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Alexander Graham Bell (/ ˈ ɡ r eɪ. ə m /, born Alexander Bell; March 3, 1847 – August 2, 1922) [4] was a Scottish-born [N 1] Canadian-American inventor, scientist, and engineer who is credited with patenting the first practical telephone.
That first cell phone began a fundamental technology and communications market shift to making phone calls to a person instead of to a place. [ 6 ] [ 19 ] Bell Labs had introduced the idea of cellular communications in 1947, but their first systems were limited to car phones which required roughly 30 pounds (12 kg) of equipment in the trunk. [ 21 ]
Edison in 1861. Thomas Edison was born in 1847 in Milan, Ohio, but grew up in Port Huron, Michigan, after the family moved there in 1854. [8] He was the seventh and last child of Samuel Ogden Edison Jr. (1804–1896, born in Marshalltown, Nova Scotia) and Nancy Matthews Elliott (1810–1871, born in Chenango County, New York).
View from the Window at Le Gras 1826 or 1827, believed to be the earliest surviving camera photograph. [1] Original (left) and colorized reoriented enhancement (right).. The history of photography began with the discovery of two critical principles: The first is camera obscura image projection; the second is the discovery that some substances are visibly altered by exposure to light. [2]
"When we built that camera, the argument was over," Sasson told The New York Times. "It was just a matter of time, and yet Kodak didn't really embrace any of it. "It was just a matter of time, and ...
In the 1830s, the English scientist William Henry Fox Talbot independently invented a process to capture camera images using silver salts. [ 12 ] : 15 Although dismayed that Daguerre had beaten him to the announcement of photography, he submitted a pamphlet to the Royal Institution entitled Some Account of the Art of Photogenic Drawing on 31 ...
This Glasgow scientist seems to have been the first to suggest the usage of a manometric gas flame for optical transmission, demonstrated at a meeting of the Glasgow Philosophical Society; "The History of selenium and its action in the Bell Photophone, with description of recently designed form", Proceedings of the Philosophical Society of ...
Gregorio Ynciong Zara (8 March 1902 – 15 October 1978) [1] was a Filipino engineer, physicist, a National Scientist, and inventor. He was known as the father of videoconferencing [2] for having invented the first two-way videophone.