Cotton GinWhitney’s innovation vastly lowered the price of cotton. Before Whitney’s cotton gin, producing cotton was economically inefficient because of the enormous cost to separate cotton from seeds. After the innovation, cotton became a profitable crop. Background Coming of age during the Revolutionary War, Whitney made a nail company, at the age of 15. Later, he … Continue reading "Cotton Gin"
Liquid Crystal Display (LCD)Liquid-Crystal Displays (LCD’s) enable flat-screens with relatively low-power usage. In 1888, Friedrich Reinitzer discovered liquid crystals in Germany. However, there was no use and the technology lay dormant for about 80 years. In 1968, RCA’s George Hailmeir presented the first working LCD display. However, it only worked at 80°C (176°F) leaving it impractical for anything … Continue reading "Liquid Crystal Display (LCD)"
LASERLASER’s allow light to be intensely focused. There are many uses, from reading digital media at low power to cutting at higher powers. Countless applications rely on LASER technology. In 1957, Arthur Schawlow and Charles Townes, of Bell Labs, worked on an infrared LASER, called an “optical MASER.” They patented the invention in 1958. In … Continue reading "LASER"
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)"
Aspirin1899 Arthur EichengrünFelix Hoffman Aspirin is often referred to as a miracle drug. The inexpensive medicine relieves pain without addiction, reduces fever, and even helps prevent heart attack. There is some evidence Aspirin even prevents cancer. Aspirin is the distilled and purified version of medicine known since ancient times. Hippocrates, he of the Hippocratic Oath, … Continue reading "Aspirin"
MinicomputerComputers were big. They were enormously expensive and physically giant machines. IBM’s nickname from this time was Big Blue on account of the size of the company and their computers. History Olsen developed, by current standards, small transistor-based computers at MIT. He left in ’57 to form a company, the Digital Computer Corporation. It was … Continue reading "Minicomputer"
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"
Wind-Driven SawmillCornelis Corneliszoon van Uitgeest invented a sawmill driven by a windmill. It cut wood about 30 times faster than sawing by hand. Corneliszoon received a patent for his wind-driven sawmill. Workers found the mill during a 2004 excavation. The windmill used a crankshaft to convert the steady wind into the up-and-down motion necessary to saw … Continue reading "Wind-Driven Sawmill"
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)"
Voice Over IP (VOIP)Voice Over IP (VOIP) transmits voice calls over the internet, allowing people to speak to one another. Invented in 1995, VOIP came about after countless seemingly more complex inventions including web-based video. Interestingly, the likely reason for the late invention date is incentives. Businesses believed that the internet would work well for broadcasting, displacing other … Continue reading "Voice Over IP (VOIP)"
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)"
MotorcycleAfter engineering a buggy that runs on four wheels it didn’t take long to realize a motorized bicycle would work well. Motorcycles are more efficient than cars: they use less fuel and take less space. However, they’re more dangerous than cars, offering far less protection in the event of a crash. They’re also fun. In … Continue reading "Motorcycle"
Time-Sharing/Multitasking ComputerEarly Computers Early computers stored programs and data on punch cards. Most cards contained 80-characters, which is why early terminal programs were typically 80-characters per line. Punch cards are exactly what they sound like, physical cards. Each card is one line of a computer program or one piece of data. As users typed, a machine … Continue reading "Time-Sharing/Multitasking Computer"
Breach Loaded FirearmsFlintlock guns required the user to pour gunpowder into the barrel of the weapon, stamp it down, add a bullet, then carefully pick the whole thing up and fire it. By the time all that finished, soldiers could be chased down and stabbed with a knife. Breach-loading firearms opened the rifle near the back. They … Continue reading "Breach Loaded Firearms"
Mass-Scale DesalinationReverse osmosis enables large-scale desalination of seawater, efficiently transforming it into drinking water. People have been trying to desalinate seawater into drinking water for millennia. Firstly, Aristotle and other ancient Greeks unsuccessfully attempted to desalinate seawater. Eventually, by the 16th century, ship-based evaporation desalination systems created potable water. In time, by 1955, the first multi-stage … Continue reading "Mass-Scale Desalination"