Arizona republican., 1913-05-03
PROF. PATT|E
 SH0WSW0NDERS
Says That to Future Gen erations the Marvels of Our Own Day Will Be Known Only Through His tory-Greater Things

Fifty years from now Phoenix will have street railway system.''
 nI the high school auditorium last night Prof. Pattie discussed and dem- onstrated many of the marvels of present day science and held out the hope of greater things to come. His prophecies were almost as interesting as his portrayal of the present.
 Science and genius are trying to solve a problem-trying to annihilate time and distance" said Prof Pattie 'Marconi says I'll yet girdle this globe with a single ether vibration anninil- ating all space and all time D.
 The wireless telegraph was the first subject treated and for the benefit of the children the workings of the dem onstration instrument on the platform were explained. Messages were sent, power was switched on to motor, and lights were lighted by wireless. Prof. Pattie says that tOrpedOeS and airships will be guided, lights in light houses at sea will be switched on and off and sprung through the agency of ether vibrations. All these things have been done experimentally and the audience was convinced of the practicability of setting off explosives by wireless when a small explosion followed the depres- sion of the key at the sounding sta tion. It is planned that President Will son shall start the motors that set the machinery of the Panama Pacific ex- position in motion by blowing out a little ether wave from the Washington wireless station in 1915
 The pneumatic tube system will soon be used in the transportation of mails between all the large cities, said pro- lessor, and it is not improbable that tube and car systems will be arranged for passenger traffic also A contriv- ance of this kind was operated on the Pay Streak at the exposition at Seattle in 1909
 Passing to radium, which he styled the last child born of science, Prof Pattie stated that there was less than a tablespoonful of the highly active compounds in existence and not more than pound and a half of all the re- fined compounds together. Pitchblende, the ore of radium, is found in Bohemia, Germany and the United States. Prof. Pattie himself has seen large deposits of the ore near Jerome but so far radi- um of high activity has been obtained only from the Bohemian ore The final effect of radium rays on animal tissue is very injurious and no practical use of radium in the treatment of disease h vr~I.- the germs all right but they destroy the healthy tissue also. Prof. Pattie has in his possession some of the most valuable specimens of radum in Amer ica and in the darkened auditorium the light from the radium tubes was plain ly visible.
 The last subject treated was liquid air The professor explained how the air was reduced to the liquid state and then pouredIout small quantity of at mOsphere and proceeded with his ex- periments. He froze rubber and flow CTS so that they became as brittle as thin glass. But the one flower that was not broken while frozen returned to it's natural softness in a few min utes. The liquid air under pressure shot off a small gun. A small quan- tity of it was poured over some berries in a cup. Two pens were held in the gas evaporating from the liquid. When a match was touched to them the steel points burned with a brilliant light, and at the same time moisture from the air was freezing on the outside of the cup.
 The grand finale was the exciting boiling of teakettle of liquid air on cake of ice-and the kettle boiled faster when some ice was thrown into it.