Equilateral Acrylic Prism, 100mm Length, 25mm Faces Length_75mm this heavy-duty bosshead holds a

this heavy-duty bosshead holds a support rod and a perpendicular rod in a rigid screw-adjustable grip

Aluminum-nickel-cobalt U-shape at 50 x 13 x 10mm with an 18mm pole gap

Used to teach series

Alnico-alloy bar magnet pair shipped in cardboard storage with steel keepers bridging the ends

the candy-bar form letting students break each piece into smaller magnets that retain their own north and south poles

Equilateral Acrylic Prism, 100mm Length, 25mm Faces Length_75mm this heavy-duty bosshead holds aPairs 100mm of length with 25mm faces on a polished acrylic equilateral prism, the longer body bending and dispersing wider beams for refraction, dispersion, and wavelength experiments.