Gilbert's Experiment Showing Magnetic Dip

Numéro d’image : 12631348
Gilbert's Experiment Showing Magnetic Dip
Illustration from De Magnete by William Gilbert, published in 1600 showing a magnetic needle slanting at the dip angle when suspended in water with just enough buoyancy to keep it hovering. Magnetic dip, dip angle, or magnetic inclination is the angle made with the horizontal by the compass needle of a vertically held compass. This angle varies at different points on the Earth's surface. Magnetic dip results from the tendency of a magnet to align itself with lines of force. As the Earth's magnetic lines of force are not parallel to the surface, the north end of a compass needle will point downward on the northern hemisphere (positive dip) or upward on the southern hemisphere (negative dip). William Gilbert (May 24, 1544-November 30, 1603) was an English physician, physicist and natural philosopher. He is regarded by some as the father of electrical engineering.
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Crédit: Science Photo Library / Science Source
Taille de l’image : 3600 px × 3874 px
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