আলেকজান্ডার কত সালে টেলিফোন আবিষ্কার করে
Answers
Explanation:
Alexander Graham Bell was a Scottish-born inventor, scientist, and engineer who is credited with inventing and patenting the first practical telephone. He also co-founded the American Telephone and Telegraph Company in 1885. Wikipedia
Born: 3 March 1847, Edinburgh, United Kingdom
Died: 2 August 1922, Beinn Bhreagh
Spouse: Mabel Gardiner Hubbard (m. 1877–1922)
Inventions: Telephone, Photophone, Hydrofoil, Metal detector, HD-4, Audiometer, Tetrahedral kite
Awards: IEEE Edison Medal, Hughes Medal, Elliott Cresson Medal, John Fritz Medal, Albert Medal
Quotes
Mr. Watson — Come here — I want to see you. [First intelligible words spoken over the telephone]
When one door closes another door opens; but we so often look so long and so regretfully upon the closed door, that we do not see the ones which open for us.
Before anything else, preparation is the key to success.