Small Air-Core Solenoid Subcategory_Kinematics 8mm rod attachment and a

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

5 inch dimensions in brass

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

and baskets for scrubbing metal parts in workshop and garage environments

Small Air-Core Solenoid Subcategory_Kinematics 8mm rod attachment and aTightly 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.