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Alexander Graham Bell, First Telephone,1915-25
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Titel: Alexander Graham Bell, First Telephone,1915-25
Untertitel: Siehe automatische Übersetzung
Man using Alexander Graham Bell's first telephone, published in the Detroit News between 1915-25. Alexander Graham Bell (March 3, 1847 - August 2, 1922) was a Scottish-American speech therapist and inventor of the telephone. Bell followed his father and grandfather into the speech therapy profession, but also studied sound waves and the mechanics of speech. By 1871, he had moved to the US, becoming professor of vodal physiology in Boston. There he performed his experiments in converting sound waves into electrical impulses for transmission down wires. In 1876, he patented the telephone and founded what has become the AT&T company. Detroit Publishing Company, 1915-1925.
Man using Alexander Graham Bell's first telephone, published in the Detroit News between 1915-25. Alexander Graham Bell (March 3, 1847 - August 2, 1922) was a Scottish-American speech therapist and inventor of the telephone. Bell followed his father and grandfather into the speech therapy profession, but also studied sound waves and the mechanics of speech. By 1871, he had moved to the US, becoming professor of vodal physiology in Boston. There he performed his experiments in converting sound waves into electrical impulses for transmission down wires. In 1876, he patented the telephone and founded what has become the AT&T company. Detroit Publishing Company, 1915-1925.
Bildnachweis: Album / Science Source
Freigaben (Releases): ? Modellfreigabe: Nein - ? Eigentumsfreigabe: Nein
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Bildgröße: 4200 × 3360 px | 40.4 MB
Druckgröße: 35.6 × 28.4 cm | 1653.5 × 1322.8 in (300 dpi)
Schlüsselwörter: 1910ER JAHRE • BERÜHMT • BERÜHMTE PERSÖNLICHKEIT • ERFINDER • GESPRÄCH • INGENIEUR • KOMMUNIKATION • MANN • PERSON • PROMINENZ • TECHNOLOGIE • TRANSMISSION
