Metal Spouting Cylinder Subcategory_Energy Transfer and renal pelvis in a

and renal pelvis in a single cutaway for entry-level urinary anatomy teaching

and 500mm focal lengths for comparative refraction experiments

Premium Newton's cradle at 7

Chrome-plated steel wire stand at 5 x 5 x 5 inches supports flasks and beakers above alcohol burners for classroom chemistry demonstrations

Tandem double plastic pulley pairing 38mm and 50mm low-friction wheels on an open-sided steel frame

Metal Spouting Cylinder Subcategory_Energy Transfer and renal pelvis in aMetal spouting cylinder with multiple outlet holes at different heights, producing water jets of varying distances to show how pressure increases with depth in hydrostatics.