Interference points with a system of right-angled prisms

• Book ID: 104118799
• Publisher: Elsevier Science
• Year: 1913
• Tongue: English
• Weight: 62 KB
• Volume: 175
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(13)91146-7

✦ Synopsis

The electrical engineer has carried us into new realms of light before which all previous illuminants pale their " ineffectual fires." He can tell you that electricity is, but he cannot tell you "~c,hat it is. I was told some years ago at Niagara that when Lord Kelvin was there a short time previously he visited one of the power plants then in the process of construction. A young engineer--ignorant of the great personality he ,then encountered --was very kind in showing him over the wo,rk and telling him all that he knew about it. .Vhen they were about to part, Lord Kelvin said: " My young friend, you have been very kind and have told me some very instructive things. Let me ask you, ' What is electricity? ' " The young man answered, " I do not know, sir." The great man said : " Then at last we stand upon the same plane." Not only can the electrical engineer tell you