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
Harmonic Motion Spring, ideal for demonstrations or hands on experiments in the physics classroom, 7 inches (18 cm) long with a maximum diameter of 1.4 inches (3.5 cm) and a spring constant (k) of 9.6 N/m
Specific Heat Demonstration Set, Unique way to illustrate the different heat capacities of various metals features a slanted panel with four grooves to hold metals, Includes four metals cylinders: Aluminum, Copper, Lead and Tin; support stand, two pieces of bee wax
Helmholtz Coil, Specifications: Coil diameter: 295 mm Coil spacing: 150 mm Number of turns per coil: 124 Enamelled copper wire thickness: 1.5 mm DC resistance: 1.2 Ohms each Maximum coil current: 5 A Maximum coil voltage: 6 V Maximum flux density at 5 A: 3.7 mT