Multi-Shot Revolver“God created men equal, Sam Colt made them equal.” Samuel Colt Overview Colt’s revolver reduced the cost and risk of settling the US. Before the revolver, Native Americans could shoot arrows faster than pioneers could reload muskets, making westward travel and settlement dangerous. The Colt revolver reversed the dynamics and is widely credited with winning … Continue reading "Multi-Shot Revolver"
Moldboard PlowTraditional plows would become gunked-up with soil, forcing farmers to repeatedly stop and clear away soil. Moldboard plows repel soil, lowering the cost of farming. John Deere was an ordinary blacksmith, creating pitchforks and other common farm instruments. Farmers complained about the time wasted stopping and clearing their plows. Deere thought there must be a … Continue reading "Moldboard Plow"
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"
Electronic Cipher (Enigma)Enigma is a cipher, a machine that implements an algorithm to encrypt and decrypt messages. On Feb. 23, 1918, Scherbius applied for his first patent for what would become the most well-known cipher machine in history, the Enigma. Initially marketed for commercial purposes the German army modified a version for military encryption in 1926. Nazis … Continue reading "Electronic Cipher (Enigma)"
Programmable Machine (Jacquard Loom)The Jacquard Loom is a seminal invention in the history of modern computers. Automation technology existed long before the loom but the automation was simple repetition. For example, pull the loom up, push a thread through, pull the loom down, and push another thread through then repeat. Different color threads might be used on different … Continue reading "Programmable Machine (Jacquard Loom)"
Microwave OvenPercy Spencer is a self-taught engineer who did not finish even primary school. He self-taught himself math, science, and electrical engineering while standing guard on ships in the Navy. Before, during, and after WWII, Spencer worked on top-secret magnetrons, the high-powered electrical devices at the heart of a RADAR system. One day he noticed that … Continue reading "Microwave Oven"
Wi-FiIn 1941, Hollywood actress Hedy Lamarr devised a system and submitted a patent for radio signals that changed frequencies. Background Hedwig Eva Maria Kiesler (Heidi Lamar) was born in Vienna. She is most famous as the first woman to appear nude in a mainstream film. In the same movie, she was also the first woman … Continue reading "Wi-Fi"
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"
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"
Optical Character Recognition (OCR)Optical Character Recognition (OCR) technology increases productivity and decreases cost by alleviating the need for humans to type printed information into computers. It also reduces the risk of typos. David Shepherd’s OCR machine was used in few places. Most notably, Reader’s Digest used it to manage subscription information, transforming printed material to punch cards. Other … Continue reading "Optical Character Recognition (OCR)"
Autonomous Vehicles (Self-Driving Cars)DARPA, the US government agency that invented the internet (among other things) created a contest to build a self-driving car. The first DARPA Grand Challenge, in 2004, was a 150 mile (240 km. route). The robot-car that drove the furthest before breaking down, built by Carnegie-Mellon University (CMU), lasted 11.78km. Undeterred, DARPA tried again. Subsequently, … Continue reading "Autonomous Vehicles (Self-Driving Cars)"
Polio VaccineAppearing out of nowhere in the late 1900s, polio terrified American communities in the early 20th century. 1 in 200 infections led to irreversible paralysis. Of those, 5-10% died from breathing paralysis. Iron lungs that breathed for polio sufferers also trapped them. The virus paralyzed President Roosevelt. No sooner did the virus appear than entire … Continue reading "Polio Vaccine"
Electric Arc WeldingElectric arc welding lowered the price of joining metal pieces, eventually enabling the construction of much larger structures. Russians love to build giant things, bolshoya as they say in Russian. Therefore, it makes sense that it was a Russian, Benardos Nikolai Nikolaevic, who realized in 1881 that two metal pieces can be tightly joined together … Continue reading "Electric Arc Welding"
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"
Commercial Business Computer (EDVAC/UNIVAC)Mauchly and Eckert, inventors of the ENIAC, set out to create a commercial computer. They worked with government officials who needed fast computing, including military and census officials. Eventually, their employer, the University of Pennsylvania’s Moore School of Engineering announced an intent to keep all patents produced by faculty. Henceforth, the two promptly resigned and … Continue reading "Commercial Business Computer (EDVAC/UNIVAC)"
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