US$ 160.00
and nucleus for single-celled organism anatomy teaching
and small diffraction objects in the optical-bench beam path for repeatable interference and diffraction work
fitted with two 4mm terminal posts
Millimeter-graduated 15cm Hooke's-Law scale on a 30cm support rod
sized at 10 inches for focused respiratory anatomy teaching
Alnico Horseshoe Magnet, 50 x 12 x 15mm Material_Zinc and nucleus for single-celled organismAluminum nickel cobalt alloy 50 x 12 x 15mm horseshoe magnet with included keeper bar, the Alnico composition resisting demagnetization for repeatable field mapping experiments.