Magic With Magnets (Jan, 1938)
Magic With Magnets
by Prof. Victor Lewitus
NEARLY everyone has either seen or heard about magnets, but very few people realize just how indispensable magnets of one form or another have become.
The Chinese people appear to have been the first to make use of the natural magnetic minerals which they found in certain regions, in great abundance. They discovered that the “lodestone,” as it was called, was capable of attracting some things and not others.
As a result of these observations, man today has the advantages of the mariner’s compass, the electric bell and buzzer, the magneto of automobiles, numerous railway signal devices, and many special surgical instruments. We must not forget to mention the telephone and the telegraph, nor should we forget that magnetism is the important factor in the production of electrical energy from the dynamo.
Our modern life is absolutely dependent upon the workings of magnetism. Without it we could not enjoy modem means of travel. be it on land or sea or far up in the clouds. Without it we could not communicate swiftly as we do from one end of the earth to the other. Without it we would be much discomforted.