Low-Friction Triple-Tandem Plastic Pulley, 25/38/50mm Diameter Physics_Alternative Energy Seventy-times enlarged skin cross section

Seventy-times enlarged skin cross section reveals epidermis

Twelve-ball drilled set in a foam-lined plastic case with two each of aluminum

Die-cast body with plated brass parts anchors this cork-lined two-prong universal clamp

this motor-generator pairs a split-ring commutator against slip rings with bulb indicators

Enlarged three-times life size with seven separable parts exposing cornea

Low-Friction Triple-Tandem Plastic Pulley, 25/38/50mm Diameter Physics_Alternative Energy Seventy-times enlarged skin cross sectionTriple tandem plastic pulley with 25 38 50mm ball bearing wheels on an open sided 17. 6cm steel frame, eliminating cord threading during setup in compound pulley experiments.