Mercury-in-glass thermometer related to the rapid cooling (and contraction) of the glass. When Celsius decided to use his own temperature scale, he originally defined his scale "upside-down", i.e. he chose to set the boiling point of pure water at 0 °C (212 °F) and the freezing point at -100 °C (-32 °F). One year later, Frenchman Jean-Pierre Christin proposed to invert the scale with the freezing point at and the boiling point at . He named it Centigrade (100 grades). Finally, Celsius proposed a method of calibrating a thermometer: These points are adequate for approximate calibration but both vary with atmospheric pressure.
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",