| Show Queer Antics of Electrons I To Be Shown by Scientist The H Habits of ot Electrons how they tey jump through and roll over and perform other queer queer antics will be bethe bethe bethe the subject of ot an address at the annual banquet of ot the Engineering Council of ot Utah Monday night at atthe atthe atthe the Hotel Utah by Dr R. R A. A Millikan Mil Mil- lIkan Internationally l known physicist physicist physicist phy phy- and director of ot the Norman Bridge laboratory of ot physics at the California Institute of Technology Dr Millikan is the scientist who Isolated the electrons and actually actual actual- ly weighed individuals of ot these In- In small bodies Dr and Mrs Millikan arrived In Inthe Inthe Inthe the city at 1225 today from Los Angeles and were entertained at luncheon at the University club by members of ot the engineering frater frater- He accepted an offer otter to de deliver deliver deliver de- de liver a weeks week's series of ot lectures at atthe atthe atthe the Utah Agricultural college national national national na na- na- na summer school according to toan toan toan an announcement made b by President President dent Elmer G. G Peterson Tonight they leave for tor Ithaca N. N Y T. where Dr Millikan will de deliver deliver doliver do- do liver the Messenger lectures on The Evolution of Matter at Cornell Cornell Cornell Cor Cor- nell university through April The famous physicist has recently recent recent- ly gathered unto himself greater renown In the discovery discover of the cosmic cosmic cosmic cos mic ray which as an etl ether er wave has times the frequency of 01 vibration of ot light Dr Millikan will vill doubtless be credited with the discovery of ot the cosmic ray although as he explained explained ex ex- ex- ex In a R. recent article in the Scientific American other scientists as early as 1903 had discovered ov red a a. j j 1 J i peculiar powerful radio activity and that the normal leak of ot an electroscope electroscope electroscope electro electro- scope was due in part to rays that were able to pass through a II centimeter centimeter centi centi- meter or more of ot lead and then ionize the gas inside of ot the electroscope electro electro- scope The rays having this property property property prop prop- erty were therefore called the penetrating radiation of ot the atmosphere atmosphere atmos atmos- phere and were at first assumed to be due to radioactive materials in the earth and atmosphere and this is in fact tact the origin of ot the greater part of ot them He began experimenting In 1915 to determine the origin of ot these waves but the war curtailed the work In 1922 however he sent Instruments Instruments in instruments In- In to a height of ten miles at Kelly field Texas Last summer summer summer sum sum- mer further tests test were made by sinking electroscopes In lead to great reat depths In Lake 1 on Mt l Whitney in California at atan atan atan an altitude of ot feet teet At the surface of ot Lake Muir he said our electroscopes showed a definite rate of ot discharge As we sank the electroscopes to greater and greater depths this rate de decreased decreased decreased de- de creased continuously down to fifty fl feet t after which It became con con- stant Our experiments further showed that these thele says rays of ot cosmic origin are hardened as they go through the atmosphere just as X-rays X are are hardened in going lead and ancl thus we infer that we are working with a region of ot spectral frequencies about an octave In width and 10 times above the octave of ot optical frequencies to which our eyes eyes respond spond 1 J f IV |
