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Bar magnet showing magnetic field lines in 3D #4
https://d3e1m60ptf1oym.cloudfront.net/612ded9e-fb28-11e2-bbb2-cf431a9834f0/PHYSICS-MAGNETISM-bar-magnet-field-lines-4_xlarge.jpghttps://www.scientific.pictures/-/galleries/magnetism/-/medias/612ded9e-fb28-11e2-bbb2-cf431a9834f0/pricehttps://www.scientific.pictures/-/galleries/magnetism/-/medias/612ded9e-fb28-11e2-bbb2-cf431a9834f0/price