The thermometer 🌡.

Sourse

The Thermometer Heating the liquid contained in a tube made of very fine hollow glass, the liquid expands or extends through the tube in a visivle manner By cooling it, it shrinks or contracts. This is the basis of the thermometer, an apparatus with which we measure the temperature or degree of hot. The most widely used thermometer is the Merce- River. There are also alcohol, colored to that can be seen better. The parts of a thermömė- other are: liquid (mercury or alcohol), deposit or bulb, tube and scale or graduation. The colored alcohol is used for m say temperatures below forty degrees below zero centigrade, point where it freezes the Mercury. the Mercury. In the manufacture of a thermometer there are I have to make two main points. The one that al- reaches the alcohol or mercury in the tube at the boiling temperature of the water, and the other to which is reduced to the temperature at which the water freezes. The distance between the two marks or points is divided into as many gra two as the scale you want to give the thermometer.) There are currently three universal use thermometer scales: the Cen- Tigrade or Celsius, the Fahrenheit and Réaumur Centigrade has lation, "zero (0), and boiling," one hundred (100); its divisions are called degrees. The clinical thermometers used to measure fever are of centigrade scale. But they only point from 35 to 42) Réaumur's thermometer has a graduation from zero to eighty ra- two between freezing and boiling. The Fahrenheit thermometer has a graduation of one hundred and eighty degrees. The boiling point is on this thermometer at two hundred eleven degrees, and freezing at thirty-two. The three types of thermometer are used interchangeably in Europe and The three America.

Sourse

THANKS!!!