Z-Shape Aluminum Test Tube Stand for 18 Mixed Tubes (1", 0.75", 0.5") Electricity & Magnetism_Electromagnetism & Motors Long-and-narrow 6 by 1-inch plane

Long-and-narrow 6 by 1-inch plane glass mirrors arrive as 10-packs at ~2mm thickness

Pointed three-arm metal star on a 4mm socket pivot

transparent walls revealing the valve-and-piston action of suction pumping

Glass convex mirror at 100mm diameter and 150mm focal length

allowing this tangent galvanometer to convert deflection angle into an absolute current reading

Z-Shape Aluminum Test Tube Stand for 18 Mixed Tubes (1", 0.75", 0.5") Electricity & Magnetism_Electromagnetism & Motors Long-and-narrow 6 by 1-inch planeZ shape aluminum test tube stand with 18 slots in three sizes 25 mm, 20 mm, and 15 mm providing a lightweight, corrosion resistant footprint on the laboratory bench.