Gas MaskGas masks lower the risk of damage for firefighters and soldiers. Garret Morgan, the son of freed slaves, developed an early gas mask for use in fires. Hoses dragged along the ground where air was cleaner, because smoke rises. There was also a 15-minute air supply for when air became hopelessly polluted. Patented in 1914, … Continue reading "Gas Mask"
Magnetic Resonance Imaging (MRI)MRI allows physicians to see and diagnose soft tissue without surgery. Background MRI is one of these cases where everybody argues somebody else invented it for patent priority. However, courts and historians find that physician Raymond Damadian was first to make an MRI that scans people (prior MRI’s would scan small pieces of organic material). … Continue reading "Magnetic Resonance Imaging (MRI)"
Central BanksBackground The first central bank was Swedish Riksbank. The Swedish government chartered it to act as a clearinghouse for commerce. In 1694, the Bank of England was founded. It’s primary purpose was to purchase government debt. Napoleon chartered the Banque de France to stabilize currency after the French Revolution. Early central banks, and their modern … Continue reading "Central Banks"
Controlled Drug DeliveryControlled drug delivery is a simpler and more convenient way to slowly release drugs than taking low-dose pills or injections at frequent intervals. Additionally, it also lowers the risk of incorrect dosage. Zaffaroni invented controlled (slow) release drugs, mimicking the way the body releases hormones. Eventually, he created many pharma companies that went on to … Continue reading "Controlled Drug Delivery"
JukeboxThe Jukebox is an automated coin-operated music player which plays individual songs. The differentiating factor of the Jukebox from a simple coin-operated record player is the ability of an automated machine to replace live music in a restaurant or bar. Background Louis Glass and William Arnold modified Edison’s record players to operate by coins. These … Continue reading "Jukebox"
Braille Writing1829 Louis BrailleCharles Barbier Most of the innovations on Innowiki are for-profit inventions. While it could be argued that Braille’s writing technique opened new markets, the size of that market was limited to blind people. However, the impact of the innovation — a process enabling the disabled to regain one of the most important human … Continue reading "Braille Writing"
Electron MicroscopeElectron microscopes enable scientists to see extremely small particles. In the 1920s, scientists discovered that electrons in a vacuum behave much like light except they can be manipulated with electric and magnetic fields. Since electrons curve around particles, these electron microscopes are vastly more powerful than traditional light-based microscopes. Ruska invented the electron microscope at … Continue reading "Electron Microscope"
Milking MachineMilking machine safely and effectively milk cows. They vastly reduce the cost of milking a cow. Background Nobody likes milking cows by hand. It’s time consuming, laborious, and they poop. Early attempts at something better involved inserting catheters that would let the milk slide out. However, if not used perfectly these hurt the animal. Catheters … Continue reading "Milking Machine"
Steam Engine (Newcomen)The Newcomen steam engine removed water from mines. It worked but was extremely inefficient. Steam was not recycled (re-condensed) so the Newcomen engine required an enormous amount of coal to continually boil water. When used at a coal mine, where scrap coal was essentially free, this cost less than having workers remove water by the … Continue reading "Steam Engine (Newcomen)"
24-Hour NewsBroadcast news was a staid affair, a half-hour visual summary showing events of the day. American networks NBC, ABC, and CBS each had a newscast and each aired at the same time. Ted Turner inherited an outdoor advertising company. To build more advertising outlets he purchased a third-rate television station running old TV series and … Continue reading "24-Hour News"
Personal Portable Music PlayerBattery operated portable personal music players are fun, enabling users to build a cocoon of their own music. Portable radios and stereos date back to the invention of the transistor. Over time, these grew in size and power. Enormous stereos run from batteries, “boom boxes,” were commonplace. However, boom boxes played music from speakers and … Continue reading "Personal Portable Music Player"
Integrated Circuits (Microchips)In early electronic computers, each circuit involved a vacuum tube. They were large, relatively slow, and consumed a lot of power. Shockley, Brattain, and Bardeen created the semiconductor. Their circuits eliminated the need for vacuum tubes. Kilby and Noyce discovered that semiconducting material held burned-in semiconductor circuits. Their printed circuits worked like the much larger … Continue reading "Integrated Circuits (Microchips)"
Color MoviesThough not the first color movie, The Wizard of Oz left an indelible mark. Swapping from the old world of black and white to color the world flew over the rainbow. Movies have never been the same since. Kalmus, an MIT alum, created a process for color movies and ramped up a company, Technicolor. Initially, … Continue reading "Color Movies"
Mobile PhoneMobile phones allow calls from anywhere that’s within range of a tower. They vastly increase productivity, convenience, lower the risk of a missed call, and they’re fun. Mobile phones work by beaming voice (and, later, data) to a tower, seamlessly switching from tower-to-tower as the person moves. Cooper Creates the Mobile Phone Battery-operated gadget maker … Continue reading "Mobile Phone"
Transistor RadioDeveloped in 1947 but commercialized in 1954, transistor radios are small. Battery-operated portable radios that fit in a pocket. They rely on transistors rather than vacuum tubes. There were several attempts to build radios with transistors but none were optimal until 1954. Eventually, a Texas Instruments team invented the Regency TR-1, the first radio miniaturized … Continue reading "Transistor Radio"
