Alnico Cylindrical Magnet, 37 x 9mm Material_Copper heating the bar until it

heating the bar until it no longer passes through the opening and contraction returns it

equipping a class for compound-pulley and multi-rope mechanical-advantage experiments

this magnified animal cell model reveals organelle ultrastructure and cellular organization for advanced biology instruction

Wooden wheel-and-axle simple-machine model on a 9

this cast double burette clamp secures two burettes side by side for back-titration and comparative analytical procedures

Alnico Cylindrical Magnet, 37 x 9mm Material_Copper heating the bar until itPink dots mark opposing poles on this 37 x 9mm Alnico cylinder pair, supplied with steel keepers and a cardboard storage box for sustained field strength between hands on experiments.