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Fortin type barometer
A simple Fortin type barometer can be improvised for the junior laboratory. The glass tube is held vertically with single end in the reservoir by two curtain-rod holders on wooden blocks, fixed to the back board, which is a part of 18 cm by 2.5 cm white- wood. The reservoir is a potted meat jar or small beaker, which can be enthused bodily up or down by the screw jaw of a G-clamp. This changes the level of the mercury and keeps it in contact with the bottom of the scale. The reservoir is stopped from slipping sideways by a brass collar, fitting loosely and attach to the back board.
Beyond the milky Way Galaxy: Let us now move away from the Earth and venture into the space beyond. If we were at a point far out in space we would see scattered in space, a
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TO LEARN THE USE OF A CARBON DIOXIDE FIRE EXTINGUISHER : All chemical laboratories should be provided with carbon dioxide and or dry chemical fire extinguishers. Carbon dioxide fi
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