Mercury-in-glass thermometer Mercury-in-glass thermometer The mercury-in-glass or mercury thermometer was invented by physicist Daniel Gabriel Fahrenheit in Amsterdam (1714). It consists of a bulb containing mercury attached to a glass tube of narrow diameter; the volume of mercury in the tube is much less than the volume in the bulb. The volume of mercury changes slightly with temperature; the small change in volume drives the narrow mercury column a relatively long way up the tube. The space above the mercury may be filled with nitrogen gas or it may be at less than atmospheric pressure, a partial vacuum. In order to calibrate
Gabriel the prophet Noah in his mortal ministry. In Yazidism, Gabriel is one of the Seven Mysteries, the Heptad to which God entrusted the world and sometimes identified with Melek Taus. Jewish rabbis interpreted the "man in linen" as Gabriel in the Book of Daniel and the Book of Ezekiel. In the Book of Daniel, Gabriel is responsible for interpreting Daniel's visions. Gabriel's main function in Daniel is that of revealer, a role he continues in later literature. In the Book of Ezekiel, Gabriel is understood to be the angel that was sent to destroy Jerusalem. According to the "Jewish Encyclopedia",