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"
Highway (Limited Access Road)High-speed streets with minimal interruptions were a novel concept when first created. Highways, technically called limited access roads, have entry and exit ramps are few and located far between. Long Island, near New York, was home to the first highway in 1911. Americans continued to build highways, enacting the Federal Highway Act of 1921. Germans … Continue reading "Highway (Limited Access Road)"
Automated Flour MillOliver Evans’ mill vastly lowered the cost while increasing the quality of flour. These mills automated the milling of flour much like Arkwright automated the creation of fabric. The automatic mills were popular with farmers. Evans automated mill reduced the time and increased the quality and consistency of flour. George Washington purchased one that is … Continue reading "Automated Flour Mill"
PasteurizationFrench scientist Louis Pasteur disproved the theory of spontaneous generation, the idea that certain organisms are ever-present in nature. For example, early scientists believed fleas came from dust and maggots from dead meat absent anything else. Pasteur theorized and later proved that all organisms come from something else, that nothing exists in a vacuum. He … Continue reading "Pasteurization"
EmailRay Tomlinson would likely have lived in anonymity but for Shiva Ayyadurai, the man who claimed to invent email as a 14-year-old child. Ayyadurai is certainly bright, a Fulbright scholar who holds four degrees from MIT. He ran against Sen. Elizabeth Warren in the 2018 Senate race, attracting 91,710 votes. Ayyadurai’s claim as the inventor … Continue reading "Email"
Stock ExchangeLike insurance, regulated stock exchanges opened the door to high-quality stock offerings which allowed businesses to procure financing. That both lowered the cost of capital and also spread both the risk and returns of an investment to a wider group of people. The Antwerp, formed in 1531, traded what today is called of government debt … Continue reading "Stock Exchange"
Streaming VideoEarly streaming video was more science experiment than entertainment. Video over the internet wouldn’t become common for almost 20 more years after the first stream. Background However, computer companies, thinking about the early Internet, were interested in using it for television. These early transmissions required expensive and complicated computers and extremely expensive Internet connections to … Continue reading "Streaming Video"
Optical Disk (CD/DVD)“If it was any good, IBM would have already invented it.” James Russell CD’s and DVD’s increase convenience from analog tapes for music and video. Users may instantly jump to songs or parts of a video. Unlike tapes, CD’s and DVD’s never wear out reducing replacement media cost. David Paul Gregg In 1961, Gregg claims … Continue reading "Optical Disk (CD/DVD)"
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"
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"
RF-IDRF-ID is the technology allowing a low-power or no-power chip to communicate wirelessly. Dongles in a car that pay tolls, credit-cards that can be charged without contact, and badges that open doors are all RF-ID applications. RF-ID stands for Radio Frequency Identification and works by wirelessly transmitting what is essentially a barcode. There are two … Continue reading "RF-ID"
Stainless Steel1913 Harry BrearleyW.H. Hatfield Stainless steel is strong and has high heat resistance, just like ordinary steel. It resists corrosion, it’s formable and weldable and, unlike regular steel, does not rust. It lowered the cost of everyday items. For example, rather than silver, tableware could be made from stainless steel. Stainless steel also lowered the … Continue reading "Stainless Steel"
AirplaneWilbur and Orville Wright invented the airplane with their first flight in 1903. Urban myth describes an easy story where the bicycle mechanic brothers built an airplane from spare parts. In reality, the innovation was a long, slow, methodical, and extremely dangerous project. Background People had been building various forms of fixed-wing gliders for years. … Continue reading "Airplane"
Programmable Logic Controller (PLC)Programmable Logic Controller’s (PLC’s) are small single-purpose computers. They control machines and are common in cars. You probably own more PLC’s than any other type of computer. Today, a single-car has a myriad of PLC’s, usually networked together. PLC’s replace hard-coded wiring, automating tasks. PLC’s often read input from analog sensors. Responding to temperature, sensing … Continue reading "Programmable Logic Controller (PLC)"
Dry Cell BatteryDry cell batteries are the batteries the world is familiar with, the one’s that run portable electronics. Voltaic pile batteries, that preceded dry-cell batteries, required constant maintenance. Background To contextualize this era, the telegraph was gaining widespread adoption. However, there was no power grid to run the telegraphs at this time. The first power plant, … Continue reading "Dry Cell Battery"