The Caucasian. (Clinton, N.C.) 188?-1913, 1901-04-25

CONTINUED from first page.
.yvyJloFsxI>p. Gact, may be kept

ever, outside air IL allowed TO reach
IL a rapid evaporation and expansion
begins. When this evaporation
takes place In a series Of pipss all
exposed to the outer atmosphere IL
l. a. If fire were placed beneath
boiler containing water. The atmOs-
rhere at say go degrees above zero
il 372 degrees above the tempera-
ture Of liquid air In the autOmo-
bile the pipes are painted black to
absorb the largest amount OF heS
from the atmosphere. The atmO5-
phere acts a. Prof. Bobrick's FIRE.
It IL said that the liquid air auto
mobiles can be manufactured and
sold complete with good profit at
from 5000 up. The liquid air for
motive power will cost much less
than electricity and not more than
steam or gasoline. The machine
can be run farther without recharg-
Ing than any other yet devised. ii
makes no smoke, no heat, and no
e-.aping steam, and no noise in its
workings. 10 il 40 light that the
wear and tear on the vehicle are
reduced TO the minimum. The
machinery II so simple and cons sts
of so few parts that II Is practically
indeatructible. The management of
the vehicle and the motive power
can be learned in two minutes.
There IL no possibility Of danger
connected with IL.
The appetite Of The audience was
whetted by the automobile show. 1t
has been contended for long time,
comparatively speaking There are
no actual long periods Of time since
the development of liquid air), that
the agent is absolutely worthless a.
power, or rather cannot develop
any power whatever. Some of the
greatest of the minds that have con-
sidered the physics of the new liquid
the dicts that the problem is equiva-
lent To that Of attempting to create
power by the evaporation of tank
of cold water. Nearly every one In
the audience had read or heard these
opinions, and their refutation in
such a startling manner was quite
sufficient to keep the attention dur
Ing the remainder Of the expert
ments.
Prof. Bobrick performed many
variations of the snowy experiment
with liquid air that have become
somewhat familiar Of late. He i'm
mersed rubber ball in the fluid TO
u moment and then made a yer.
good throw to second base, as
were, using far wall Of the plan
AS "a target. The ball splintered a
if 1t had been glass ball hit by
marksman. He made an excellen
hammer for exhibition purposes on
OF mercury, freezing it so soil,
around wooden handle that it wa
used to drive nails. The hamme
was handed around among tn
audience for ten or fifteen minute
and had not yet begun to show an
signs of melting. Two glasses, on
containing pure alcohol and one COZ
tanning whiskey, were frozen sole
the whiskey at a temperature {
about 175 degrees below zero an
the alcohol at about 200 degrees b,
low. The liquid air being heavie
than the alcohol sank below it i
the glass during the experimer
and bold violently while it Wa
absorbing heat. Prof. Bobric
apJke Of the uses of liquid air thu
nustra ted in purifying chemical
by separating them at their differer
freezing points. The whiskey col
tanning some water was freed frol
the water completely.
Another class Of experiments wei
those showing the wonderful pow
ers of liquid air when converted il
to It's original form rapidly by art
fetal means. A lighted match Q
the end of steel pen was immerse
in the fluid and the pen began
burn brilliantly as the liberate
oxygen combined with it. A ma
Of felt, almost wholly uninflamn
able, was filled Ikea sponge wit
the liquid air, so that the evapor
ton would be very rapid from
wide surface. When a match WI
touched to it there was moment
ry explosion with dazzling viii
light, and the entire thing had di
appeared In gases.
The experiments showing the DO
sibilities of liquid air in furnishir
brilliant illuminant at low co
were most interesting. A sma
machine, such as might be used
An ordinary dwelling house, w
used. 1t occupied about as muC
space as house gas metre. Som
what less than a quart Of the flu
was put into the tank and as it eva
grated the oxygen was brought I'M
contact with an ordinary gas fam
the combination of the two makir
q white flame of 1000 candle powe
Four or five of these lights, tot
of 1000 candle power, were runnir
during the entire two hours of ii
lecture, and when the program
was concluded there was somewh
more than half the fluid remainir
in the tank.
Chemically explained, this br
liant light Is produced by col
plete oxidation of the carbon
the gas flame. The ordinary fan
wastes by far the greater part of Il
latent light in the gas. One gallo
OF liquid air with the gas will pr
duce seven 1000 candle power fam
for three and one-half hours, or
will produce seven 100 candle DO,
or flames for thirty-five hours,