Ferrofluid for Magnetic Fluid Demonstration, 50mL Glass Dishes & Jars_Glass Petri Dishes Four vinyl-coated prongs grip flasks

Four vinyl-coated prongs grip flasks and burettes up to 4

and acceleration components

and 4-pole armature configurations on the same motor frame by swapping interchangeable enameled-copper armatures past a permanent bar magnet on a disc commutator

Built for obstetric instruction

Depicts Earth's internal layers plus active and passive margins

Ferrofluid for Magnetic Fluid Demonstration, 50mL Glass Dishes & Jars_Glass Petri Dishes Four vinyl-coated prongs grip flasksColloidal ferrofluid of sub 10nm magnetic nanoparticles in a 50mL bottle that forms peaked spike patterns in a magnetic field, visualizing field line geometry in tabletop demonstrations.