Show make M ak the 11 weather we th W h I 1 ou o u 1 1 I 1 mo amlak if rw a i N S t if na q pg 4 ZI j r M 4 by ELMO SCOTT WATSON NE of the famous remarks attributed to that great american humorist mark twain which Is familiar to most ot of his fellow countrymen was to the effect that everybody talks about the weather but nobody ever does anything about it however true that statement may have been once its passe now for modern science and modern engineering have done something about it and now mankind can literally make his own weather lier that is the kind ot of weather be wants to have in his own home or place of business of course away back in the early history of mankind he be learned how bow to make his habitation x warm arm when it was too cold outside for comfort in recent years our movie palaces have pointed the way to making their interiors comfortably fort ably cool when its too hot outside for comfort but bat up to now the average householder afford to follow the lead of the movie houses bouses and install a cooling system as well as a beating system in ills his home so it Is one of the triumphs of modern science and modern engineering that now anyone who has electricity at ills his command also has hag at his command perfect indoor vi weather cather for all climes and localities and this is something more than regulation of heat and cold for the new activity of science described in the two words air conditioning means the correction of air to a point moat desirable for personal comfort with just the right amount Ft ot of warmth or coolness correct tuoi moisture sture content or relative humidity removal of du dus dut t particles find and forced circulation without draft since it does include all those things another favorite expression its not the heat its the humidity Is due to go by the boards for it was vias that very lery thing thin humidity which started research engineers on the track that has bas brought about the development of air conditioning equipment which embodies the functions of heating beating cooling drying moistening cleansing and circulating of air and the beauty of it is that the air conditioner smaller than the average heat radiator Is so go compactly built that it nay may be installed in any room apartment office hospital or place of business more than that the conditioners are so simple in operation and require so little supervision that two small switches on the end of the cabinet may be compared to the mythical lever which the cartoonists show the weather man operating when he wants to supply cold heat dryness rain wind or calm As a matter of fact the conditioner goes the weather man one better the conditioner cant guess wrong it pulls in the air of a room corrects it as it should be to provide personal comfort regardless of outdoor weather conditions then sends it into the room so quietly occupants are unaware of the conditioners operation to give to indoor air that delicate touch of perfection air conditioners should operate in rooms where tile windows are kept closed so r the correction of the room atmosphere dissipated into the outdoors tills this factor brings up an interesting revelation of the general publics regard for fresh air fresh air what its cracked up to be according to our foremost scientists in many cases caos it may be more harmful than the aver iare ege indoor air air conditioners provide an answer to one I 1 with a raging blizzard or a scorching sun raising havoc outdoors the indoor weather in this room Is cozy comfortable and healthful the air conditioner provides perfect air the year round regardless of outdoor weathers eccentricities 2 no longer will the tired business man be tempted to run out on his office force and flee from the hot and sultry summer days this air conditioner installed in his office in place of the familiar radiator Is the answer 3 physicians always alert to welcome any scientific or engineering achievement that will aid them in their work of relieving human suffering hall hail air conditioning as a decidedly progressive gres sive step no longer will patients be forced to undergo the added suffering brought on by hot and sultry weather or of by the injurious dry indoor air of the colder seasons A air conditioner Is shown here installed in a hospital room so unobtrusive and compact it takes up little space even in the cramped quarters of the room 4 turn on the heat or turn on the cold this air conditioning unit does both and to complete its responsibility of supplying perfect indoor weather the year round it keeps old man humidity on the run in the hot and sultry seasons reasons of the major demands and quests of mankind comfort in giving perfect indoor weather tile year round despite changing seasons and erratic activities of temperature and humanity they oren open the way for industrial anil and financial de development clop ment of the tropics and the orient where white men swelter Nelter si in misery under the depressing hamity and laborers collapse from tile effect of hard manual activity coupled with heat and sultriness the farmer who spends every daylight hour in the summer in the sunbaked sun baked held fields will have bare respite and his wife accustomed to a hard working existence among the pots paris pans and cooking range in the kitchen will blossom out a changed change woman business meu men who nalo should wear