Ingen-Hausz Conductivity Apparatus on Stand Subcategory_Scales and Balances supplying the third-color line for

supplying the third-color line for breadboarded circuits already using black and red on the supply rails

Five color-coded ceramic ring magnets at 46mm diameter mount on a 15cm wooden dowel

circulatory

sized for two-cell battery-pack circuits and the standard ray-box and panel-lamp apparatus

Erlenmeyer Flask with a 500mL capacity and narrow neck is made of heavy-duty borosilicate 3

Ingen-Hausz Conductivity Apparatus on Stand Subcategory_Scales and Balances supplying the third-color line forStand mounted Ingen Hausz apparatus comparing thermal conductivity of different metal rods through wax coatings that melt at different rates along each rod from the heated end.