Sound Over RadioAfter a series of other innovations involving radio, Fessenden invented sound over radio in 1906. Before then radio typically carried Morse Code signals. He created a company, NESCO, that struggled with IP, financing, and people issues. The owners, including Fessenden, hoped to sell the company to AT&T or GE but that deal did not close. … Continue reading "Sound Over Radio"
UnixUnix is a computer operating system. Among other things, it allows a computer to do many things at once. Derivatives of the original Unix include Linux, MacOS, and BSD. You’re reading this right now due to a server running Unix derivative Linux. Background Dennis Ritchie and Ken Thompson worked at Bell Labs. Thompson worked on … Continue reading "Unix"
Spinning JennySpinning Jenny’s are significantly more efficient spinning wheels, allowing wool to be produced at a much lower price. Each Jenny did the work of multiple spinners. The Jenny (slang for Engine in British English) was unwelcome in Hargreaves’ village because it caused yarn prices to decline. Chased by angry tradesmen, he fled from the spinning … Continue reading "Spinning Jenny"
Color Photography1908 James MaxwellSergey Prokudin-Gorsky Scottish physicist James Maxwell laid the groundwork for color photography. Eventually, Russian Sergey Prokudin-Gorsky perfected the technique using three exposures through a red, green, and blue filter. Recombining each exposure into one print accurately portrays color. This method, combining red, green, and blue, remains the foundation of how color is reproduced … Continue reading "Color Photography"
SonographySonography is the process of using sound waves as an imaging device, typically for medical purposes. Background Indeed, the principles of sonography come from the natural world. For example, bats and whales are mammals that use sound waves for navigation. In 1794, after performing medical studies on bats, Lazzaro Spallanzani gained a basic understanding of … Continue reading "Sonography"
Archie McCardell: Worst CEO EverArchie McCardell is the worst CEO in history. Sure, there are CEO’s who committed crimes, CEO’s who bankrupt their businesses, and CEO’s who looted their businesses. There are crooks, those who hire cronies, people who paid bribes, plenty who demanded sex or servitude, and countless sociopaths. In fairness to him, Archie did none of these … Continue reading "Archie McCardell: Worst CEO Ever"
Lithium-Ion BatteryLithium-Ion Batteries (LIBs) power everything from smartphones to power tools and electric cars. Entire cities store power generated during the day, via solar panels, for use at night from large lithium battery arrays. One of the largest factories in the world, the Tesla Gigafactory, is devoted solely to manufacturing Lithium-Ion batteries. Background An ability to … Continue reading "Lithium-Ion Battery"
BroadcastingDavid Sarnoff David Sarnoff is the father of broadcasting. Sarnoff was a Jewish immigrant who became his family’s breadwinner at age 15. He worked as a Morse Code operator, rising up the ranks to become a supervisor. Eventually, he transitioned to radio to transmit messages over long distances. Early radio technology was for point-to-point communications, … Continue reading "Broadcasting"
Antibiotics“I did not invent penicillin. Nature did that. I only discovered it by accident.” Sir Dr. Alexander Fleming Few medical discoveries impacted life expectancy and quality of life more than antibiotics. Before their discovery, simple wounds were often fatal. For example, during the US Civil War, most soldiers eventually died from infection, not from their … Continue reading "Antibiotics"
Musical Instrument Digital Interface (MIDI)MIDI allows instruments to talk to computers and to one another. As engineers began connecting instruments to computers it became clear there needed to be a standard interface so that each instrument did not need to “talk” differently to each computer. Smith, who holds degrees in computer science and electrical engineering. He created the MIDI … Continue reading "Musical Instrument Digital Interface (MIDI)"
BicycleProlific innovator Karl Drais invented the bicycle, first without pedals then, later, with. He also invented the typewriter w/ keyboard, first stenograph, and player-less piano. Drais was a civil servant ineligible for patent protection but was given patents and a pension. However, he found himself on the wrong side of a Prussian war, going so … Continue reading "Bicycle"
Mini Steel Mill (mini-mill)1969 Ken Iverson “Integrated” steel mills create steel from raw materials. They use the Bessemer process to transform raw materials into enormous amounts of steel. The plants are giant, inflexible, dirty, and expensive to erect and run. Ken Iverson worked at the Nuclear Corporation of America (eventually, Nucor), a conglomerate of assorted businesses pulled together … Continue reading "Mini Steel Mill (mini-mill)"
Planned Communities / Cookie-Cutter SuburbsLevitt produced inexpensive homes. He subcontracted building parts of the home to specialists who would do the same work repeatedly, from house to house. His methods reduced costs and increased quality: a standardized parts assembly line for houses. Levitt’s methods were copied with cookie-cutter style suburbs dotting the US especially, where people have limited choices … Continue reading "Planned Communities / Cookie-Cutter Suburbs"
Sit-Flat Paper BagsSure, sit-flat paper bags are not the condensing steam engine, the telegraph, pneumatic tools, or the dynamo generator but they represent something new: a woman entrepreneur. After realizing the hassle of bags that would not stand Margaret Knight set out to create a machine for a bag with a flat bottom. She worked with three … Continue reading "Sit-Flat Paper Bags"
ChemotherapyChemotherapy refers to a group of drugs that fight cancer. Surgery and radiation were the two common anti-cancer therapies before the discovery of effective chemotherapy. Immunotherapy was also studied but showed little promise. Background In the 1800s, scientists thought drugs might be able to fight cancer. However, none of them worked well. In the 1910s, … Continue reading "Chemotherapy"