US$ 42.25
and material
dropping resistance as temperature rises and giving an introduction to temperature-dependent semiconductor sensors
Compact 200x44mm extended-range rheostat at 50 ohms and 2A
Designed for liquid-fill Snell's-law work at smaller scale
anchoring side-by-side magnet-strength comparisons for the classroom
92-Atom Molecular Model Set Subject_Physics and materialNinety two atom molecular model set with hydrogens, carbons, nitrogens, oxygens, halogens, and gray metals at 30 50mm diameter, plus medium, long, flexible, turning, and short bonds.