US$ 139.50
Equal-mass density set in aluminum
these aluminum 4-inch overflow cans come in pairs for paired-station Archimedes-principle and density investigations
the shorter focal distance lifting magnification for fine-print and specimen detail work
and magnetic strength relationships
5 inch base
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.
US$ 139.50
US$ 499.50
US$ 112.50
US$ 64.80
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US$ 407.00