Metal Lever on Magnetic Base Capacity_25mL Demonstration spherometer with an oversized

Demonstration spherometer with an oversized 133 mm dial head and baked enamel finish

dropping the bulk of the measured potential across the external resistor so the coil sees only its proportional share of the signal

but is an ideal choice for science classrooms and household use

Student pulley demonstration set with a range of pulleys for mechanical-advantage and force-multiplication comparisons

Frontal and median head sections expose brain

Metal Lever on Magnetic Base Capacity_25mL Demonstration spherometer with an oversizedThirty seven point five cm perforated metal lever on a magnetic base, with holes at 25mm intervals for hanging masses during torque, equilibrium, and lever principle demonstrations.