Richmond palladium. [volume] (Richmond, Wayne County, Ind.) 1831-1837, 1833-08-17

w. ~ sssss~S ~ SnSCA 10 OPSsssO6s
through which, when cold, it passes
readily. A glass stopper sticking fast
in the neck of "a bottle, may be released
by surrounding the neck with a cloth
taken out Of warm water, or by i'm
mersing the bottle in the water up 10
the neck: the binding ring is thus hea-
ted and expanded sooner than the stop
per, and so becomes slack or loose up
omit. Pipes for conveying hot water,
steam, hot air, &C., if Of considerable
length, must have Jennings that allow
a degree Of shortening and lengthen-
ing, otherwise a change Temperature
may destroy them. An incompetent
person undertook to warm a large
mandatory. by steam, from one boz
Ter. He laid a rigid main pipe along a
passage, and opened latera: branches
through holes INTO the several apart.
ments, but on his first admitting the
steam, the expansion Of the main pipe
tore it away from all its branches. In
AN iron railing, a gate which, during
a cold day may be loose and easily
shut or opened, in a warm day may
stick, owing to there being greater ex-
Pansion Of It, and Of the neighboring
railing, than Of the earth on which
they are placed. Thus also the centre
Of the arch Of an iron bridge is higher
in warm than in cold weather: while,
on the contrary, IN a suspension or
chain bridge the centre is lowered.
The iron pillars now SO much used to
support the front walls Of houses, OF
winch the ground stories serve as shops
with spacious windows, in warm wea-
Their really lift up the wall which rests
upon them, and in cold weather allow
il again to sink, or subside, in degree
considerably greater than if the wall
were brick tiom top TO bottom. The
pitch Of a piano-foste is lowered in a
warm day, or in 4 warm room, owing
10 the expansion Of the strings being
greater tnan the wooden framework /;
and ,p cold the reverse will happen.
A harp, or piano, which is we'll tuned
in a Maorniug drawing-room, cannot be
perfectly in tune when the crowded
evening party has heated the room.
Bell-wircs too, slack in summer, may
be of the proper length in winter.
There exists a most extraordinary ex-
ception, already mentioned, to the law
Of expansion by heat and contraction
by cold, producing unsPeakabIe bene-
fits in nature, namely, in the case DIVA
ter. Water contracts according to
the law only down to the temperature
of forty degrees, while, from that to
thirty-two degrees, which is its freez-
ing point, it again dilates. A very
curious consequence of this peculiarly
is exhibited LA the wells OF the glaciers
OF Switzerland and else here, namely
that when once pool, or shallow well.
on the ice commences, II goes on quick
~ deepening itself until 1t Penetrates
to the earth beneath. Surprising the
surface of the water originally to nave
nearly the temperature Of the melting
ice, or thirty-two degrees, but to be
afterwards heated by the air and sun,
instead Of the water being thereby d.
lated or specifically higher, and de-
tanned at the surface, It becomes heav-
Ter the more nearly it IS heated to for
ty degrees, and therefore sinks down
10 the bottom of the pit or we'll; but
there, by d.ssolv,ng some Of the ice,
and being consequently cooled, it is a.
gam rendered lighter. aud rises to be
heated as before, again descend; and
this circulation and digging Cannot
cease until the water has bored its
way quite through.-.1rnon.
From the Fort Wayne Seatiaei.
FoRr WAYNE.-This place took its