Scale (Delisle scale) refer to the °D A temperature measurement is that in the year 1732 ad by the astronomer, famous Giuseppe Nicolas was invented.

in 1732 ad a mercury thermometer, making the temperature of the boiling water as zero in the expansion of the mercury will for a hundred-thousand in temperatures lower than measured.

, 2400, or 2700 degrees, respectively, and for the cold winter St. Petersburg was appropriate. He is to Peter, first to St. Petersburg to help with the cost of exploration in the year 1725 was invited. Thermometer about 100 years in Russia used to be.