US$ 37.99
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
demonstrating mechanical-to-electrical energy conversion as the crank lights the bulb
showing the hexagonal bonding within each layer and the weak bonding between layers
providing an introductory tool for studies of induction
6-Piece Acrylic Prism and Lens Set with Wooden Storage Geology_Geology Charts & Models Cutaway working steam engine modelSix 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$ 37.99
US$ 110.77
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US$ 230.82
US$ 450.21
US$ 82.31
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US$ 733.54
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