Iron Rods for Thermal Conductivity Experiments, 10-Pack Subcategory_Lab Burners this analog DC microammeter measures

this analog DC microammeter measures 0-100uA at 2uA resolution on a tabletop housing

Two-position copper plug key switch with 4mm terminals and two removable plugs

each fitted with 98 iron-rod plotting compasses in a 14 x 7 matrix that align with field lines whenever a magnet is brought near

illustrating linear thermal expansion

Iron Rods for Thermal Conductivity Experiments, 10-Pack Subcategory_Lab Burners this analog DC microammeter measuresLow conductivity reference iron rods at 300 by 3mm in a ten pack, paired against copper and aluminum to teach the wide range of thermal conductivity values among common metals.