Hoffman Voltameter with PTFE Stopcocks, Borosilicate Glass Subcategory_Specific Gravity Bottles the f/3 curvature stretching the

the f/3 curvature stretching the focal throw for demos that need the focal point set comfortably beyond the mirror face

sized for classroom illuminance and light-intensity investigations

5 newtons for measuring small forces during spring-law and tension-force classroom investigations

supporting three-rope compound arrangements for advanced mechanical-advantage investigations

Hoffman Voltameter with PTFE Stopcocks, Borosilicate Glass Subcategory_Specific Gravity Bottles the f/3 curvature stretching theBorosilicate glass Hoffman electrolysis apparatus fitted with chemical resistant PTFE stopcocks, two 50mL graduated outer tubes, a 200mL bulb, plus platinum and carbon electrode sets.