Halogen Light Source for Optical Bench, 12V Entomology & Zoology_Zoology Models Equal-mass density set in aluminum

Equal-mass density set in aluminum

passing freely through the ring at room temperature but halted by the ring after flame heating expands the metal

and specific gravity work

these aluminum 4-inch overflow cans come in pairs for paired-station Archimedes-principle and density investigations

5cm brass rotor balanced on three pairs of adjustable cast-iron pivots

Halogen Light Source for Optical Bench, 12V Entomology & Zoology_Zoology Models Equal-mass density set in aluminumStand mounted halogen lamp rated 12V 21W, with a positioning lug rod that locates accurately on standard optical benches for lens, mirror, and refraction demonstrations.