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.
The Celsius scale was invented by the Swedish astronomer Anders Celsius (1701-1744, Sweden). It is fixed by two temperatures: zero degrees Celsius is the freezing temperature of water (at a standard sea-level air pressure), and a hundred degrees Celsius is the boiling temperature of water at the same pressure.