Simple Tangent Galvanometer Light & Optics_Reflection & Refraction glass blocks

glass blocks

Double-vessel copper calorimeter set with a 75 by 50mm inner cup on cork supports inside a 100 by 75mm outer shell and a slotted lid

and four lenses for focal-length investigations

Two-hundred-fifty-gram push-pull balance in an acrylic tubular body

this foam-cut carrying case protects individual bones in molded slots sized to fit most full-size skeleton sets

Simple Tangent Galvanometer Light & Optics_Reflection & Refraction glass blocksUsed to measure current by reading compass needle deflection inside a coil, this simple tangent galvanometer turns Oersted's effect into a quantitative ammeter calibrated against Earth's field.