Mercury for experiments packed in plastic bottle 500gms
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Dial 100 mm diameter, dial scale 960 to 1060 mb (28-31 in x 0.10 in) figured in black, good quality movement mounted in a polished plastic frame 155 mm diameter with glass in anodised bezel with lug for rear mounting.
Four glass tubes of different shapes & cross sectional areas are connected to a common horizontal tube. Mounted on a base to show level of liquid is constant.
A working model of a clear glass to show and explain the principle involved. It has a cylinder of 25 mm dia and overall lengths of 350 mm, cylinder is provided with non-return float valves and outlet is by means of a side tube.
The apparatus comprises of four different shapes limbs projecting vertically from a common horizontal tube made of glass mounted on wooden/plastic round stand.
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