86 SCIENCE OF THRESHING. 



ture will continue to rise. If the molecules cannot 

 increase the length of their vibration, they increase the 

 number of vibrations. When heat is applied, water 

 either expands or rises in temperature. Expanded 

 water or steam is of the same temperature as the 

 water from which it is made. It contains more 

 energy but is of the same temperature. 



