PURPOSE: Three-dimensional field visualization of magnetic field of bar magnet.

DESCRIPTION: A cylindrical bar magnet is inserted into the center of a cube filled with a suspension of magnetic powder. When the device is shaked, mixing the magnetic powder uniformly through the liquid, and the magnet inserted, the powder lin es up along field lines, allowing three-dimensional visualization of the field of a bar magnet.

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EQUIPMENT: Three-dimensional magnetic field visualization gizmo with cylindrical bar magnet.

SETUP TIME: None.

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