Description
9A with oxidized constantan winding on a vitreous-enameled steel tube and a phosphor-bronze sliding contact
generating opposite charges along its length to compare negative and positive triboelectric behavior side by side
and iron rods for linear-expansion comparison
Long-format 150 x 10mm chrome-steel cylinder pair with half-red
3D Paramecium Sectional Anatomical Model on Base with Removable Parts, 18 x 8 inch Class_Class B 9A with oxidized constantan windingThree dimensional Paramecium sectional model with removable parts reveals cilia, oral groove, nuclei, and internal organelles for protist biology teaching.
Exchange/Return Notes
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