Exchange and Biological Transformations of Energy. 123 



TABLE 31. 



Equivalents of units of energy. 1 (0 = 980.5) 



1 Armsby's Principles of Animal Nutrition, New York, 1906,. p. 233. 2 Gram calories. * Kilogram calories. 

 4 Smithsonian Physical Tables, 1920, p. 197, table 212, gives 4.184 joules as "best" value for 1 gram calorie 

 (20 C.)- (g = 980.7) 



TABLE 32. 



Equivalents of power, work, and energy. (0 = 981 centimeters per second 



per second.) 



1 horse power = 745.956 watts. 2 



1 horse power = 4562 . 42 kilogrammeters per 



minute. 1 

 1 horse power =33,000 foot-pounds per 



minute. 1 



1 watt = 0.1019 kilogrammeter per second. 

 1 watt =0.737308 foot-pound per second. 2 

 1 watt = 1 joule per second = 10,000,000 ergs 



per sec. 



1 British thermal unit per second = 1055 



watts. 4 



1 British thermal unit = 778 foot-pounds.* 

 1 gram calorie per second = 4. 187 watts. 

 1 kilogrammeter per second = 9. 81 watts. 1 

 1 British thermal unit = 0.251996 kilogram 



calorie. 1 

 1 watt-second = 0.2388 gram-calorie. 



1 Smithsonian Physical Tables, 1896, p. 19. 

 4 Mann and Twiss, Physics, 1910, p. 213. 



2 Ibid, p. 21. ' Ibid, p. 24. 



TABLE 33. 

 Miscellaneous equivalents. 



1 meter = 39 . 3700 inches. 1 



1 meter = 3.28083 feet. 1 



1 kilometer = 0.62137 mile. 1 



1 mile = 1609 . 35 meters. 2 



1 inch = 25.4001 millimeters. 2 



1 cubic foot = 28 . 317 liters. 3 



= 1728 cubic inches. 1 



= 0.028317 cubic meter. 3 



1 cubic inch = 16 . 387 cubic centimeters. 2 



1 ounce avoirdupois = 28 . 3495 grams. 1 



1 pound = 453. 59 grams. 2 

 1 quart (U. S.) = 0.94636 liter. 1 

 1 liter = 1.05668 quart 



(U. S.). 4 

 26.822 meters 



minute. 

 .03728 mile 

 hour. 



1 mile per hour = 

 1 meter per minute = 



1 Smithsonian Physical Tables, 1920, p. 6. 2 Ibid, p. 5. 



s Smithsonian Geographical Tables, 1918, p. 173. 4 Ibid, p. 174. 



per 



per 



