Ocean Magnetic Observations, 1905-1916

Angebote / Angebote:

Excerpt from Ocean Magnetic Observations, 1905-1916: And Reports on Special ResearchesPassing over various subsequent expeditions we come to the most serious and first really important undertakings for magnetic science in general, viz those of the Erebus, the Terror, and the Pagoda, from 1840-45, chiefly in the southern oceans. Here we have the first elaborate attempt at determinations of the three magnetic elements at sea, the Fox dip-circle for measuring the magnetic inclination and intensity at sea having just been devised. This most carefully executed work was done under the direction of Sabine, the famous English magnetician, who did so much for the advancement of magnetic science. Not only was the work ably directed, but the commanding officers of the vessels, one of whom was Captain Ross, the discoverer of the North Magnetic Pole, were most zealous and painstaking. The attempt was made to obtain full series of observations daily, and these were secured at times under great physical difficulties, as, for instance, in the Antarctic regions. The ships were repeatedly swung, and every attempt was made to determine accurately the deviation constants.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.