Magnetic Needle with Brass Cup Bearing, 4", Carbon Steel Physics_Force & Motion The topics covered on this
Magnetic Needle with Brass Cup Bearing, 4", Carbon Steel Physics_Force & Motion The topics covered on thisUsed as a sensitive direction finder when paired with a tangent compass stand, this 4 inch carbon steel needle pivots on a brass cup bearing for low friction rotation under the local field.
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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4