Jolly bulb metal - superior, Palm-sized, hollow metallic ball with a manometer connected to it for demonstrating change of pressure in a closed volume of air when heated or cooled, 80 mm diameter
Measuring the air resistance as a function of the wind speed with the precision manometer Measuring the drag coefficient cW: relationship between air resistance and body shape, Measuring the pressure curve on an airfoil profile
Solar Cell with wires, 6V, 70mA, Monocrystalline, High Efficiency Miniature, Efficiency: 17.0%, Dimensions: 95mm x 51mm x 3mm, For larger load applications including higher voltage and current loads, compact size with solid attractive casing
Hareft s Apparatus, Mounted on a wooden stand with a scale, comprises a three-limbed glass tube with rubber tubing on the centre. For comparing the densities of liquids by measuring the height of two columns of liquid produced by applying suction, Dimensions 68 x 30 x 15 cm