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Description: | Siphon recorder trace and pencilled annotations in Kelvin's hand with names of message senders, relay stations and message log numbers etc. MANU Unsigned. 1870 This is a siphon recorder tape dating from 1870. It is an early recording of transmissions on or via the Indo-European cable using the Steinheil plan which Kelvin used for reading the mirror galvanometer outputs on the Atlantic cable. N. B. The tape is one of eleven siphon recorder tapes, not ten as listed on the label, of the cardboard box in which they were found, and referred to by a spurious Green and Lloyd number K.C.11, one was catalogued as K.C.2. by Green and Lloyd but not numbered, it was dated ? 12.18 am 1870 and displayed in the History of the University Exhibition in the Hunterian Museum entrance hall from 1981. This roll is is one of the remaining 8 used tapes referred to as K.C.11. Two of the eleven tapes are for a different design of instrument and are unused. All of the used tapes have annotations by Kelvin which clearly show that the operators were relaying messages from various locations via the Falmouth Bombay and other Mediterranean cables. The log numbers also show that the transmissions were made shortly after the completion of the cable. They also indicate that the rolls of tape have been arbitrarily put together from shorter sections. Some of these sections of tape may have been recorded during the commissioning of the Falmouth Bombay cable or at a demonstration which took place on June 23, 1870, at the London residence of Mr (later Sir) John Pender in Arlington Street, which was witnessed by the Prince of Wales (George V) and the Duke of Cambridge, others may have been recorded when Kelvin was installing the siphon recorder on the Falmouth Malta cable a month later. The locations, of sending and relay stations, so far identified include: Eastlake -Falmouth - St Pierre - Brest - St Andre near St Nazaire - Cette-Eygun (Just north of the border between France and Spain in the Pyrenees) - Vigo (Spain), Cadiz - Sansebastian - Lisbon (Portugal) - Seville - Granada -Valencia (presumably Spain not Ireland) - Barcelona - Madrid - Gibralta - Malaga - Almeria - Huelva - Cartagena (Spain)- Malta - Naples - Monteverde - Polermo - Corfu (isle of, now Kerkira) - Messina (Sicily) - Catania (Sicily) - Pera (Kohorio Cyprus) - Alexandria - Port Said - Cairo - Tunis - Aden - Lahore (now Pakistan) - Bombay. | License: | http://www.hmag.gla.ac.uk/spirit/rights/ | Publisher: | Hunterian Museum and Art Gallery, University of Glasgow | Rights holder: | Hunterian Museum and Art Gallery, University of Glasgow | Subjects: | SCIENTIFIC COLLECTION : | Source: | Hunterian Museum | Creator: | Hunterian Museum and Art Gallery, University of Glasgow | Identifier: | http://www.huntsearch.gla.ac.uk/cgi-bin/... | Language: | en-GB | Go to resource |
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