their coats and keep their ties tied will be able to work as energetically ergeti cally and as smartly appearing in the summer slimmer as in winter binter and their clerks and stenographers will have the alertness and desire to please that helps so much in retaining the patronage of old customers and building up good will with new the answer to the brighter existence held out by aerologists to fol followers louers of almost every activity Is based on the fact that despite the hottest temperatures and most depressing humid ly jy of the working hours a man or woman can call stand staad them day da y after day it if they are able to sleep soundly in real comfort and repose instead of fitfully and uncomfortably when air conditioning experts tall talk about homes and buildings with closed windows a chorus of 0 public thought sings out with these interjections intersections Interject ions what about cairon dioxide how about headaches brought on by bior closed ed stuffy rooms how about that depressing feeling that overcomes us when we dont get enough fresh air you forget what doctors say about fresh air the answer Is on file in the public documents of the federal government in washington privately many members of the medical profession have known for some years that factors other than a lack ot 0 r so o called fresh air causes headaches and nausea in crowded places but few feir have had the courage to be outspoken in the face of general belief and upset the belief im bedded in the public consciousness for so BO many years it Is interesting to know how philosophers and scientists of centuries ago regarded air and how their findings stack up with modern scientific developments aristotle founder of a school 1 it l thought that swayed the thinking of mankind for more than 1000 years regarded air as one of natures four cardinal elements the others being fire earth and water up until 1757 1737 little was known about air then dr joseph black who was experimenting with chemicals made the discovery of a gas he called fixed air now known as carbon dioxide in 1775 joseph priestly isolated oxygen calling it air and thus thug for the first time mankind began to have some exact knowledge of atmosphere lavoisier a leading student of his period a few years later discovered carbon dioxide would extinguish flame ile he concluded therefore that an excess amount of carbon dioxide formed by breathing would contaminate indoor air ills standing and reputation brought brou glit ready acceptance for this theory and it was but a natural step to the premise that fresh air without excessive carbon dioxide and with an abundance of oxygen was necessary for human well bein ing A small number of scientists refused to concur in Lavoi Lavol theory but most scientists engineers and medical men held their tongues in the belief nothing was to be gained by the voicing of contrary opinions among the first public reports of 0 these early theories Is that of dr R it sayers surgeon of the united states public health service and chief surgeon of the department of commences Com merces bureau of mines a division that knows as much if not more about pure and impure air than any research organization in the world in reprint no 1130 of the public reports doctor sayers states it was observed by many investigators that it was not until the oxygen content of tile the respiratory air fell below 10 per cent that animals began to breathe with difficulty friedlander Pried lander and herter concluded from the results of 0 their esperi experiments ments that inhaling of 20 10 per cent carbon dioxide for several hours has no poisonous effect not until a mixture of gas containing 30 per cent or more of carbon dioxide was wag introduced did they find an appearance of depression leblanc pointed out that under conditions in which the carbon dioxide content of the alir air increases considerably in lecture rooms theaters etc the reduction of oxygen content is small and very seldom falls below 20 per cent while the carbon dioxide content very seldom exceeds I 1 per cent the same facts have been established by other investigators of standing since that time W mehl an engineer in 1903 announced definitely the nonexistence of a breath poison ue he asserted the carbon dioxide content of a room Is not a correct measure for the necessity of ventilation the scientific findings definitely established that it is the combination of heat and humidity that is so depressing and injurious to mental and physical alertness and the consequent damage to business nod and industrial effi efficiency clency brought on by personal discomfort with these facts engineers working on conditioning of indoor air found that it Is easy to be comfortable in a room in which the customary thermometer shows h aws a temperature of 00 degrees it if the humidity Is lowered leading economists engineers and builders have hailed balled air conditioning as the next big industry of the nation an industry supplying a product that will tako take a place along with the telephone automatic refrigeration and the automobile in general acceptance find and necessity they point out also that air conditioning la is it a new achievement that replaces practically nothing now in use finds for itself a place in popular demand and opens the way to increased manufacturing sales and installation activity Q by western newspaper union |