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Barograph Baroko Barology Baromacrometer Barometer The barometer was invented by Torricelli at Florence about 1643. It is made in its simplest form by filling a graduated glass tube about 34 inches long with mercury and inverting it in a cup containing mercury. The column of mercury in the tube descends until balanced by the weight of the atmosphere, and its rise or fall under varying conditions is a measure of the change in the atmospheric pressure. At the sea level its ordinary height is about 30 inches See Sympiesometer. Nichol. Barometric Barometrically Barometrograph Barometry Barometz Baron "The tenants in chief from the Crown, who held lands of the annual value of four hundred pounds, were styled Barons; and it is to them, and not to the members of the lowest grade of the nobility (to whom the title at the present time belongs), that reference is made when we read of the Barons of the early |
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