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LINEAR EXPANSION APPARATUS
For demonstration and comparison of linear expansion of solids. Metal bath mounted on a pair of tri-angular supports on which metal rods can be mounted. At one end, a tightening screw for clamping rods and at the other end, a pointer scale that shows deflection when the rod expands. Rod can be heated bu burning alcohol in the metal bath. Includes three 35-cm rods-brass, copper and aluminium.