Alexander Graham Bell, geboren am 3. März 1847 in Edinburgh, Schottland und verstorben am 1. August 1922 in Baddeck, Kanada war ein britischer, später US-amerikanischer Audiologe, Erfinder, Großunternehmer und Befürworter der Eugenik. Es gelang ihm 1876, aufbauend auf Ideen seiner Vorgänger, das Telefon zur Marktreife zu entwickeln und ein flächendeckendes Telefonnetz in Nordamerika aufzubauen, das von seinem Unternehmen American Telephone and Telegraph Company monopolartig beherrscht wurde.
Bell Alexander Alexander Graham Bell Signed School of Vocal Physiology Diploma Large diploma on vellum, 16.5 x 13.75. Partially printed document signed by Alexander Graham Bell in full signature as Alexander Graham Bell, and dated May 22, 1877. Diploma certificate for Eva Ballard, who has satisfactorily completed the prescribed course in this School and is hereby granted the privileges of a Graduate of the School of Vocal Physiology. Lightly toned document with some fading to Bells signature which appears to ever so lightly have been touched up. Matted to an overall size of 19.5 x 16.75. The area of vocal physiology covers the parts of the body involved in producing sound with the voice. Generally when we think of the voice we think of primarily the larynx. When he was 25, Bell opened his School of Vocal Physiology and Mechanics of Speech in Boston, MA, where he taught deaf people to speak. At age 26, although he did not have a university degree, he became Professor of Vocal Physiology and Elocution at the Boston University School of Oratory. Speech had become his life: his mother had gone deaf, and Bell’s father had developed a method of teaching deaf people to speak, which Bell also taught. His research into mechanizing human speech had become a relentless obsession. Alexander Graham Bell was one of the primary inventors of the telephone, did important work in communication for the deaf and held more than 18 patents, this fantastic document was signed by Bell in same year of founding the Bell Telephone Company in 1877, and in the same year as his marriage to Mable Hubbard, a former student and the daughter of Gardiner Hubbard, one of his early financial backers. Mable had been deaf since her early childhood years. This item comes with a Certificate from John Reznikoff, a premier authenticator for both major 3rd party authentication services, PSA and JSA (James Spence Authentications), as well as numerous auction houses. WE PROVIDE IN-HOUSE SHIPPING WORLDWIDE!
Portrait of Reverend Thomas Henderson of Brantford, Ontario, who helped Alexander Melville Bell and his family immigrate to Canada after the death of two of their sons, Alexander Graham Bells brothers. Rev. Henderson became the first Bell agent in Canada after Melville Bell received 75% of the patent rights to the phone in Canada.
This is a picture that has been colorized by Michael T. Sanders of NTICentral.org. Originally, the photograph was taken in 1899 by Alexander Graham Bell at his School of Vocal Physiology and Mechanics of Speech. In the picture is Helen Keller along with lifelong companion and teacher Anne Sullivan.
In October, 1873, Bell began experiments at 292 Essex Street in Boston using vibrating reeds (R) set in motion by speaking into the mouthpiece or orifice (O). A platinum wire (P) attached to the reed (R) dipped into a cup of liquid -- in this case, mercury (M). the round mouthpiece that Bell spoke into was made of gutta percha (gg). The drawing is in the Library of Congress.
Volta Associates patent drawing from U. S. patent 341214, granted May 4, 1886, to Chichester Bell (A.G. Bells cousin) and C. S. Tainter, all Associates of the Volta Laboratory created by Alexander Bell in 1880.
Presidential decree by Jules Grévy, on the recommendation of his Minister of Foreign Affairs Jules Barthélemy-Saint-Hilaire, granting various levels of the Légion dHonneur to approximately 35 people for their services rendered at the International Exposition and Congress of Electricity, in relation to their discoveries and inventions.
Title: Marian Hubbard Daisy Bell, three-quarter length portrait, at eight years of age, standing, facing left, with dog Abstract/medium: 1 photographic print.
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Bildquelle: thumbnail.jpg Autor: Wikipedia / Lizenz: gemeinfrei
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Bildquelle: Ugly_Duckling.jpg Autor: Wikipedia / Dr. Alexander Graham Bell and Cyrus Adler, National Geographic Lizenz: gemeinfrei
Dr. Alexander Graham Bell and Cyrus Adler with their aircraft engine test boat and early example of an airboat or hydrofoil, the Ugly Duckling. This picture is taken from a January 1907 issue of National Geographic.
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