6 x 4" Plastic Mirror, 10-Pack Weight_100g 10-inch vacuum pump plate on

10-inch vacuum pump plate on an aluminum base with a stopcock and rubber seal

Built for introductory electricity instruction

9A with oxidized constantan winding on a vitreous-enameled steel tube and a phosphor-bronze sliding contact

sized to fill the gap between 100-ohm and 1k values for fine-grained voltage-divider investigations

this basic Paramecium model demonstrates ciliate structure and single-celled organism anatomy for biology teaching

6 x 4" Plastic Mirror, 10-Pack Weight_100g 10-inch vacuum pump plate onDesigned for safer per desk reflection work, ten 6 by 4 inch acrylic plane mirrors arrive as a 10 pack, lightweight and shatter resistant for image formation and ray tracing experiments.