92-Atom Molecular Model Set Rod Material_Stainless Steel producing distinct audible pitches at

producing distinct audible pitches at varying spin speeds to relate rotational frequency to perceived sound frequency

Compact 300mm black lead with a 2mm banana plug at one end and a crocodile clip at the other

generating enough output when cranked to light a connected bulb during electromagnetic-induction and energy-conversion demonstrations

supporting reproductive cell biology teaching

92-Atom Molecular Model Set Rod Material_Stainless Steel producing distinct audible pitches atNinety 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.