Variable Gap Magnet for Physics Demonstrations Subcategory_Geology Models 5-inch stainless steel connecting rod

5-inch stainless steel connecting rod grips apparatus up to 3

the smallest in the Alnico horseshoe series and well sized for individual student handling during basic attraction-and-repulsion lessons

Large-scale typical flower model with removable floral parts and a bisected ovary showing internal ovule arrangement for detailed botany instruction

and resonance experiments

Barlow's Wheel apparatus with neodymium magnets and a heavy base

Variable Gap Magnet for Physics Demonstrations Subcategory_Geology Models 5-inch stainless steel connecting rodAdjustment screws (3 x 1 inch) on a metal base position two neodymium magnets, varying the pole gap from 0. 4 to 8. 5cm and field strength from 100 to 7500 Gauss across the working volume.