The Davenport gazette. [volume] (Davenport, Scott Co., Iowa) 1841-185?, 1851-12-25
INTERESTING FACTS IN CHEMISTRY.

INTERESTING FACTS IN CHEMISTRY.
By iosking down on the top Of wax
candle, I listic cup full ofmslted wax may
be seen Just around the wick. The cool
air keeps ihe outside hard so that rim is
formed which prevents the melted wax
from running down the side. The wax in
the little cup COOS up through the wick 10
Be burned, just as oil does in the wick Of a
lamp. Il goes up through the little pas
cages 10 The cotton wick, because very
email channels, or pores, have ibe power
in themselves Of sucking up liquids. The
power 10 called capillary attraction.
When the candle is blown out, smoke
arises from The, wick. liza bit Of lighted
paper be held in this smoke, the candle
Will light again without touching the fame
to the wick This shows that the melted
wax sucked up through The wick is turacd
into sspoN which burns and communicates
Ere 70 the wick.
When the candle is lighted, The heat Of
the burning vapor keeps on melting more
Wax, and that is sucked up in the flame.
wherc Il Is turned into vapor and burned;
and this process is continued until the wax
IS Ill used up, and The candle gone, or burn.
ID up, - it il termed.
Withstand the fame OF the candle
looks fat, il il both round aud hollow, and
runs up 10 point. Il is thus drawn up BY
tho hot Dir. Hot air always rises, and
that i The way smoke Is taken up chin
ney. Il goes up with The current Of heat
ed air.
The bright fame Of heated candle is
often 90 thicker than shec. Of paper; II
does not even touch The wick That The
fame i hollow may be seen by taking
pisce Of white paper and holding il for q
second or Two down under The candle fame
keeping the flame steady. When the black
from the smoke has been rubbed of, il will!
be seen that The paper is scorched in the
Shape Of ring, while inside Of the ring il
is only soiisd. and scarcely singed at ali.
Inside Of this hollow fame il the vapor
spoken Of Just now. By putting one end
Of bent tube into the middle Of The flame.
and the o.her end into bottle, the ynpor q
gas from The candle will mix with the air
~ t0C U.AGGs ~ utC 10 0Ck ~ luis uUAiuIs
Of air and gas, il will explode with report.
The dsme Of the candle, then, o lti'eI
shining case, with gas inside Of il. aud air
on the outside, 50 that the case Of fame il.
between The gas aud The air. The gas
keeps going into the fame 10 burn, and
when The candle burns properly, none off,
passes cut through the fame, aud none OF
the air gets through the Hau,o 10 tho gas.
The greatest beat Of The candle il 10 the
case offiame.
A candle will not burn wiihou. air. n
il has not enough air il goes out OF burns
badly, 50 tia, some Of The vspor inside Of
the fame comes out in the form Of smoke
A candle smokes because the wick is 81
large that 10 burning il makes too much
foei, or vapor, in proportion 10 The air tina,
can gett,i'; c'nseqpensly some Of the VIZ
por must escape ia the form Of smoke.
The smoke that comes out Of a can1le ID
Whist burns and makes the light. This
emcke il cloud Of small dust or bits Of
charcoal, or carbon. These are made in
the fame, and burned by il, and while
burning make the flame bright. They are
burned the moment they are made, noe
the fame goes 90 making more Of them
and that . bow the fame keeps bright.