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Reginald Aubrey Fessenden (October 6, 1866 – July 22, 1932) was a Canadian electrical engineer and inventor who received hundreds of patents in fields related to radio and sonar between 1891 and 1936 (seven of them after his death).
The first fishfinder, i.e. sonar device meant to find underwater fish or schools of fish, was invented in Japan in the 1940s by the Furuno brothers, who were radio repairmen. Building from the knowledge of fishermen who were able to determine the presence of fish, and their number, from bubbles, the Furuno brothers first planned to detect these ...
Hedy Lamarr (/ ˈ h ɛ d i /; born Hedwig Eva Maria Kiesler; November 9, 1914 [a] – January 19, 2000) was an Austrian-born American actress and inventor. After a brief early film career in Czechoslovakia, including the controversial erotic romantic drama Ecstasy (1933), she fled from her first husband, Friedrich Mandl, and secretly moved to Paris.
"Sonar" can refer to one of two types of technology: passive sonar means listening for the sound made by vessels; active sonar means emitting pulses of sounds and listening for echoes. Sonar may be used as a means of acoustic location and of measurement of the echo characteristics of "targets" in the water. [4]
A sonar image captured by Deep Sea Vision, an underwater scanning company, that may show the remains of Amelia Earhart’s lost Lockheed 10-E Electra aircraft in the Pacific Ocean (Deep Sea Vision)
Robert Angel is a Canadian-born American board game inventor who created the word guessing game Pictionary in 1985. [1] Since selling Pictionary, he has invented other board games and products. [ 2 ] Angel later became involved with non profit companies.
Trivial Pursuit is a board game in which winning is determined by a player's ability to answer trivia and popular culture questions. Players move their pieces around a board, the squares they land on determining the subject of a question they are asked from a card (from six categories including "history" and "science and nature").
New sonar images revealed revealed a rock formation, not Earhart’s plane. Deep Sea Vision/Facebook “The global response to our initial discovery has been truly inspiring, a testament to Amelia ...