Day in Engineering History Archive - December 17
Note: These historical tidbits have been collected from various sources, mostly on the Internet. As detailed in this article, there is a lot of wrong information that is repeated hundreds of times because most websites do not validate with authoritative sources. On RF Cafe, events with hyperlinks have been verified.Please submit significant historical events and dates for inclusion in these lists. I will be glad to include your name and birthday. Please do not submit your death date ;-) A couple years ago, I began commemorating the birthdays of notable people and events with special RF Cafe logos. Where available, I like to use images from postage stamps from the country where the person or event occurred.
1797: Joseph Henry, discoverer of the principle of self-induction, and after whom the unit of inductance is named, was born. 1861: Co-discoverer of the radio reflecting properties of the ionosphere in the upper atmosphere (the Kennelly-Heaviside layer), and first to apply complex number analysis to AC circuits, Arthur Kennelly, was born. 1880: The Edison Electric Illuminating Company of NY was incorporated for the purpose of providing electric light to New York City. 1892: George Brayton, who invented the first commercially produced internal combustion engine and developed the Brayton cycle, died. 1903: Near Kitty Hawk, NC, the Wright Brothers, with Orville at the controls, made the first recorded flight in their self propelled, heavier than air machine called the Wright B Flyer. 1907: Lord Kelvin, after whom the absolute temperature scale is named, died. 1908: American chemist Willard Libby, who won the Nobel Prize for his development of carbon-14 dating, was born. 1969: The U.S. Air Force closed its Project "Blue Book" by concluding there was no evidence of extraterrestrial spaceships to support the thousands of claimed UFO sightings. 1974: The millionth trademark was registered.