Ferrofluid for Magnetic Fluid Demonstration, 50mL Base Shape_Stump Dovetail jointed hardwood test tube rack Dovetail jointed hardwood test tube rack with 12 holes arranged in two rows at 18 mm each standing wave visualizing field line geometry in tabletop demonstrations Colloidal ferrofluid of sub 10nm magnetic nanoparticles in a 50mL bottle that forms peaked spike patterns in a magnetic field
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Ferrofluid for Magnetic Fluid Demonstration, 50mL Base Shape_Stump Dovetail-jointed hardwood test tube rack