12-Piece Aluminum Density Cylindrical Bars Set with Wooden Storage Physics_Density Silkworm longitudinal section reveals lepidopteran

Silkworm longitudinal section reveals lepidopteran anatomy

Plastic-housed plotting-compass field demonstrator that maps the magnetic field configuration in one or two dimensions whenever a permanent magnet is placed against it

Cover-protected single-phase rheostat with constantan winding and 4mm safety socket terminals at plus-or-minus 10% nominal-value tolerance

Designed to measure Planck's constant through the photoelectric effect

Three-part skull model features painted muscle attachments and numbered details for cranial anatomy and muscle origin-insertion teaching

12-Piece Aluminum Density Cylindrical Bars Set with Wooden Storage Physics_Density Silkworm longitudinal section reveals lepidopteranWooden block housed aluminum density kit of 12 bars at identical 0. 5 inch diameter with varying lengths, for plotting mass against volume at constant density.