Mercury barometer with recording chart attachment - uses double acting motor to position piston in tube providing temp. correctionA glass or metal tube is inserted into a deep reservoir and contains a depression piston. An arm is mounted on the tube to support a drum (9) driven by a clock ...
A pressure gauge is a method for measuring fluid, gas, water, or steam intensity in a pressure powered machine to ensure there are no leaks or pressure changes that would affect the performance of the system. Pressure gauges have been used for more than a hundred years and have been constan...
What are the uses of a mercury barometer? Discuss at least three other ways in which chemistry is applied in our daily lives (provide specific examples). Explain how water of hydration is related to measurement. Then explain how it is related to the law of definite composition. How does phy...
Who invented the barometer, and in which year? Why is mercury instead of ethyl alcohol used in barometers? What is the unit used for viscosity? What is an electric generator? Explain its various components. What property of water makes it an effective coolant? Briefly, what ...
The pressure meter such as a barometer, sphygmomanometer for measuring arterial blood pressure, or manometer which uses fluid columns, giving reliable and accurate presentation of pressure to be measured. Mercury is not used and there is automatic correction for variations in the ambient temperature. ...
Mercury, chemical element, liquid metal of Group 12 of the periodic table. Mercury is the only elemental metal that is liquid at room temperature. Mercury is silvery white and slowly tarnishes in moist air. It alloys with copper, tin, and zinc to form am