US$ 13.99
providing an introductory tool for studies of induction
demonstrating mechanical-to-electrical energy conversion as the crank lights the bulb
Cutaway working steam engine model with piston
Built from two counter-rotating foil-sectored plates with a belt drive and a pair of Leyden-jar condensers
supporting small-feature eye anatomy teaching
6-Piece Acrylic Prism and Lens Set with Wooden Storage Geology_Geology Charts & Models providing an introductory tool forSix piece transparent acrylic prism and lens set with all faces polished, packaged in a wooden storage box, covering core dispersion and refraction shapes for ray box optics work.
US$ 13.99
US$ 77.99
US$ 12.99
US$ 162.00
US$ 11.99
US$ 14.99
US$ 77.99