Compass and magnet. The compass has a free-swinging magnetic needle (green) pointing to a dial. The needle will normally align itself with the local l

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Compass and magnet. The compass has a free-swinging magnetic needle (green) pointing to a dial. The needle will normally align itself with the local lines of magnetic force to indicate the direction of the Earth's north and south magnetic poles. However, a nearby magnet provides a stronger local magnetic influence than that of the Earth, and the needle lines up with the magnet's field, the north of the needle being repelled by the north pole of the magnet.

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Size: 6133px × 4094px
Photo credit: © CORDELIA MOLLOY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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