A Textbook on Plumbing, Heating, and Ventilation: Principles of Heating and Ventilation, Steam Heating, Hot-Water Heating, Furnace Heating, Ventilation of Buildings, With Practical Questions and Examp

Excerpt from A Textbook on Plumbing, Heating, and Ventilation: Principles of Heating and Ventilation, Steam Heating, Hot-Water Heating, Furnace Heating, Ventilation of Buildings, With Practical Questions and Examples In graduating a Centigrade thermometer, the freezing point is marked or zero, and the boiling point the distance between the freezing and boiling points is divided into 100 equal parts; these equal divisions are carried as far below the freezing point and above the boiling point as desired. The reason that Fahrenheit placed the zero point on his thermometer 32° below freezing was because that was the lowest temperature he could obtain, and he supposed that it was impossible to obtain a lower one. Where there is any doubt as to the thermometer used, the first letter of the name is placed after the degree of temperature. For example, 183° F. Means 183° above zero on the Fahrenheit instrument. 183° C. Would mean 183° above zero on the Centigrade instrument. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.