‘  4 -  0 t
lf   at ·
  it?   ‘ U
I ‘     »   L
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t °     ‘· -   6 Knnrucxy AI.UMNus
·    »»· `E 0 "   0 would be sufficient to lift us 2,000 feet ture that air is capable of holding, depends th
. ` .· ‘ ,   E i . into the air. on the temperature of the air. The warm- _
0 ii 0 1 ih 'I‘he air surroundin ` th 0` b ` th ` 0 t ' 0t CO
. ll   , . Q g ug must be able tg el € 2}.11 QCOHIQS, G ITIOIG II’101S Ll1€ 1 th
I _    · ‘· · _   ` carry off this heat and moisture, and it IS capable of holding- · m_
 V 1 E ,   ‘ is important that it be carried off at the For example, consider a given quantity m,
T  0 I 01   iii rate at which it is generated. If the air of air at 31 degrees temperature and 70% .
 i .1i ;;   is too cool and too dry, it absorbs heat relative humidity. If this air is heated mi
_ i r d; I   I I and moisture too rapidly for comfort. This to 50 degrees and no moisture 1S added, tg
. - · - Y Q W .0 is what we should prevent during the cold the relative humidity is reduced to 35% .
0   l l -0 ‘ winter months. If the air is too warm If the air is heated still further to 70 de-  
 · la ;   and too moist, we lose heat and moisture grees, and the moisture content kept the tg
0   . 0 0   ` ‘ too slowly for comfort. This is what we same, the relative humidity will be only _l,
- , `   , »_ _ 0 would like to prevent during the hot sum- 17 %% because the air’s capacityfor hold-  
G { 0       I mer months. The human body makes ing moisture has been greaty increased ie
- I0   i ; f` 0 0 automatic adjustments to regulate the by heating it to 70 degrees. Heating air di
  1· I   ii, rate at which it is forced to lcpe heat without adding moisture makes it rela-
.   ~   · 1 5;; " and moisture, in different kiHdS of H11`- tively drier, or in other words, lowers the ` V
    ` l i 1 i` When cold, the body insulates itself, caus- relative humidity.
1   ! ,i ‘ ing the appeal?-hee of iigeeee heehn Whleh This condition of 31 degrees and 70%  
. 1 . lu
· .   i I ·¢ ¤ 0 2 0 00¤t1‘3€tS the eklh P0YeS· Wheh tee heh relative humidity is the average outdoor CC
—  * 0   0 { l 3 * the b0dY cools itself bY exeeeswe Pe1`Sph`e‘ condition for New York City for Febru- te
“ T ` » 0` I ’ . thm- _ ary and is approximatey the average for O]
‘ _¥’ `..,. The factors which control the capacity the cold months. When this air comes T
` ;   I indoors, which it does even with all win- W
~ = l   · .—     ·e- · h--4 ·   A dows and doors closed as has been ex-
! § , ; N,  .,,;~      _ _ • _ v_ C]
i { E , g   -1*  _;u-,¤·_;,,,,,. _ —,-· aw · ---.   plamed, and is heated to 70 degi ees with
    ¥ `éif-'{      - ' no moisture being added, it has a relative ii
’ i - ` `      ri. A . humidity of 17 %Cri. This is a kind of
  {   he       it 01   air in Which we live during the winter d'
s { . y ,.,,,.ig ·.   ,_;,`é{ . ,_  ji r  · ,     ·,a _ . l W
l .   ; sr-      ·· -·___+—?r,  -—.   It is the weather of the Sahara Desert. _
il   l* Iqgégf  0  i».5iQ’**'  it What edect does this warm, dry air have y F
  ; !* ‘ ‘  ?—··· ci 6 i__4_  ,,> ‘ upon us? tg
  , . , 4     Winter is the time when we are bother- “
5 * ‘ ‘     ed most with colds. f we run true to U
Qi W * ‘*"`h‘0‘*‘  A  "“  the average person in the United States, ,
  " I ADMINISTRATION BUILDING we will have at least two good hard colds Ii
Er , 3 year. I -
ii .,* of the air for absorbing our Waste heat Studies made by the United States Pub-  
    are called physical properties—temDe1‘a— lic Health Service indicate the prevalence 1._
FEI 0 ‘ l " '. ture, relative humidity and motion. We of various respiratory illnesses during the O
ii . ‘ know that each of these factors aifect our winter months, a time when the air is al- O
  ` I sense of comfort. A hot, summer day IS most sure to be too dry and overheated.
H I   much Warmer.Wh€H the humidity IS h1gh» When we go out of doors on cold, Wili- b
fli l and a cold, Wmtef del' IS heheh There ee` ter days, our noses run. This is a nuisance. I,
it i · Vere when there le e Stmhg Wmd· To ful' But it is an interesting fact that the nose p
ii l IY uhdeietehg Haig gigeet Eg eeeh of these is supplying the moisture to humidify the _
'{ i f3et0l`S» We S eh e he em- air before it goes to the lungs. When out-
. .     · Temperature is a factor with whiclh we doors, the mucous membrane is very  
l ?   are all familia1‘—32 d€g1`e€S F· we HOW moist. When we come indoors, the warm, I _
5   ! il means ice, and 212 degrees F. means boil- dry air quickly diggs the muccoiésdmenr-  
Q ing water. brane causing it to ecome irri a e , anc, t
  i { ~ Relative humidity, however, is not well it is believed, a more active field for bac- t
.,   · i i understood. It is important because it in- teria. Dry air means dustier air which is
. l   fiuences the effect of the other two fac- gerIn—laden, so that more germs reach this S
j i l tors on our sense of comfort. It may be active field for Infections. _ t
{ l defined as the amount of moisture con- Dry air affects our looks, too. English t
00 0 tained in a given temperature compared women and Irish women are fortunate to k
y - AME to the amount of moisture the air would live in moist climates. They do not keep
Q r :3; contain were it full or saturated. The mois- their homes as warm as we do, so that t
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W   y  *—     .    .i ‘ - __  yp,    , · ·   ·  .._, _ _ l..        -- , ..-.._      ·—     -.-·   ·.0,., _,