3D Life History of Angiosperms Model, 24 x 18 x 2" Glassware_Glass Sets & Apparatus this silicon diode mounts on

this silicon diode mounts on a transparent base with 4mm color-coded sockets and a printed circuit diagram for hands-on forward-bias demonstrations

Used to spin the Newton disc into a perceived white via persistence of vision

Five-centimeter brass sphere mounted on an ebonite-insulated metal base

and 50mm sheaves at 6 inches overall

this decade resistance box substitutes for fixed resistors in circuit experiments

3D Life History of Angiosperms Model, 24 x 18 x 2" Glassware_Glass Sets & Apparatus this silicon diode mounts onMagnified angiosperm life cycle model traces pollination, fertilization, seed development, and germination through a complete hand painted sequence on a mounted base.