Verwandte Artikel zu POPULAR ESSAYS ON THE MOVEMENTS OF THE ATMOSPHERE
Inhaltsangabe
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1882 edition. Excerpt: ... any doubt. No one, ho.vever, has ever given any satisfactory reason why these gyrations in the one hemisphere are always sinistrorsal and in the other dextrorsal. It is true, Mr. Redfield endeavors to account for the sinistrorsal gyrations of the hurricanes and storms which proceed from the Gulf of Mexico towards Newfoundland, by means of the peculiarities of the aerial currents in the region of the Gulf and the adjacent coast of the Pacific. But if there are the same kind of gyrations over the whole hemisphere, it is evident that the cause which produces them must be as extended as the hemisphere itself. It has also been suggested that this tendency to a distinct kind of gyration in each hemisphere, may be owing to the magnetism of the air.t We shall now undertake to show that there cannot be a rushing of air from all sides towards a center, on any part of the earth except at the equator, without producing a gyration, and that the tendency to a distinct kind of gyration in each hemisphere, is owing, neither to any peculiarities of the winds or aerial currents, nor to the mysterious agent of magnetism, but that it results, as a necessary consequence, from the action, upon the atmosphere, of the four forces which we have taken into consideration in the first part of this essay. It has been shown that when a particle of air receives a motion toward the poles it is deflected toward the east, as in the passage-winds, but when it receives a motion toward the south, there is a force which also turns it towards the west, as in the trade-winds. It has likewise been shown that when the air has a relative motion east, it haw a tendency, on account of the greater centrifugal force, to move also towards the south, but that when it has a relative...
Die Inhaltsangabe kann sich auf eine andere Ausgabe dieses Titels beziehen.