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RADIO AGE for January, 1927
The Magazine of the Hour
37
Everyday Mechanics
Experiment Confirms the Electric Nature of Matter
CREATING electric currents by shaking the electrons inside a bar of copper, as peas might be shaken inside a baby's rattle, is the striking scientific experiment recently accomplished by Dr. Richard C. Tolman and L. M. Mott-Smith at the California Institute of Technology, at Pasadena. The new experiment concludes and strengthens a series of similar tests begun by Dr. Tolman nearly ten years ago. Its result confirms the modern idea that both electricity and matter are fundamentally the same. The electrons with which Dr. Tolman's experiment dealt are the tiny electric particles which operate the vacuum tubes of a radio set and which constitute electric sparks and electric currents. These same electrons are beMeved to form parts of the atoms of matter. A bar of metal contains millions of them. Ordinarily these electrons are tightly held inside the metal, escaping only under the action of intense heat or of electric forces. Nine years ago Dr. Tolman was able, however, to shake a few of them out of a moving copper rod by stopping it quickly, in the same way in which one shakes pills out of a bottle to which they adhere. Now he has used the different method of making his cylinder of metallic copper twist back and forth on a spring. This sets the electrons inside the metal to swinging.
Germ Personalities
THAT even the tiniest germs possess personalities and individualities is the conclusion reached by a German biologist, Dr. F. M. Lehmann, from longcontinued studies of a variety of microscopic, one-celled animal called the Paramecium. Creatures of this kind are plentiful all over the world and may usually be seen under the microscope in a drop of water from
Skill With Knife Wins Scholarship
Wide World Photo
Alfred Bird, 16 years old, of Somerville, Mass., makes models of famous old ships with his trusty jack-knife as his only tool. Professors at the Mass. Institute of Technology thought so much of his work that he has been offered a scholarship in Marine Engineering. He is shown here holding a model of the famous "Flying Cloud" which he built from an accurate blueprint of the original ship
Hay Fly Like Angels
World Photos
The least angelic of men will soon be flying about with a set of substantial mechanical wings, according to M. Anton Lutsch, Austrian engineer, who has invented an apparatus to be worn by an individual with an extremely light motor furnishing the motive power for a set of wings. The first model, shown here, weighs only eighty pounds, and has already risen several yards above the ground and for quite a distance in any given direction. The model has been bought with all rights by a Swiss consortium and transported to Switzerland where further improvements and experiments will be made. Photos show a front and rear view of the unique apparatus worn on a man's back
any stagnant ditch or pond. Dr. Lehmann has studied the effects of such things as temperature, food, fresh water and so on on individual creatures of this spe
cies. He finds them to differ almost as markedly among themselves as human individuals would do under parallel circumstances.