Surgical DisinfectantSurgical disinfectant vastly reduces the risk of infection and subsequent disease and death. Lister, building on the work of Pasteur and Semmelweis, insisted that surgery and surgical equipment be cleaned with carbolic acid, an early attempt at sterilization. Before Lister, surgeons would not change their clothes: more blood showed more experience. Semmelweis advanced similar ideas, … Continue reading "Surgical Disinfectant"
RocketsIn 1914, Goddard patented the first rocket and, in 1926, Goddard fired the first liquid-fueled rocket. Goddard predicted rockets would one day enable space flight, a prediction widely ridiculed as science fiction. Eventually, in 1929, Oberth fired his modern liquid-fueled rocket. Oberth eventually taught Wernher von Braun, who perfect modern rocketry. In time, both Oberth … Continue reading "Rockets"
Combine HarvesterBackground Before the combine harvester farmers would need to hire groups of people to harvest crops before they rotted. Since there were only so many people available, the ability to harvest limited the volume of crops that could be grown. The harvester fixed that, doing the work of many people at once. This enabled the … Continue reading "Combine Harvester"
Electronic PaperElectronic paper is an ultra-low-power display that requires electricity only to change. ePaper is useful for eBook readers, grocery store price tags, and other displays that need not rapidly change and cannot be plugged in. Electronic paper is a lesser-known Xerox PARC invention. Helping cement their reputation as the Worst Managers of All Time, Xerox … Continue reading "Electronic Paper"
SCUBAEarly bell suits that contained air hoses allowed people to function underwater. These bell diving suits were heavy and dangerous. Later systems relied upon compressed air and regulators, yet these were still large and impractical. In 1942 Nazi-occupied France, Frenchmen Cousteau and Gagnan invented the first practical underwater breathing apparatus, Aqua-Lung. In their system, called … Continue reading "SCUBA"
Transistor RadioDeveloped in 1947 but commercialized in 1954, transistor radios are small. Battery-operated portable radios that fit in a pocket. They rely on transistors rather than vacuum tubes. There were several attempts to build radios with transistors but none were optimal until 1954. Eventually, a Texas Instruments team invented the Regency TR-1, the first radio miniaturized … Continue reading "Transistor Radio"
Mass Market Microcomputer with DisplayThe Apple II is the first real mass-market microcomputer. It did anything it was programmed to do, and people programmed it to do all sorts of things. Spreadsheets, invented on the Apple II, drove enormous sales to the business market. The computer also featured several word processors and a sizable game library. Jobs & Woz … Continue reading "Mass Market Microcomputer with Display"
Nuclear WeaponsCaltech professor Robert Oppenheimer lead a team of researchers at Los Alamos to invent the atomic bomb. Along with some of the most noteworthy physicists in the world, he oversaw the development of the nuclear bomb. The Manhattan Project, like the code-breaking at Bletchley Park, was intensely secretive. Los Alamos, in New Mexico, was built … Continue reading "Nuclear Weapons"
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)"
Wireless Remote Control1898 Nikola Tesla Only four years after the invention of radio and over a decade before voice was transmitted over radio, Nikola Tesla invented the remote control. In 1898, he demonstrated his remote control with a radio-controlled boat at an exhibition in Madison Square Garden. Realizing that people would not understand the idea of a … Continue reading "Wireless Remote Control"
SupertankersSupertanker ships transport enormous amounts of oil. They were invented by Ludvig and Robert Nobel, brothers of Alfred Nobel, the inventor of dynamite who founded and funded the Nobel Prize. “Dy-na-mite!” said Ludvig and Robert Nobel’s brother, Alfred, when they shared their invention, an enormous ship to move oil. OK, we’re 99.99% sure that didn’t … Continue reading "Supertankers"
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"
Human Genome ProjectThe Human Genome Project mapped the human genome, the DNA map of human life. It enables future genetic technologies that can cure disease, preemptively find problematic genes, or even allow genetic manipulation (designer babies). Francis Watson was the initial lead. He is the Nobel Prize winning co-discoverer of DNA sequencing. As the project gained in … Continue reading "Human Genome Project"
Safety ElevatorBefore Otis’ elevator buildings were effectively limited in height. Builders could build higher, but nobody was willing to climb too many stairs. Otis’ safety elevator reduced the cost of living and working at high levels in buildings. Background While working to clean an old factory, Otis created a safety catch for hoist, a platform to … Continue reading "Safety Elevator"
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"