Alnico Cylindrical Magnet, 37 x 9mm Material_Copper Wider 70 x 20 x

Wider 70 x 20 x 8mm cross-section on this Alnico bar pair gives a broader pole face than typical bar magnets

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

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

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

and ad-hoc experimental setups

Alnico Cylindrical Magnet, 37 x 9mm Material_Copper Wider 70 x 20 xPink 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.