72 UNIVERSITY OF MISSOURI BULLETIN 



We find on every side physics merging off into other 

 branches. The study of heat extended in a certain direction 

 takes up the steam and gas engine. In light one is carried 

 in one direction into photography, in another into the theory 

 of lenses, and the construction of microscopes and telescopes; 

 along still another line into astro-physics. 



There is no exact place where electricity in physics stops 

 and where electrical engineering begins. Even in the teach- 

 ing of students there are no hard and fast lines. Lines of 

 separation between the fields of engineering and physics are 

 constantly changing. The physicist may develop a subject 

 and as soon as it becomes of commercial importance the 

 engineer takes it up. Here again we find the difference to 

 be one of attitude. In general the physicist contents him- 

 self with the demonstration of the principle and its relation 

 to his fundamental laws, treating the application of it only 

 as an illustration. The fundamental discoveries that have 

 made electrical engineering possible were the direct result 

 of the spirit of seeking fundamental relationships. It was 

 through the unification of two apparently distinct subjects, 

 one magnetism, the other electricity, that the principles now 

 underlying all electrical machinery were discovered. Faraday, 

 content with his part of this discovery, left the commercial 

 development to the engineer. 



No one wastes time hunting for these lines of separation. 

 One rarely hears a man criticised for working outside of his 

 field. There is an immense amount of work to be done and 

 all help and assistance in doing that work is greatly welcomed. 

 Many problems have been solved only by a simultaneous 

 attack from several standpoints. Cooperation of this kind 

 is absolutely necessary. This is what should be expected 

 when we remember that the differences that have brought 

 about the various sciences are not so much in the subject 

 matter as in the purposes of the various scientists. 



