Microwave OvenPercy Spencer is a self-taught engineer who did not finish even primary school. He self-taught himself math, science, and electrical engineering while standing guard on ships in the Navy. Before, during, and after WWII, Spencer worked on top-secret magnetrons, the high-powered electrical devices at the heart of a RADAR system. One day he noticed that … Continue reading "Microwave Oven"
Blue Ocean Strategy & Finance: Margin LendingMargin lending refers to the process of using borrowed money for investing. For example, a traditional investor may purchase 100 shares of a business for $10, spending $1,000. However, using margin, that same person may purchase 150 shares, spending the same $1,000 and borrowing another $500. If the stock price goes up, they pay the … Continue reading "Blue Ocean Strategy & Finance: Margin Lending"
Contact LensesLeonardo DaVinci proposed the first contact lens idea in his Codex of the Eye, published in 1508. His invention involved putting a fishbowl over one’s head filled with water to refract light. This is arguably not his finest work though, in hindsight, he was onto something. René Descartes picked up DaVinci’s work in 1636, proposing … Continue reading "Contact Lenses"
Heart-Lung Machine / Cardiopulmonary BypassHeart-Lung machines temporarily do the work of the heart and lungs allowing surgeons to operate on the heart or lungs. Despite the sci-fi nature, it was a husband-wife garage invention. Background In 1931, surgeon John Gibbon lost a patient he felt sure would have lived if he could temporarily keep blood circulating and oxygenated. He … Continue reading "Heart-Lung Machine / Cardiopulmonary Bypass"
Steel ShipsWooden ships were limited in size and their hulls could be more easily penetrated than metal ships during war. Ironclad ships reduced the cost and risk of shipping by enabling larger ships that were more difficult to sink. The first known ironclad warship was The Nemesis, built for the East India Company, in 1839. Soon, … Continue reading "Steel Ships"
Strategically Addictive DrugsBackground Cigarettes are addictive. However the availability of tobacco around the world, in the early 1800s, limited them as a mass-market item. Even the largest wind-powered ships contained limited space. Filling ships with enough tobacco to addict a whole country was not viable during this period. However, another product did fill this role, opium. Tobacco … Continue reading "Strategically Addictive Drugs"
DialysisDialysis machines do the work of kidneys, cleaning the blood of impurities. After two years of experimentation on terminal patients, 15 who died, Kolff successfully kept a woman suffering renal failure alive with his “artificial kidney” dialysis machine. After WWII he donated the machines to hospitals around the world then immigrated to the US in … Continue reading "Dialysis"
Social NetworkWhen they’re not rigging elections, sowing discord, or amplifying hate social networks are a fun, simple, and convenient way to stay in touch. However, they suffer serious privacy issues under current implementations. Electronic social networks, in various forms, are older than Facebook co-founder Mark Zuckerberg. The first online bulletin-board enabling people to chat and hang … Continue reading "Social Network"
Portland Cement1843 Joseph AspdinWilliam AspdinWilliam Beverley Portland cement is modern cement. It’s admittedly dull — unless being used on dilapidated ships by mobsters for shoes — but extremely useful with more mainstream uses. Portland cement is used to make buildings, stadiums, stairs, sidewalks, foundations, and shares the unfortunate honor of being the enabler of brutalist architecture. … Continue reading "Portland Cement"
Tetraethyllead (Leaded Gasoline)Leaded gasoline prevented engine ping, making driving safer and more pleasant. Correspondingly, it also caused an enormous amount of extremely toxic pollution. Working for GM under the direct supervision of Charles Kettering at Dayton Research Laboratory, Midgley discovered the benefits of adding lead to gasoline. They named their innovation Tetraethyllead, avoiding any mention of lead, … Continue reading "Tetraethyllead (Leaded Gasoline)"
Frozen FoodFather of frozen food Clarence “Bob” “Bugs” Birdseye was first and foremost a naturalist. Birdseye collected countless insects, opened a taxidermy service in his teens, and worked at the United States Agriculture Department through his early years. While working with the Inuit in Canada he learned that fish in -40C weather would almost instantly freeze … Continue reading "Frozen Food"
Prefabricated Housing ComponentsHistory Limited amounts of prefabricated components date back to ancient times. Mesopotamian’s used burnt clay bricks. Romans utilized concrete molds for aqueducts and tunnels and William the Conqueror conquered the concept. There were movable modular buildings for industry, defense, and even hospitals. However, hand construction was the norm for the vast majority of houses and … Continue reading "Prefabricated Housing Components"
BakeliteBakelite enabled inexpensive mass production at very high tolerances where interchangeable parts matter (ex: telephones, radios, plugs, pens, wristbands, insulators, etc…). Also, it looked fun compared to organic materials in use before Bakelite. Baekeland’s Bakelite opened the “age of plastics.” It was moldable into any shape and, once molded, kept its shape. It did not … Continue reading "Bakelite"
Transatlantic CablesTransatlantic cables shrunk the world, vastly increasing the speed and lowering the cost of intercontinental communications. The first cable functioned only a few weeks. Transmissions, in Morse Code, were especially slow. Field, as a young businessman, joined a paper company that failed six months later. Despite his status as a young employee, with no responsibility … Continue reading "Transatlantic Cables"
Modern Genetically Modified Organisms (GMO’s)People have been genetically modifying plants and animals for eternity. Virtually every plant we eat is the result of genetic modification via selective breeding. Tomatoes, broccoli, cauliflower, kale, and countless others only exist due to genetic modifications. Furthermore, cows, pigs, chickens and arguably even all modern breeds of dogs are the result of genetic modification. … Continue reading "Modern Genetically Modified Organisms (GMO’s)"