Semicircular Acrylic Block, 90 x 16mm Lab Supplies_Spring Scales the numbered dicot leaf model

the numbered dicot leaf model on a base maps epidermal

levitating above one another when oriented with like poles facing for a memorable repulsion demo

Pascal's-law apparatus on a 10 by 7 inch base with four interchangeable vessels screwed into a lever-pointer aperture whose rubber diaphragm displays pressure on a vertical index scale

Higher-range 30-0-30mA center-zero galvanometer at 20mA sensitivity and plus-or-minus 2

Semicircular Acrylic Block, 90 x 16mm Lab Supplies_Spring Scales the numbered dicot leaf modelAcrylic semicircular block at 90 by 16mm, the half disc geometry letting light enter perpendicularly through the curved face for Snell's law and TIR ray tracing experiments.