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)"
Solar CellsSolar Cells produce electricity from sunlight. Early History In 1873 and 1874, scientists noticed that selenium reacted with light to produce electricity. During the 1870s William Adams and Richard Day proved that light plus selenium generated current. Eventually, famous German scientist Werner von Siemens (founder of Siemens) was excited about the possibility of solar cells … Continue reading "Solar Cells"
TelephoneThe telephone vastly lowered the cost of communication by eliminating the need for Morse Code and enabling real-time voice conversations. Bell was a Scottish immigrant, a teacher for deaf children. The inventor of the telephone would go on to marry one of his students, a then 15-year-old deaf young woman. Due to his work with … Continue reading "Telephone"
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"
- Bitcoin, Fruitcake, and Christmas Pudding
On the importance of being open to divergent ideas & non-experts. Cross-posted from the blue ocean thinking substack: https://blueoceanthinking.substack.com. About a decade ago I’d just moved with my new bride into a house we rehabbed. We owned our house mortgage-free and my work was routinely cited in leading newspapers including the New York Times, Wall Street Journal, … Continue reading "Bitcoin, Fruitcake, and Christmas Pudding"
Wire RopeWire rope is far stronger than natural-fiber rope. German mining engineer Wilhelm Albert invented wire rope about 1834. Wire rope is sometimes called Albert rope after the inventor. Early on, they were used to hoist stuff to and from silver mines in the Hartz Mountain. The first rope was three wrought-iron cables twisted around one … Continue reading "Wire Rope"
General Purpose CatalogBackground The general purpose catalog increased the selection and decreased the costs of small-town stores that could only afford to carry limited innovatory. Tiffany’s Blue Book is one of the oldest catalogs, from 1845. There were book, seed, and fabric catalogs in Europe dating back centuries. Ben Franklin created the first US catalog, for scientific … Continue reading "General Purpose Catalog"
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"
LithographyLithography allows highly detailed drawings to be inexpensively reproduced at high volumes. Before lithography, printing remained similar from Gutenberg until Senefelder’s lithographic process. Senefelder worked as an actor and playwright. Unable to earn a living, he turned to printing as a trade but could not afford the typographic fonts and materials. Frustrated, he started experimenting … Continue reading "Lithography"
Console Gaming SystemsConsole game systems are specialized computers that play games. Ralph Baer came up with the idea of a video-game system that connects to televisions in 1966. Magnavox agreed to manufacture and distribute his seventh prototype, in 1971, branded the Odyssey. Magnavox sold about 350,000 units, at the then steep price of $100, before discontinuing it … Continue reading "Console Gaming Systems"
Turing Complete Electronic Computer, ENIACBackground Commissioned in 1943, partially functional in July 1944, but not entirely finished until Feb. 1, 1946, ENIAC is the first all-electronic general-purpose Turning complete computer. Engineers built ENIAC to calculate ordinance tables. Eventually, von Neumann used the computer to perform calculations for nuclear weapons and break ENIGMA encrypted messages. Built at the University of … Continue reading "Turing Complete Electronic Computer, ENIAC"
Steel Frame SkyscraperJenney left Harvard to study architecture at the prestigious École Centrale Paris, then the world’s most prominent architectural school. He graduated one year after Gustave Eiffel, builder of the Eiffel Tower. After time spent in the army, Jenney opened an architecture firm in Chicago. Urban legend is that while speaking to his wife, she set … Continue reading "Steel Frame Skyscraper"
Relational Database Management System (RDBMS)Relational databases simplify the storage and retrieval of related information. For example, rather than storing the state a person lives in a relational database might store a number to a single list of all states. Significantly, this reduces overall storage needs and makes indexing and searching significantly easier and subsequently faster. Edgar Codd, working at … Continue reading "Relational Database Management System (RDBMS)"
AsphaltAsphalt increased the utility or roads by allowing horses to travel faster, carriages and bicycles ride more smoothly, and (later) enabled cars. Natural asphalt paved the Champs-Élysées in 1824. However, it was unstable and difficult to maintain. de Smedt created an artificial asphalt, manufactured from oil, that was more consistent and manageable than natural asphalt. … Continue reading "Asphalt"
Movable Type Printing PressBackground Gutenberg’s father was a minor royal and his mother came from a merchant family; they lived in Mainz, Germany. His father was in charge of running an ecclesiastical mint; they created coins. Growing up, Guttenberg was essentially a jeweler. Gutenberg’s father died in 1419, leaving an inheritance but also a problem. Guttenberg’s father was … Continue reading "Movable Type Printing Press"