Double wall calorimeter with easily removable spring heating element, Operates on 3-6V DC at approximately 5 watts, Inner aluminum 150mL reservoir, aluminum outer, plastic insulator ring, Lid accepts heating element, stirrer, and thermometer cork, 5.1x4.7x7.1 in, 0.7lbs
Compound bar, Brass and Steel, Weight (lb): 41.0, Length (in):28.7, Width (in): 20.1, Height (in): 18.1, For demonstrating the differential expansion of two metals, Comprising a bar of Brass and Steel each 200 x 15 mm, riveted together