HelicopterIgor Sikorsky was a Russian aircraft designer. He created various aircraft for the Russian army, including early helicopters. No sooner did the Bolshevick’s take over than Sikorsky fled to the US after the Russian Revolution in 1919. In the US, he created a business, Sikorsky Aircraft Corporation, designing aircraft. His first American airplane was a … Continue reading "Helicopter"
Chemical WarfareChemical warfare refers to using chemicals as a weapon of mass destruction, killing many people at once. Fritz Haber, the inventor of the ammonia extraction process, is also the father of modern chemical warfare. On Jan. 31, 1915, Germany used a type of tear gas on allied troops. Due to the temperature, the chemicals failed … Continue reading "Chemical Warfare"
Credit UnionLet it not be forgotten that a credit union is, above all else, an association of people, not dollars. Alphonse Desjardins Banks at the turn of the 20th century were for rich people. A.P. Giannini founded his Bank of Italy, later renamed Bank of America, in 1904 as a bank for everybody else. But it … Continue reading "Credit Union"
Induction Motors“Intelligent people tend to have less friends than the average person.” Nikola Tesla There are two types of electricity, Direct Current (AC) and Alternating Current (AC). Vastly simplifying, in DC electrical systems the current flows in one direction, like current in a stream. This makes designing certain appliances easier; the motor turns in the direction … Continue reading "Induction Motors"
Steel ShipsWooden ships were limited in size and their hulls could be more easily penetrated than metal ships during war. Ironclad ships reduced the cost and risk of shipping by enabling larger ships that were more difficult to sink. The first known ironclad warship was The Nemesis, built for the East India Company, in 1839. Soon, … Continue reading "Steel Ships"
Modern Genetically Modified Organisms (GMO’s)People have been genetically modifying plants and animals for eternity. Virtually every plant we eat is the result of genetic modification via selective breeding. Tomatoes, broccoli, cauliflower, kale, and countless others only exist due to genetic modifications. Furthermore, cows, pigs, chickens and arguably even all modern breeds of dogs are the result of genetic modification. … Continue reading "Modern Genetically Modified Organisms (GMO’s)"
DNA SequencingDNA sequencing creates a map of DNA. The process reads DNA like a computer reads a hard drive. Eventually, the technology will allow scientists to understand and manipulate life functions. In 1955, Sanger discovered how to sequence DNA, which would later win him the Nobel Prize. He is one of four people in the world … Continue reading "DNA Sequencing"
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"
Graphic User InterfaceComputers “must be learnable in private… Kindness should be an integral part.” Alan Kay The Graphic User Interface (GUI) consists of windows, folders, icons, mice, etc… It enables ordinary people to use computers. Xerox PARC’s GUI vastly simplified computer use and increased productivity by making computers easy and fun to use. Like the internet itself, … Continue reading "Graphic User Interface"
Rechargeable Battery1859 Frenchman Gaston Planté invented the lead-acid rechargeable battery. In the early years, his battery lacked commercial value. Planté’s battery stored electricity and recharged easily but tended to release the electric in enormous bursts that, at the time, offered limited utility value. Before the Planté battery was the Voltaic Pile and later derivatives. These were … Continue reading "Rechargeable Battery"
Stock Ticker / Ticker TapeBoth the ticker and ticker tape lowered the cost of transmitting stock prices by eliminating the need for a person to translate them to and from Morse Code. Subsequently, this innovation served as a bridge from specialists required to send and receive telegraph messages to plain-text transmissions. Edward Calahan saw people rushing from the floor … Continue reading "Stock Ticker / Ticker Tape"
Binary TheoryIn 1935 theoretical mathematician Alan Turing proposed a machine that would use a series of on and off switches that could represent or compute anything. Turing joined the war effort to build mechanical computers that decrypted Enigma messages. Eventually, he helped with electronic computers. His theories underpin all modern computers. Subsequently, Turing envisaged reasonably sentient … Continue reading "Binary Theory"
Electronic Airline Reservation System (SABRE)As the Cold War heated up during the 1950s, the United States installed an enormous number of missiles, radars, and nuclear weapons to track and respond to nuclear war. WWII radars were good enough for propeller planes but the delay between detection and analysis proved too slow for jet engines and missiles. SAGE As the … Continue reading "Electronic Airline Reservation System (SABRE)"
Three Phase PowerOne extra wire allows transmission of triple the amount of electricity via three-phase power. With three wires rather than two, electrical operators can transmit triple the electricity. “Polyphase” is another term for three-phase power. Three phase power usually transmits enormous amounts of electricity. These are the large transmission lines on tall polls. Electricity is converted … Continue reading "Three Phase Power"
Clusters of Regularly Interspaced Short Palindromic Repeats (CRISPR)CRISPR is like a word processor for DNA. It allows easy and inexpensive gene editing. Edited genes are passed to future generations, making mutations permanent. Doudna and Charpentier Doudna and Charpentier worked on and invented the technology as a team. First, they worked on plants and, later, on animals. History becomes murkier with the involvement … Continue reading "Clusters of Regularly Interspaced Short Palindromic Repeats (CRISPR)"
