Floating Ring Magnets Subcategory_Energy Transfer and a 60cm multicolored scale

and a 60cm multicolored scale on a hollow wooden resonance box let students vary length and tension to test the physics of vibrating strings

Built for identification exercises

Eight-piece parts washer cleaning kit combining nylon and bristle brushes

Used to render a permanent magnet's field lines visible without iron filings

this acrylic apparatus mounts a rotating protractor on a 15 by 9

Floating Ring Magnets Subcategory_Energy Transfer and a 60cm multicolored scaleFive color coded ceramic ring magnets at 46mm diameter mount on a 15cm wooden dowel, levitating above one another when oriented with like poles facing for a memorable repulsion demo.