Richmond palladium. [volume] (Richmond, IA [i.e. Ind.]) 1839-1854, 1847-12-13

..tnere YOU see that smoke rising. don
vou9 Wen. you and | know The reason
why smoke goes upward, but my lounges
boy don't rather think. Now take youl
own way; and see if you can make Inn
clearly understand IT,
Locke. after a moments reelection and
a glance round the room for something to
serve for apparatus. took ironl a shelf
where he had espied number OF the
articles. the smallest of set OF cast-lron
art-boNes as is usually termed the round
hollow tubes. in which the aNletrec OF a
carriage turns Then selecting a tin cup,
that would Just take in the box. and turn
ing into the cup as much water as he judged.
with the box. would fill il. he presented
them separately to the boy. and said:
s.There. nv lad. tell me which Of these
is the heayicstl'
"Whv. the cart-box. to be sure. replied
the boy. taking the cup halt-iilled with wa
ter into one hand. and the hollow iron III
the other.
Then YOU think this iron is heavier
than as much water as would fill the place
Of it. do youH' resumed Locke.
"Whv. yes, as heavy again and more
tool know't is" promptly said the boy.
ceeded the former. dropping into the cup
the iron box. through the hollow of which
the water instantly rose to the brin Of the
vessel.
There. YOU saw that water rise to the
top Of the cup. did you!''
YES. did,
VERY well. what caused it to do sou
"W hv. know well enough. if could
u, l ~. u,
heaviest, and as it comes all round the
water 50 il can't get away side ways, it
is forced up
THAT is right; and now | want you to
tell me what makes that smoke rise up the
chimney
why, guess,' replied the boy. scratch
ing his head, Il guess don't know
Did you ever get up in a chair 10 look
on some high shelf. 50 that Your head was
brought near the ceiling of heated room.
in Winter and if so. did YOU notice any
difference between the air up there and
the air near the floor bclow!'
les, | remcmber-I have and found
the air up there as warm as mustard and
when got down, and bent my head near
the floor to pick up something. found il as
cold as tupllct''
nat IS ever the case: but | wish YOU
TO tell me how the cold air always happens
to settle down the lower part ofthc room.
while the warm air. some how. at the same
time. gets above
"Why. why, heavy things settle down.
and the cold air-vet. that's it. ant it,
The cold air IS heaviest. and SO settles down.
and crowds up the warm air. that is light
est
'Nerv good. You then understand that
cold air is heavier then the heated air; as
that iron IS heavier than the water: so we
now will 90 back to the main question:
what makes the smoke 90 upward!''
"Oh. | see it now as plain as day; the
cold air settles down all round, like the
iron box. and drives up the hot air. as fast
as the fire heats il in the middle. like the
water; and So the hot air carries the smoke
along up with it. Same as feathers and
things III a whirlwind. CORY! | have
found out what makes smoke 90 up-it is
curious, though. an it. vout''
''Done like a Philosophers cried Bun
kcr. 1.-The thing is settled. will give
up that You are an acadencian Of a thou
sand on can not only think for YOUR
self. but can teach others to think: and l.
therefore pronounce you well qualified for a
III everything except govern
ment, about which we will hope for the
best. and run the risk: so You may call it
a bargain as quick as you please