6-Piece Acrylic Lens Set, 50mm (Convex, Concave, Plano, Meniscus) Subcategory_Lab Burners supplying steady low-voltage current to

supplying steady low-voltage current to electronics and optics circuits on student benches

Copper plate with 4mm socket terminals for the simple-cell apparatus

Designed to electrolyze water into separately collected hydrogen and oxygen

the medium-strength option for classroom investigations into magnetic poles and field-line geometry

and permittivity

6-Piece Acrylic Lens Set, 50mm (Convex, Concave, Plano, Meniscus) Subcategory_Lab Burners supplying steady low-voltage current toDesigned for safer per desk optics, a 50mm six piece acrylic lens set covers double convex, double concave, plano convex, converging meniscus, diverging meniscus, and plano concave.