Magnetical Instructions: For the Use of Portable Instruments Adapted for Magnetic Surveys and Portable Observatories, and for the Use of a Set of ... Forms for the Registry of Magnetical and M - Softcover

Riddell, C. J. B.

Softcover

ISBN 10: 1332036163 ISBN 13: 9781332036165

Verlag: Forgotten Books, 2015

Inhaltsangabe

Excerpt from Magnetical Instructions: For the Use of Portable Instruments Adapted for Magnetic Surveys and Portable Observatories, and for the Use of a Set of Small Instruments Adapted for a Fixed Magnetical Observatory; With Forms for the Registry of Magnetical and Meteorological Obervations

The elements on which the determination of the Earth's Magnetic force is usually based, are the declination, the inclination or dip, and the intensity the declination is the angle which the magnetic axis of a freely suspended magnet, or the line of the magnetic meridian, makes with the true or astronomical meridian the inclination is the angle by which one of the extremities of a dipping needle, or magnet freely suspended by its centre of gravity, dips below the horizon; the intensity is the force exerted on a dipping needle (or magnet so suspended) to retain it in its position of equilibrium, or the power with which, when withdrawn from this position, it tends to revert to it.

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Details zur Ausgabe

• Verlag: Forgotten Books
• Erscheinungsdatum: 2015
• Sprache: Englisch
• ISBN 10: 1332036163
• ISBN 13: 9781332036165
• Einband: Taschenbuch
• Anzahl der Seiten: 176
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