Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 306
^^ahtjiflit ? ^ paddies Fig. 102 - f -i - 1 7*. Thus, will give th^ number of foot pounds of work done.77.8 poundsXlO feet=778 foot pounds. The heat unit or British thermal unit (B. T. U.) is thequantity of heat required to raise the temperature of onepound of water one degree^ or from 39^ to 40 ^…
