File:TelegraphicPlateau.jpg

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Deutsch: Seite aus der US-amerikanischen Wochenzeitung Harper’s Weekly mit Darstellungen des Reliefs des Zentralatlantiks (oben Ost-West-Profil entlang des „Telegraph Plateau“ zwischen Trinity Bay in Neufundland und Valentia Bay in Irland; unten Nord-Süd-Profil mit den Kapverden, Azoren und dem „Telegraph Plateau“) und einem frühen Sedimentprobennehmer. Der Probennehmer besteht aus einem Stab B, dessen unteres Ende hohl ist. Auf dem Stab „aufgefädelt“ ist eine durchbohrte Kanonenkugel A, die durch die Schlinge D gehalten wird, die an beweglichen Haken am oberen Ende des Stabes befestigt sind. Bohrt sich der von der Kanonenkugel beschwerte Stab ins Sediment und bleibt schließlich stecken, klappen die Haken nach unten und die Schlingen fallen ab. Der Stab mit der Sedimentprobe kann dann aus der Kanonenkugel herausgezogen und zur Oberfläche hinaufgeholt werden.
English: Page of the American weekly newspaper Harper’s Weekly with cuttings of the bottom morphology of the central Atlantic Ocean (top: East-West profile along the “Telegraph Pleateau” between Trinity Bay, Newfoundland, and Valentia Bay, Ireland; bottom: North-South profile with Capverdes, Azores, and “Telegraph Plateau”) and an early sediment sampling device. The device conists of a rod B that is hollow at its lower end. The rod is put into a cannon ball which is pierced by a bore. The cannon ball is hold by a sling which, in turn, is hold by movable hooks at the upper end of the rod. When the device reaches the ground and eventually gets stuck into the sediment the hooks will flap down and release the sling. Then the rod with the sediment sample can be pulled out of the cannon ball and hauled up to the surface.
Date
Source The Telegraph Plateau. (p. 548) in: Harper’s Weekly. Vol. 2, No. 87, 28 August 1858 (reprinted on p. 5 in the Harper’s Weekly Telegraph Supplement of 4 September 1858)
Author Unknown authorUnknown author

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  • 2005-05-17 06:42 MCMoses 500×255× (10848 bytes) Karte der verlegten Tiefseekabel

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current19:58, 31 October 2019Thumbnail for version as of 19:58, 31 October 20192,059 × 3,026 (1.98 MB)Gretarsson (talk | contribs)low-resolution file was replaced by a whole much higher resoluted page of the Harper’s Magazine from Issue No. 87 (28 August 1858), which was reprinted in the “Telegraph Supplement” of 4 September 1858
19:16, 12 April 2012Thumbnail for version as of 19:16, 12 April 2012500 × 255 (11 KB)File Upload Bot (Magnus Manske) (talk | contribs)Transfered from de.wikipedia by User:wdwd using CommonsHelper

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