8 Accidental Inventions and Discoveries

While inventors are often celebrated, many of their creations were the result of unexpected accidents or lucky turns of fate. This is true for countless everyday objects, including surprising breakthroughs. From the microwave to the Slinky, many items owe their existence to serendipity. Let’s explore the fascinating tales behind these accidental innovations that revolutionized daily life.

11. The Accidental Discovery That Gave Us Matchsticks

In the world of accidental inventions, the matchstick stands as a prime example of how chance can shape scientific progress. In 1826, English chemist John Walker made an unintentional discovery while working in his lab. He scraped a mixture-coated stick against a hearth, sparking an unexpected flame. Fascinated by this, Walker experimented with the composition of the stick to improve its flammability.

This led to the development of his first prototype, which he called 'Friction Lights.' These early matches consisted of a wooden stick with a small piece of chemical-coated paper attached to one end. When the coated end was drawn through sandpaper, it would ignite. Over the years, improvements to the design were made, enhancing safety and effectiveness. The invention of the matchstick highlights how innovation often follows unpredictable paths, reminding us that sometimes, the greatest discoveries come from happy accidents.

10. Chocolate Chip Cookies at Toll House Inn

Chocolate chip cookies, now a beloved treat in countless households, also belong to the category of accidental innovations that have left a lasting impact. In the 1930s, Ruth Wakefield, the owner of the Toll House Inn in Whitman, Massachusetts, sought to bake chocolate cookies for her guests. When she ran out of baker’s chocolate, she used pieces of a Nestle chocolate bar instead. Unlike the baker’s chocolate, these Nestle pieces didn’t melt into the batter but retained their shape.

This unexpected result quickly won over her guests. While the creation of the chocolate chip cookie is often considered an accident, some believe Wakefield, a skilled baker, might have purposely experimented with her recipe to create something new. Whether intentional or not, what is undeniable is that she never expected her invention to become the iconic treat it is today, with an enduring popularity that has spanned generations.

9. Corn Flakes: Another Happy Accident

In the late 1800s, Dr. John Harvey Kellogg served as the superintendent of the renowned Battle Creek Sanitarium in Michigan, a prestigious medical center and hotel. Alongside his brother, W.K. (Will Keith) Kellogg, both Seventh-day Adventists, they were firm believers in vegetarianism. They sought wholesome food options to promote a healthy digestive system for their clients, as Dr. Kellogg frequently treated patients suffering from digestive issues.

The precise circumstances of the cereal's creation are somewhat unclear, but the story goes like this: One day, a batch of wheat-based cereal dough was left out too long and began to ferment. Rather than discard it, the Kelloggs passed it through rollers, hoping to form sheets of dough. To their surprise, the dough broke into perfect flakes. These flakes were toasted and served to the patients, quickly becoming a hit. The brothers later patented the product, naming it Granose.

As time went on, W.K. experimented with different grains and eventually settled on corn, which yielded crispier flakes. He went on to buy the rights to the cereal recipe and founded the Battle Creek Toasted Corn Flake Company, producing the now-famous Kellogg's Corn Flakes. After W.K.'s company achieved massive success, Dr. Kellogg became envious and created his own rival cereal. The two brothers ended up suing each other, with W.K. emerging victorious. Despite this, they remained estranged until their deaths.

8. A Candy Bar Led to the Invention of the Microwave Oven

In 1945, Percy Spencer, an engineer for the Raytheon Corporation, was experimenting with a powerful new vacuum tube known as a magnetron. One day, while working, he noticed that a peanut-cluster candy bar in his pocket began to melt when he was near the magnetrons. Curious about this, he placed some popcorn and then an egg near the magnetrons, both of which cooked within seconds.

Recognizing the groundbreaking potential of this discovery, Spencer and Raytheon patented the process and integrated it into a kitchen appliance they called the RadaRange. Released in 1947, the RadaRange was initially marketed to the food industry. The appliance was enormous, weighing 750 pounds, standing 5 1/2 feet tall, and costing about $5,000 — the equivalent of $69,000 today.

The RadaRange, however, struggled to gain traction due to its size, steep price, and unfamiliar technology. Initially, it was seen as one of Raytheon's greatest failures. Yet by 1975, the product had been reimagined as a smaller, more affordable countertop appliance. This new iteration of the microwave oven became wildly popular, even outselling gas ranges that year.

7. Silly Putty - An Accidental World War II Invention

Silly Putty, the stretchy, bouncy, and breakable silicone-based plastic clay, was originally created during World War II in 1943 when General Electric researcher James Wright accidentally combined boric acid with silicone oil while trying to make a synthetic rubber. Though it wasn’t the affordable alternative he had hoped for, it resulted in a polymer that bounced. However, it took several years before a practical application was found.

In 1950, marketing expert Peter Hodgson recognized the potential of the product and renamed it Silly Putty. Children were captivated by its versatility — they could stretch it, mold it, or roll it into a ball and bounce it. But the putty’s uses extended beyond just a toy. It could pick up dirt, lint, and pet hair, stabilize wobbly furniture, reduce stress, assist in physical therapy, and aid in scientific simulations. The crew of Apollo 8 even used it to secure tools in zero gravity.

6. The Post-it Note Was Inspired by Choir Practice

A Post-it Note is a small piece of paper with a strip of low-tack adhesive on the back, making it easily attachable to a variety of surfaces like documents, walls, or computer monitors. Dr. Spencer Silver, a 3M scientist, first discovered the adhesive in 1968, which adhered firmly to surfaces but could also be effortlessly removed. However, he initially struggled to find a practical use for the invention.

