Show mai F AW 0 the we mom 11 W 1 I 1 IL ilk I 1 I 1 ff AF lb 4 I 1 t 7 ku A 1 4 by ELMO SCOTT WATSON nhi nh of the famous remarks attributed to that great american humorist N mark twain which is familiar to most of his fellow countrymen was to the effect that everybody talks about the weather reather but nobody ever does anything about it however true that statement may have been VJ V once its passe now for modern science and modern engineering have done something about it and now mankind can literally make male his own weather that is the kind of weather he wants to have in his own orn home or place of business of course away back in the early history of mankind he learned how to make male his habiba tion warm when it was too cold outside for corn com fort in recent beani our movie palaces have pointed the way ray to making their interiors corn com fort ably cool R when hen it its s too hot outside for corn com f fort ort but up to no v the average householder t afford to follow the lead of the movie houses and install a cooling system as R well ell as a heating system in his home so it Is one of the triumphs of modern set sel ence and modern engineering that now anyone who has electricity at his his command also hag has at his command perfect indoor weather 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 most desirable for personal comfort with just the r amount of warmth or coolness correct moisture content or rela tin the e humid ty removal of dut Pirt leles and forced circulation ditl out draft since it does include all those things an other favorite expression its it s not the heat its it s the humidity la Is due to go by the boards for it R as that very tl ing humidity which started research engineers on the track that has bas brought about the development of air conditioning p ment which embodies the functions of heating cooling drying moistening cleansing and cincu lating of air and the beauty of it Is that the air conditioner smaller than the average heat radiator iq I 1 so compactly bult bu it that it may be installed in any room apartment office hospital or place of business more than that the conditioners are so sim slin pie in operation and require so little supervision that two tro 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 sultriness s dryness rain wind or calm As a matter of fact the conditioner goes the we weather ather man one better the conditioner can cant t wrong it pulls in the air of a room corrects it as it should be to provide personal comfort regardless of outdoor weather cond eions 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 con dit loners should operate in rooms where the windows are kept closed so the correction of the room atmosphere lant dissipated into the outdoors this factor brings up an interesting cevela tion of the general publics public s regard for fresh air fresh air isn t what it s cracked up to be accord ng to our foremost scientists in many cases it may be more harmful than the aver lire age indoor air air conditioners provide an answer to 0 o one I 1 W th a raging ba azard or a scorching sun ra s ng havoc outdoors the indoor weather in this room is cozy comfortable and healthful the air conditioner provides perfect a r the year round regardless of outdoor weather weathers s ec 2 no longer will the tired business man be tempted to run out on h a off ce force and flee from the hot and sultry summer days this air conditioner Iri installed stalled in his this offee in place of the familiar radiator Is the answer 3 Physic physicians lans always alert to welcome any sc ent fc or eng achievement that will aid them in their work of relieving human suf fering hail hall air conditioning as a decidedly pro gres sive step no longer will patients be forced to undergo the added suffering brought on by hot and sultry weather or by the injurious dry indoor air of the colder seasons A air condi lioner 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 colda th s air cond toning t unit does both and to complete its responsibility of supplying perfect indoor weather the year round it keeps old man hum city on the run in the hot and sultry seasons 0 C of the major deman demana asand stand quests of mankind comfort in div ng i effect indoor weather the year round despite changing seasons and er ratio activities of temperature and huma humanity anity they open the way tor for industrial and financial development of the tropics and the or ent where white men shelter in misery under the depress ing dumity and laborers collapse from the ef feet of hard manual activity coupled with heat and sultriness tie farmer who rho spends every dayl hour in the summer in the sun baked baled fields will have respite and h s wife accustomed to a hard work ing existence among the pots pans and cooking range in the kitchen will blossom out a changed woman business men who should wear their coats and keep tl air ties tied will rill be able to work as en ergeti cally and as smartly appearing in the sum mer as in winter and their clerks and raphers will rill have hane the alertness and desire to please that helps so much in retaining the pat conage of old customers and bu iding up good will with rith new tie answer to the brighter existence held out by aerologists to followers of almost every ac is based on the fact that despite the hot tet temperatures and most depressing humid ly of the working hours a man or bomin can stand them day after day if they are able to sleep soundly in real comfort and repose in stead of fitfully and uncomfortably when air conditioning experts talk about homes and buildings with closed windows a chorus of public thought sings out with these interjections what about carbon dioxide how about headaches brought on by clod stuffy rooms hov about that depressing feeling that overcomes us when we dont get enough fresh air you forget what doctors say about fresh air the answer la Is on file in the public documents of the federal government in washington eriv abely many members of the medical profession have known knorn for some years that chat factors other than a lack of eo called fresh air causes head aches and nausea in crowded places but few 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 many vears it is interesting to know bow how philosophers and scientists of centuries ago regarded air and how their findings stack tack up with modern scientific developments aristotle founder of a school at thought that swayed the thinking of mankind for more than 1000 years regarded air as one of nature s four cardinal elements the others be ing fire earth and water up until 1757 little was known about air then dr joseph black who was ras experimenting with chemicals made the discovery of a gas be he called fixed air now known as carbon dlos ide in 1770 joseph priestly isolated oxygen calling it air and thua for the first time mankind began to have some exact knowledge of atmosphere Lav lavoisier olster a leading student of his period a few years later discovered carbon dioxide would extinguish flame he ile concluded therefore that an excess amount of carbon dioxide formed by breathing would contaminate indoor air his standing and reputation brought ready accept ance for this theory and it was but a natural tep to the premise that thit fresh air w phout ex ceslie carbon dioxide and with an abundance of oxygen was necessary for human well being A small number of scientists refused to con cur in Lavois lavoisier lers s 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 report of these early theories Is that of dr R R sayers surgeon of the united states public health service and chief surgeon of the department of Com commerce merces 8 bureau of mines a division that knows as much it if not more about pure and impure air than any research organization in the world in reprint no 1100 of the public reports doc doe tor sagers states it was ras observed by many investigators tl at it was not until the oxygen content of the respiratory air fell below 10 per cent that animals began to breathe with biffi culty friedlander and herter concluded from the results of their experiments that inhaling of 20 per cent carbon dioxide for several hours has no poisonous effect not until a mixture of gas containing 80 30 per cent or more of carbon dioxide ra introduced did they find an appear ance of depression leblanc pointed out thit under conditions in which the carbon diomida content of the air increases considerably la in lecture rooms theaters etc the reduction of oxygen content Is small and very seldom falls below 20 per cent while the carbon dioxide ton lou t on tent very seldom exceeds I 1 per cent the same facts have been established by oth er investigators of standing since that time W mehl an engineer in 1903 announced definite ly the nonexistence of a breath poison he ile asserted the carbon dioxide content of a room is not a correct measure for the necessity of ventilation the scientific findings fInding 4 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 dam age to business and industrial effi efficiency clency brouil t on by personal discomfort with these fact engineers working on conditioning of indoor air found that it is easy to be comfortable in a room in which the customary thermometer shows a temperature of 80 90 degrees it if the hu midith Is lowered leading economists engineers and builders have hailed air conditioning as the next big in austry of the nation an industry supplying a product that will take a place along with the telephone automatic refrigeration and the auto mobile in general acceptance and necessity they point out also that air conditioning Is a new achievement that replaces practically noth ing now in use finds for it itself elf a place in lar demar d and opens the way to increased manufacturing sales and installation activity Q by western newspaper union |