Small Air-Core Solenoid Subcategory_Kinematics giving students a continuously variable

giving students a continuously variable aperture for diffraction and spectroscopy work

Length-adjustable wooden pendulum simple-machine model with a blue bob sliding along the string and a wooden guide keeping the swing on a consistent path for period-vs-length measurements

the medium-strength option for classroom investigations into magnetic poles and field-line geometry

8mm rod attachment and a centered 50mm aperture together hold a lens square against an optical-bench rail for repeatable refraction

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.