US$ 20.00
dropping resistance as temperature rises and giving an introduction to temperature-dependent semiconductor sensors
Designed for liquid-fill Snell's-law work at smaller scale
and 0-500mV at plus-or-minus 2
and diatom preparations for microbiology and protist-identification work
92-Atom Molecular Model Set Subject_Physics dropping resistance as temperature risesNinety 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.
US$ 20.00
US$ 262.50
US$ 129.00
US$ 20.00