The Abbeville banner. [volume] (Abbeville, S.C.) 1847-1869, 1858-05-27
From DR.. Brc,ccr'S Gni,ie To Science
SCIENCE ANSWERING SIMPLE QUESTIONS.

not inprcInated with earth and miner
ais.
Why is it more easy to wash with soft
water than with hard? Because soft water
unitcs freely with soap, aud dissoivcs it
instead of decomposing it, as hard water
does.
Why do wood ashes make hard water
soft.
Ist. because the carbonic acid of wood
ashes combines with the sulphate of lime
in the hard water, and converts itinto chalk;
2dly, wood ashes convert some Of the solu
| bic salts of water into nsoluble, and throw
them down rs u sediment by which the wa
ter remains more pure.
Why has rain water such an unpleasant
smell when it is collected in Il rain-,ub or
tank? because it is imprcguated with de-
composed organic matters washed from the
roofs, trees, or the casks in which it is col
! icctcd.
Why does water melt salt? Because
very minute particles Of water insinuate
themselves into the pores Of the salt by
capillary attraction. and force the crystals
apart from each other.
How does blowing hot foods make them
cool? 1t causes the air which las been
heated by food to change more rapidly, and
give place to fresh cold air.
Why do l;i'lirs fan themselves in hot
weather.! That fresh PARTICLES of air may
be brought in contact with their face by
the action OF tho far; and rs every fresh
-particlc of air absorLs some heat from
the skin, this constant change makes them
cool.
Does a fun cool the air ; No, it makes
the air hotter, by imparting to it the heat
Of our face but it cools our face 10y trans
icrriny its heat to the air.
Why is there always a strong draught
through The krvloe Of u door. Because
the air in the room we occupy is warmer
than the air in the hail therefore, the mir
from the !,a!l rushcs through the keyholc
into the room, and causes draught.
Why is there always Il strong draught
under the door and through the crcviccs on
each sale? because coll! ar rushcs from
the hall to supply the voil in the room
caused 10y the escape Of warm air up the
chimney. dc.
Why is there always 4 drauglt through
. p,i, Al
nal air, being colder than the air of the
room we occupy, rushcs through the win
dow crcviccs to supply the deficiency causc'l
10y the escape OF the warm air up the chin
ney, DC.
If YOU open the lower sa,l, of Il window
there is more dran@h. than if you open the
upper sash. Explain the reason of this.
II the lower sash be open, cold external air
will rush freely into the room and cause a
great draught inward but if the upper
sash be open, the heated air of the room
will rush out, ana Of course there will hc
less draught inward.
Ey WHICH means is a room better ventil-
atcd-by opening the upper or lower sash {?
y room is bett ventilated by opening the
upper sash !; because the hot, vitiated air,
which always ascends towards the ceiling,
can escape more easily.
by Which means is hot room more
quickly coolcd-by opening the upper or
| lower sash 3 A hot room l. co,,oJ ,,,;,I.I,,
by the lower sash, because the cold mir can
enter more freely at the lower part of the
room than at the upper. .
Why'd does the wind dry damp linen =!
Because dry wind, like dry sponge, i'm
bibcs the particles Of vapor from the surface
of the linen as fast as they are formed.
Which is the hottest place in a church
or chapel9 The gallery.
Why is the gallery Of all public places
hotter than the lower parts Of the buildings Z
Because the heated air of the building as
cends, and all the cold air which can enter
through the doors and windows keeps to
the floor till it has become heated.
| Why do plants often grow out Of walls
and towers =? Either because the wind blew
the seed there with the dust, or else because
some bird, flying. over, dropped seed there
which it had formerly eaten.
The Sabbath Breaker Silcnccd.-A pions
Il 4