US$ 156.71
giving students a continuously variable aperture for diffraction and spectroscopy work
demonstrating plaque removal during dental hygiene lessons
8mm rod attachment and a centered 50mm aperture together hold a lens square against an optical-bench rail for repeatable refraction
exposing the longitudinal and transverse components of wave motion mechanically
Truncated-cone stainless-steel coil 18cm long with brass wire windings and a 9-9
Small Air-Core Solenoid Subcategory_Kinematics giving students a continuously variableTightly wound 700 turn copper coil on a small air core former, rated 1. 6A continuous and 5A intermittent for short duration high field induction and Lenz law investigations.
US$ 156.71
US$ 108.00
US$ 127.88
US$ 104.78
US$ 123.64
US$ 173.25
US$ 173.25