| Show AIRPLANE CLOUD CHASING REVEALS RATE OF GROWTH t- t Meteorology Society Learns Ways to Fathom Weather Secrets Secret From Air Washington Washington Chasing Chasing clouds in an airplane to learn how fast they grow and aDd to obtain other intimate secrets barred to earthbound weather men Is the new kind of meteorology that was described before the meeting of the American Meteorological society hereby hereby here hereby by Dr J 3 J. D. D B Anderson ADderson of the naval air station nt at D D. D C. C Doctor Anderson wanted to learn something about the birth and growth of or clouds In the more or less lesi permanent per per- permanent I manent layer la er that hangs over the Pacific PacIfic Pacific Pa Pa- coast of the United States lie was especially curious to find out the rate rute at nt which the they piled themselves cs up Into the air He Dc found that to keep his plane piano even with the tine top of ot cne cloud he be war wac studying he had hall to climb two or three hundred feet teet a minute How to get other weather data from the upper air without the expense of going up after It In an nn airplane was described by Dr J J. J Patterson of the Canadian meteorological service To He ITe has devised an apparatus that will Slash Hash back signals of temperature temperature temperature temper- temper and pressure from an ascending small balloon as ns lon long as ns the observers can keep It In ha sight through a tele tele- scope Hitherto similar apparatus has been carried up arranged to record Its experiences experiences experiences ex ex- with a pen on a slowly moving mowing mow mow- ID ing strip of taper paper But Hut to get the stor story the weather man would have to wait walt until the balloon came down downa again a aln and then depend on the chance of the apparatus being found and sent back by b some farmer or woodsman The rho new device Is equipped with red and white electric lights fed by a flashlight battery The mechanism la Is arranged ed in such a way that the order order order or or- der of Slashing Hashing on ou and off orr of ot the lights will tell teH the observer on the ground whether the balloon Is passing from warm air to cold or vice versa Sim SIm- Similarly flatly another light signals by Its how much the barometric pressure is changing as the balloon rises Doctor Patterson pointed out that this device should be especially useful to meteorologists in polar Iolar regions or other unpopulated parts of the tho world where the ordinary registering Instruments instruments ments meats are useless through the of or getting them back hack again I |