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Johann Philipp Reis, Telephone,1860
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Título: Johann Philipp Reis, Telephone,1860
Descripción: Ver traducción automática
The Reis telephone was a rudimentary telephone invented by Johann Philipp Reis (German, 1834-1874). First built in 1860, it was based on the principle of magnetostriction. Wire coiled around iron cores and needles caused contraction when a current flowed, producing an audible click in a resonator. However, the sounds were faint, and there was little interest in the invention. The practical development of the telephone was achieved by others, such as Alexander Graham Bell.
The Reis telephone was a rudimentary telephone invented by Johann Philipp Reis (German, 1834-1874). First built in 1860, it was based on the principle of magnetostriction. Wire coiled around iron cores and needles caused contraction when a current flowed, producing an audible click in a resonator. However, the sounds were faint, and there was little interest in the invention. The practical development of the telephone was achieved by others, such as Alexander Graham Bell.
Crédito: Album / Science Source
Autorizaciones: ? Cesión de modelo: No - ? Cesión de propiedad: No
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Tamaño imagen: 3000 × 1924 px | 16.5 MB
Tamaño impresión: 25.4 × 16.3 cm | 1181.1 × 757.5 in (300 dpi)
Palabras clave: ALEMAN • ALEMANA • ALEMANES • ARTE • BLANCO Y NEGRO • CIENCIA • COMUNICACION • COMUNICACIONES • GRABADO • HISTORIA • ILUSTRACION • ILUSTRACIONES • INVENCION • PRIMERO • SIGLO XIX • TECNOLOGÍA
