Rod-Mounted Pulley, Classroom Grade Item Type_Density Cubes & Cylinders and reproductive systems for amphibian

and reproductive systems for amphibian anatomy teaching

and resonance relationships

this 94-turn copper coil mounts on a 10 x 7 inch base with a flat plastic surround for iron filings and 4mm banana terminals

Solid carbon electrode bar that conducts current without participating in electrochemical reactions

and 12 volts on this 2-amp battery eliminator power supply

Rod-Mounted Pulley, Classroom Grade Item Type_Density Cubes & Cylinders and reproductive systems for amphibianRod mounted plastic ball bearing pulley with a 50mm wheel on a 150 by 10mm rod, engineered for low friction operation during accurate mechanical advantage measurements.