3-Piece Chrome Steel Horseshoe Magnet Set Electricity & Magnetism_Electromagnetism & Motors Five-pulley set of tandem 38mm/50mm

Five-pulley set of tandem 38mm/50mm low-friction plastic pulleys on open-sided frames

Sodium chloride lattice kit with 27 color-coded gray and green atoms plus 54 connectors for building the full cubic NaCl crystal structure in three dimensions

measuring period under different loads to isolate mass from weight

Designed to grip a wide variety of optical components on standard bench rails

3-Piece Chrome Steel Horseshoe Magnet Set Electricity & Magnetism_Electromagnetism & Motors Five-pulley set of tandem 38mm/50mmThree 6% chrome steel horseshoes at 75mm, 100mm, and 125mm in a plastic wallet with keepers, sized for a complete length versus strength comparison study using one consistent material.