During church choir practice, 3M scientist Art Fry was constantly frustrated as the small scraps of paper he used to mark hymns kept falling out of his hymnal. He needed something that could adhere to the page without causing any damage. One day, he remembered a talk by his colleague Dr. Spencer Silver about his adhesive, which gave him the idea to solve both of their problems — a sticky note that used Silver’s adhesive.

Fry created the sticky notes and shared them with his colleagues, who quickly loved them. Initially launched by 3M as Press 'n Peel, the product met with only modest success. However, it eventually gained immense popularity and was renamed Post-it Notes. Despite early skepticism from the company regarding its profitability, Post-it Notes went global by 1980, and today they are sold in over 100 countries.

5. A Chance Observation That Led to Velcro

In the 1940s, Swiss engineer George de Mestral made a fascinating observation. After a walk in the countryside with his dog, he noticed that burs from the burdock plant were stubbornly attaching themselves to both his clothes and his dog's fur. Intrigued by this, de Mestral examined the burs under a microscope and found they were covered in tiny hooks. These hooks would latch onto loops in fabrics or fur, allowing the burs to travel and spread their seeds.

Inspired by this natural phenomenon, de Mestral began experimenting with various materials to replicate the bur’s design. After many trials, he developed a fastening system using two strips: one with tiny hooks and the other with loops. When pressed together, the hooks would catch onto the loops, forming a secure yet easily removable bond. De Mestral named this invention Velcro, a blend of the French words "velour" (velvet) and "crochet" (hook).

4. The Sweet Discovery of Saccharin

In 1879, Russian chemist Constantin Fahlberg, working under Professor Ira Remsen at Johns Hopkins University, stumbled upon saccharin, the first artificial sweetener. The precise circumstances of its discovery are unclear, but one version suggests Fahlberg noticed a sweet taste on his hand after handling benzoic sulfimide. Another tale says he placed his cigarette on a lab bench, and when he later took a puff, it left a sweet taste in his mouth. In 1880, both Fahlberg and Remsen published their findings, naming it saccharin. However, in 1884, Fahlberg secured a patent and began mass-producing it in Germany without Remsen's involvement.

Despite health concerns surrounding saccharin since 1906, it gained widespread popularity as a sugar substitute during World War I, when sugar was in short supply. Its use continued to grow in the 1960s and 1970s when it was marketed as a weight-loss aid under the brand name Sweet'N Low, particularly in diet sodas. In the 1970s, food scientists discovered that saccharin caused bladder cancer in rats, leading to a warning label on the product. However, it was later determined that rats and humans metabolize saccharin differently, prompting the removal of the warning. Despite newer artificial sweeteners, saccharin, with its distinctive aftertaste, remains a popular choice.

3. Slinky - An Unexpected Invention That Changed Toy History

In 1943, Naval engineer Richard James was working on developing a spring to help stabilize sensitive equipment on ships that were constantly tossed around by the sea. During this process, one of the coiled wires he was working with accidentally fell off a shelf and began to move in a fascinating end-over-end motion.

That evening, James shared the discovery with his wife, Betty, and they both realized it had the potential to be a fantastic toy. Betty, intrigued, searched through a dictionary and found the perfect name — Slinky, defined as "sleek and sinuous in movement or outline." In 1945, the James couple founded James Industries, and the Slinky toy was born.

Initially, the Slinky wasn't a success, but the Jameses managed to convince the Gimbels department store in Philadelphia to let them demonstrate their unique toy during the Christmas shopping season. The store had stocked 400 units, and they sold out in less than two hours.

However, the business nearly went bankrupt when Richard joined a religious cult, giving away large sums of money and leaving the family. Determined to revive the business, Betty mortgaged their house and attended a toy show in New York in 1963, where she successfully promoted the product again. Orders began flooding in, and she was able to bring the business back to life.

To date, over 300 million Slinky toys have been sold across the globe. The toy has become so iconic that the U.S. Postal Service issued a Slinky stamp in 1999, and it was inducted into the National Toy Hall of Fame in 2000. There's even a National Slinky Day on August 30, and a historical marker in Clifton Heights, a suburb of Philadelphia, where it was first produced.

2. Viagra Was Meant To Treat Other Conditions

In the 1990s, Pfizer researchers were developing a new drug to treat high blood pressure and angina pectoris, a type of heart disease. The drug, Sildenafil, showed great promise, and trials began with male volunteers in Wales. While it was ineffective for treating angina, the volunteers reported an unexpected side effect: they experienced penile erections as soon as 30 to 60 minutes after taking the medication.

Pfizer quickly recognized the potential of the drug for treating erectile dysfunction, and they patented it in 1996. Just two years later, it received FDA approval for that purpose, becoming an immediate success. With 30 million men in the U.S. experiencing erectile dysfunction, Viagra became one of the most popular drugs in history. Today, it faces competition from other medications such as Cialis (tadalafil) and Levitra (vardenafil).

1. The Beat Generation Helped Inspire Bubble Wrap

In 1957, engineers Alfred Fielding and Marc Chavannes teamed up to create a unique, textured wallpaper. Their intended audience was the Beat Generation — a group who rejected traditional societal norms in favor of Buddhism, free love, drugs, and jazz. The duo ran two plastic shower curtains through a heat-sealing machine, resulting in a clear, bubbly sheet that looked promising but failed as wallpaper.

Despite their initial failure, Fielding and Chavannes continued to brainstorm alternative uses for their creation. Their second attempt — using the bubbly material for greenhouse insulation — also did not succeed. However, in 1960, after forming their company, Sealed Air Corp., they hit the jackpot by marketing it as protective packaging, which became known as Bubble Wrap. This once-failed wallpaper became a revolutionary packing material, providing superior protection to the previously used balled-up newspaper and leaving no ink stains behind. Today, Sealed Air is a Fortune 500 company.