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Cooke and Wheatstone Two Needle Telegraph, 1830s
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Título: Cooke and Wheatstone Two Needle Telegraph, 1830s
Descripción: Ver traducción automática
The Cooke and Wheatstone telegraph was an early electrical telegraph system invented by English inventors William Fothergill Cooke and Charles Wheatstone. The receiver consisted of a number of needles which could be moved by electromagnetic coils to point to letters on a board. This feature was liked by early users who were unwilling to learn codes, and employers who did not want to invest in staff training. The two-needle telegraph required three wires, one for each needle and a common return. The coding was somewhat different from the five-needle telegraph and needed to be learned, rather than read from a display. The needles could move to the left or right either one, two, or three times in quick succession, or a single time in both directions in quick succession. Either needle, or both together, could be moved. This gave a total of 24 codes, one of which was taken up by the stop code. Three letters were omitted: J, Q and Z, which were substituted
The Cooke and Wheatstone telegraph was an early electrical telegraph system invented by English inventors William Fothergill Cooke and Charles Wheatstone. The receiver consisted of a number of needles which could be moved by electromagnetic coils to point to letters on a board. This feature was liked by early users who were unwilling to learn codes, and employers who did not want to invest in staff training. The two-needle telegraph required three wires, one for each needle and a common return. The coding was somewhat different from the five-needle telegraph and needed to be learned, rather than read from a display. The needles could move to the left or right either one, two, or three times in quick succession, or a single time in both directions in quick succession. Either needle, or both together, could be moved. This gave a total of 24 codes, one of which was taken up by the stop code. Three letters were omitted: J, Q and Z, which were substituted
Personas: MASS
Crédito: Album / Science Source
Autorizaciones: ? Cesión de modelo: No - ? Cesión de propiedad: No
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Tamaño imagen: 3100 × 4350 px | 38.6 MB
Tamaño impresión: 26.2 × 36.8 cm | 1220.5 × 1712.6 in (300 dpi)
Palabras clave: AGUJA • ARTE • CHARLES • CIENCIA • COMUNICACION • DIBUJO • DOS • ELECTRICIDAD • EUROPEA • EUROPEAS • EUROPEO • EUROPEOS • FAMOSA • FAMOSO • FAMOSOS • GRABADO • HISTORIA • HISTORICO • ILUSTRACION • ILUSTRACIONES • IMPORTANTE • INGLES • INVENCION • LOUIS • MASS • OBRA DE ARTE • S. XIX • SIGLO XIX • SIGLO • SISTEMA • TECNOLOGÍA • TECNOLÓGICA
