US$ 88.99
opening to 2
this brass cylinder on an ebonite-insulated base demonstrates Faraday-cage shielding and uniform-curvature charge density
Illuminated solar system model with a socket-lit sun
Pairs 75mm sides with 9mm thickness on an equilateral flint glass refraction prism
and simple-machine force-motion measurements
Solanum Nigrum Vertical Section Model Electricity & Magnetism_Electricity & Circuits opening to 2Built for comparative plant reproduction teaching, this Solanum nigrum vertical section exposes ovary chambers, stamens, and fused corolla of the nightshade family.
US$ 88.99
US$ 88.99
US$ 80.99