Zinc Rods for Thermal Conductivity Experiments, 10-Pack Entomology & Zoology_Dissection this brass ball and ring

this brass ball and ring fit freely at room temperature and stick tight once the ball is heated and expanded

allowing a sodium or filament lamp to be aimed precisely onto a spectrometer slit or refraction-cell setup

Enlarged mandible model exposes lower jaw teeth

Metal-based linear expansion apparatus with a large dial indicator and three 10-inch rods in aluminum

Zinc Rods for Thermal Conductivity Experiments, 10-Pack Entomology & Zoology_Dissection this brass ball and ringRounds out a comparative thermal conductivity set with zinc at a moderate conductivity value, ten 300 by 3mm rods dimensioned to match companion copper, aluminum, and iron packs.