Hair Hygrometer, 85mm Diameter Subcategory_Kinematics providing the gold-standard inert electrode

providing the gold-standard inert electrode pair for electrolysis experiments where electrode degradation must be eliminated

Corrosion-resistant ten-piece stainless steel slotted mass set totaling 1100 grams across 10 to 500 gram pieces

molecular geometry

1 Henry air-core inductor on a bobbin with 4mm sockets

rolling smoothly across inclined and level surfaces in friction and motion experiments

Hair Hygrometer, 85mm Diameter Subcategory_Kinematics providing the gold-standard inert electrodeFor classroom and stockroom room condition monitoring, this hair element hygrometer uses fiber expansion and contraction on an 85 mm dial, running without batteries or external power.