy in Atlanta. It was mixed with carbonated water and sold by the glass. The counter was part of the product’s delivery system: customers encountered the syrup after somebody had prepared a drink for immediate consumption.
Joseph Biedenharn tried a different arrangement in Vicksburg in 1894. According to the company’s history, he installed bottling equipment behind his store and sold cases to farms and lumber camps along the Mississippi. A customer no longer had to stand near a soda fountain to obtain the drink.
A broad bottling contract followed in 1899, when Benjamin Thomas and Joseph Whitehead secured rights from Asa Candler. The transition combined changes in formulation, presentation and distribution. A preparation with a tonic background became a fountain refreshment, then a packaged drink that could travel. Its second career required the bottle and the commercial agreements around it as well as the liquid itself.
Evidence and sources
The early tonic context comes from the Library of Congress; bottling dates follow the separately cited company chronology.
- World’s First Coca-Cola was Served — Library of Congress
- The Birth of a Refreshing Idea — The Coca-Cola Company
- The Asa Candler Era — The Coca-Cola Company
Story 09
The Container Learned to Fly
A shallow container can invite an unintended experiment: turn it sideways and throw it. Fred Morrison later recalled playing catch with a popcorn-tin lid and then cake pans with Lucile Nay in the 1930s. The improvised game supplied a practical starting point for an object that would eventually be manufactured expressly to fly.
In 1948, Morrison and Warren Franscioni developed a plastic disc marketed as the Flyin-Saucer. The product no longer depended on somebody emptying a household container first. Its material and form belonged to the game, and Morrison continued developing the idea into the later Pluto Platter.
Wham-O acquired that design in 1957. The name Frisbee became attached to it, with museum histories preserving a separate tradition about students throwing tins from the Frisbie baking business. That explanation of the name should not collapse every experiment with a flying lid into one moment of invention.
The transformation involved two related histories: ordinary objects borrowed for play, and a commercial toy deliberately developed from that kind of activity. The household pan contributed a possibility, while plastic manufacture allowed a repeatable product. The brand name, the remembered first throw and the design’s development each illuminate a different part of the journey from a container to something intended to remain briefly in the air.
Evidence and sources
The plastic-disc development is documented; memories of early throwing and the bakery-name tradition have different evidential status.
- A Flick of the Wrist: Flying Discs and Frisbees — The Strong National Museum of Play
- Frisbee — The Strong National Museum of Play
- The First Frisbee Competition in Lincoln, 1957 — Nebraska State Historical Society
Opening account of Morrison’s sale of the Pluto Platter
Story 10
The Coating Left the Cloth
Jacques Brandenberger wanted to make fabric resist spills. Experiments with a coating produced an awkward result: the cloth became stiff, while a transparent film could be separated from it. The part that came away suggested a product of its own. A failed textile treatment had opened a route toward cellophane.
Making a sheet in an experiment was only part of the problem. Brandenberger developed manufacturing methods, and his patents record further work on cellulose films. One patent granted in 1918 shows rollers producing a composite film. It belongs to a continuing programme of development, rather than illustrating the original spill that later accounts made famous.
On 4 April 1924, DuPont’s Buffalo plant began American cellophane production. The transparent wrapping offered an appealing way to show goods while covering them. Yet early customers found a limitation: resistance to liquid water did not mean that water vapour could not pass through the material.
William Hale Charch and Karl Prindle worked on that problem, developing a moisture barrier within the following three years. Packaging therefore demanded another alteration after the film had already found its market. From coating to free-standing sheet to improved wrapper, the invention’s usefulness grew through different tests: what it did to cloth, how it could be made, and what it kept outside a package.
Evidence and sources
Institutional accounts distinguish the first film, later manufacturing developments and the separate problem of blocking water vapour.
- Jacques E. Brandenberger — National Inventors Hall of Fame
- Cellophane Comes to Buffalo — Science History Institute
- Composite Cellulose Film, U.S. Patent 1266766 — United States Patent Office, reproduction at Google Patents
Story 11
The Heat Pump Suggested a Water Toy
Lonnie Johnson’s work crossed nuclear engineering, military systems and space exploration. But the experiment that led to his best-known toy took place at home. In 1982, while working on a heat pump using water, he attached a high-pressure nozzle to a bathroom sink and saw the force of the resulting stream.
In the account preserved by the Smithsonian’s Lemelson Center, that observation suggested a toy. Johnson made a prototype and gave it to his daughter; her friends’ enthusiasm helped establish that the idea had an audience. He also saw the possibility of financing other inventions through a successful product.
The patent application filed on 14 October 1983 described a squirt gun using compressed air, a water reservoir and a trigger-operated valve. Granted on 27 May 1986, it records a deliberately engineered device, complete with drawings and claims. The leap from a sink experiment to a saleable toy required considerably more than renaming a piece of laboratory equipment.
In 1989, Johnson licensed the invention to Larami. The Super Soaker became the public face of work carried out by an engineer whose interests extended well beyond toys. Its origin joins those interests together: research into an energy technology prompted an observation, and a child’s play test helped turn that observation toward a different market.
Evidence and sources
Johnson’s interview-based account supplies the home experiment; the patent and licensing chronology provide dated records.
- Meet Lonnie Johnson, the Man Behind the Super Soaker — Smithsonian Lemelson Center
- Lonnie Johnson — National Inventors Hall of Fame
- Squirt gun, U.S. Patent 4591071 — United States Patent and Trademark Office, reproduction at Google Patents
Story 12
The Broken Flask Became a Construction Idea
Édouard Bénédictus told a memorable story about a flask. Recalling the event in 1930, he said that in 1903 a glass vessel had fallen and cracked, yet retained its form because a dried film inside held the fragments together. Later thoughts about injuries caused by broken vehicle windows brought the incident back to him.
The recollection gives the invention an easily pictured beginning. The patent record supplies a less instantaneous history. Bénédictus filed his first American application in January 1910, describing glass combined with an intervening sheet of celluloid. The patent granted in May 1914 includes drawings of the layers and discusses several ways to arrange them.
A transparent material that had served other purposes could now help keep broken glass together. The proposal extended beyond a single flat pane, and further patents addressed practical difficulties of making the laminated product. Conservation research also identifies an earlier English patent by John Crew Wood, placing Bénédictus within a wider field of experimentation.
The resulting Triplex business gave the layered material a commercial identity. Its development is more substantial than the falling-flask anecdote alone: a remembered accident, earlier work by another inventor, specifications, manufacturing problems and successive improvements all belong to the record. The useful idea was not to make glass incapable of breaking, but to change what happened to its fragments.
Evidence and sources
The flask episode was recalled in 1930; contemporary patents establish the layered-glass design and its continuing development.
- Conserving Plastics in Early Aircraft Cockpits — National Park Service / Smithsonian conservation research
- Reinforced glass and process of manufacturing the same, U.S. Patent 1098342 — United States Patent Office, reproduction at Google Patents
- Edouard Benedictus: A Spectacle of Colour — Musée des Arts Décoratifs
A second use rarely arrived fully formed. A spring needed a demonstration, a film needed a moisture barrier, and a promising compound needed clinical evidence. The surprising moment opened a possibility; the work after it determined whether that possibility could become something people used.
About the evidence labels
Documented identifies a supported historical event. Disputed marks an account whose explanation or details remain contested. Folklore identifies a recorded tradition; its inclusion does not establish that a supernatural event occurred.
