crossover - the appropriation of a new style (especially in popular music) by combining elements of different genres in order to appeal to a wider audience; a jazz-classical crossover album. church music, religious music - genre of music composed for performance as part of religious ceremonies.
Fahrenheit invented the mercury thermometer in 1714, but it is unknown exactly how many he made. It divided the freezing and boiling points of water into 180 degrees. 32Â°F was the freezing point of water and 212Â°F was the boiling point of water, set by Fahrenheit himself. 0Â°F was based on the temperature of an equal mixture of water, ice, and salt. Fahrenheit based his scale on the temperature of the human body.
Galileo Galilei invented a rudimentary water thermometer in 1593 which, for the first time, allowed temperature variations to be measured. In 1714, Gabriel Fahrenheit invented the first mercury thermometer, the modern thermometer. English physician, Sir Thomas Allbutt invented the first medical thermometer used for taking the temperature of a person in 1867.