Sometimes major inventions happen by accident.Some big examples include penicillin, velcro, and the microwave oven.Sometimes the best inventions are discovered by accident.One day in 1928, Sir Alexander Fleming returned to his lab in London after a two-week vacation to find that mold had developed on a contaminated staphylococcus culture plate. The scientist was searching for a 'wonder drug' to cure a wide variety of diseases. A moldy Petri dish was not a part of the plan, but Fleming noticed the culture had prevented the growth of staphylococci. Further examination revealed penicillin, a powerful antibiotic that could be used to treat everything from tonsillitis to syphilis.Sir Alexander Fleming's careless mistake became one of the most important medical discoveries in history. Thanks to penicillin, the rate of death due to infectious disease is now 5% of what it was at the beginning of the 20th century.Accidental breakthroughsToday's infographic, fromBroadbandwhatever, highlights some noteworthy accidental inventions in modern history and demonstrates that not all accidents are created equal.Courtesy of: Visual CapitalistOther noteworthy accidental inventionsCoca-ColaThe 1880s was the era of miracle elixirs and across America pharmacists were cooking up 'cures' for every conceivable ailment. Atlanta-based pharmacist, John Pemberton, capitalized on the trend by selling a French Wine Coca concoction that was touted as a cure for headaches and nervous disorders. Pemberton's business hit a speed bump in 1885, when Atlanta banned the sale of alcohol, so he omitted the wine and created a coca-based syrup that could be mixed with carbonated water and drank as a soda. He named this new 'brain tonic' Coca-Cola.VelcroSwiss engineer George de Mestral was out hunting in the Alps with his dog when he noticed burrs sticking to its fur. To satisfy his curiosity about what makes burrs so 'sticky', Mestral viewed one under a microscope and observed the tiny hooks that allow it to latch on to surfaces like fabric and fur. For years, Mestral experimented with a variety of textiles before arriving at a solution: Velcro, which he eventually patented. The technology was useful, but really began to take off in popularity when Apollo astronauts used Velcro to keep objects secure in orbit.TeflonNext time you're making breakfast, remember that Roy Plunkett is the reason you're able flip pancake with ease. Long before CFCs became the environmental super-villain depleting the ozone layer, the chemist was aiming to create a new type of chlorofluorocarbon. One day, when Plunkett returned to a refrigeration chamber to check on an experiment, a canister that had contained gas had vanished leaving a few white flakes behind. Upon examining the mysterious substance, he realised it had a very high melting point and was very effective as a lubricant. Teflon was first used in military applications and is now famously applied to cookware around the world.A note on silver liningsWhether you're experimenting with materials or working on a new business, you never know when a mishap can transform into your 'Eureka' moment.SEE ALSO:America's most valuable companies over the last 100 yearsJoin the conversation about this storyNOW WATCH: How couples improved their sex lives in just one week
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