The spirit of democracy. [volume] (Woodsfield, Ohio) 1844-1994, 1853-02-23
From DR.. Brewers Guide to Science.
Science Answering Questions.

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Why is rain water soft Because it il
not impregnated with earths and minerals
Why is it more easy to wasl, with sol
water than with hard? Because soft wate1
unites freely with soap, and dissolves it in
stead Of decomposing it, as hard watel
does. eaJs aa
Why do wood ashes make hard water
soft? lst. Because the carbonic acid O.
wood ashes combines with the sulphate o
lime in the hard water, and converts it into
chalk; and 2dly. Wood ashes conver,
some of the soluble salts Of water into in.
soluble. and throw them down as sedi.
ment, by which the water remains more
pure. ~
Why has rain water such an unpleasant
smell when it is collected in a rain water
tub or. tank! Because it is impregnat
with decomposed organic matters, washed
from roofs. trees, or the casks in which i,
is collected ....
/ Why does water melt salt? Because
very minute particles Of water insinuaie
themselves into the pores OF the salt by
cappillary attraction. and iorce the crys.
tails apart from eacl, other.
n How does blowing hot foods make them
cool! 1t causes the air which has been
heatedby the food 10 change more rapidly,
aud give place 10 fresh cold air.
Why do ladies' ian themselves in hot
weather? That fresh particles of air may
l,<, ,k a., 4
the action Of the fan; and as every fresh
particle OF air absorbs some heat from the
skin. this constant change makes them
COOL ' 'a
Does fan cool the air? No; it makes
the air hotter. by impariing TO il the heat
OF our face; but il cools our face, BY trans.
!erring its heat 10 the air.
( Why is iher. always a strong drangh,
through the keyhole Of door? Because
the mir i'll The rom We occupy is warmer
than the air in the hall; therefore. the air
from the hall rushes through the keyhole
inin the room. aud causes IA dranght.
Why is there always a strong hraughi
under the door. and through The creviccs
on each, side9 Because cold air rusllps
from the hall, to supply the void in the
room caused by The escape of warm air
up the chimney. etc. 'f 13f -
Why is there always a draught through
the window .revicesl Because the extor.
nal air, being colder than the air Of the
room We occupy, rushes through the wind.
ow crevices 10 supply the deficiency caus.
ed BY the escapeof warm air up the chin,
ney. etc. 9' 2''. gt'la
II you open the lower sash Of the wind
ow, there is more draught than If you
open the upper sash. Explain the reason
bf this. ~ the lower sash be open, cold
external air will rush freely into the room,
and cause a great draught inwards; but il
the upper sash be open, the heated air Of
the room will rush out; and, Of course,
there will be less draught inwards.
By which means is room better ventila.
ted - by opening the upper or lower
sash? Aroom is better ventilated by open.
ing the upper sash; because the hot, ven.
lilated air, which always ascendstowards
lhe ceiling. can escape more easily.
BY which means is a hot room more
quickly cooled, by opening the upper or
lower sashi A hot room is cooled more
quickly by opening the lower sash; because
the cold air can enter more freely al the
lower part Of the room than at the upper.
= Why does the wind dry damp linen?
Because dry wind, like dry sponge, i'm.
bibes the particles Of vapor from the sur.
lace ofthe linen, as fast as they are formed
& Which is the hottest place in church
or chapell The gallery. .ia',asl9
Why is the gallery Of all public places
hotter than the lower parts Of the buildingl
Because the heated ar Of the building as.
,ends, and all the cold air which can en-. |
er through the doors and windows keeps |
o the floor, till II has become heated.
4 Why do plants often grow out, Of walls
ind towers? Either because the wind
,lswgths seed there with the dust; Or else |
BECAUSE some bird. flying over, dropped |
oms seed there which Il had formerly
et.vy i "a " fffs r.tSaNfsttl TtH ~ Y.
gsgs III 4 LIZ e& ifs,SE
The population ofths Brazilian En-. |