Premium Brass Slotted Mass Hanger Mass:20g Eight aluminum-shank tuning forks tuned

Eight aluminum-shank tuning forks tuned to scientific pitch (C4 = 256Hz) and ranging from 5 9/16 to 7 1/8 inches

the f/4 geometry projecting collimated and well-formed real images onto distant screens

Long-focal 75mm convex glass mirror at 300mm focal length and ~1

Life-size kidney model separates into two hemispheres exposing cortex

Wood-based hydrostatic balance with two long pans and one short pan adjustable along a central column

Premium Brass Slotted Mass Hanger Mass:20g Eight aluminum-shank tuning forks tunedPolished brass slotted mass hanger with top hook, used as a base support for stacking slotted weight plates during force and pulley demonstrations.