Air Core Inductance Apparatus Subject_Biology Polypropylene round test tube rack

Polypropylene round test tube rack holding 12 tubes — four at 25 mm and eight at 19 mm — with 360-degree access for benchtop chemistry demonstrations and student experiments

Built for medical and life-science teaching

this three-dimensional Paramecium sectional model reveals internal structure and ciliate organization for microbiology teaching

Two 250-turn coils of 0

packed in a plastic transport and storage case

Air Core Inductance Apparatus Subject_Biology Polypropylene round test tube rack1 Henry air core inductor on a bobbin with 4mm sockets, free of magnetic core saturation effects for AC circuit, induction, and resonance experiments.