Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1897-07-10
SCIENTIFIC MISCELLANY.


electricity tn Dnrrei Making
Pbysioiasy ana Exp-rt.Dcc--
travel OF itntlwny Tracis-rarbopic
acid Pawrr-iyeie Racing-
Spectacular sci.ncs-an Alloy
rha, Dors Not Reconsideration
the skin TO IItnr.
An interesting modern industry lately
established at Uxbridge, near London,
is the manufacture oil steel barrels. The
difficulty oil giving the stee! sheet the
regulation barrel shape is overcome by
easing the curved rolls at the ends SO
that they bear only in the middle, thus
/ stretching the metal at the center, and
forming the barrel body complete with
the exception oil shearing the ends
straight in special machine and weld
ing the seam. The welding is done by
electrically melting pieces Of steel over
the opening aud hammering them down.
| The heads are cut in circular sheafing
machine, corrugated and dishsd in a
400 ten hydraulic press. and secured in
place by a ring Of metal, which is welded
| to both tine ends OF the barrel and to
the head. The bung bosses are also
welded on. The welding by the Berna-
dos process requires no skilled labor,
and Dut moderate power is needed to
supply current The present capacity
OF The works Is about 30 barrels day.
From the physiological point of view,
DR. Leon Meunier finds, man may be
omnlvorous, vegetarian, or carnvorous,
according TO climate and the necessities
Of the case. An exclusively animal diet,
however, is injurious. Mans organiza-
ton wou d adapt itself more readily TO
an exclusively vegetable diet, but there
must be some meat, also for the most
useful work Exclusive vegetarianism
is The regimen of invalids, very effective
in certain diseases or morbid conditions.
Well persons can get along with it, but
without great advantage.
Railway tracts are found to be not alb
solutely stationary, but to be moved
slightly, especially on steep descents,
through the influence OF the traffic over
them. Austrian and French eng neers
report that the left hand rail, seen in the
direction of running, moves forward
more than the right hand one, while
Egyptian engineers have an opposite ex-
perience. One explanation is that the
cranks on the right side lead on
European locomotives, and those on the
lett ON the locomotives oil Egypt.
Liaueied carbonic acid is now pro-
duced so cheaply that its use for motive
power for such purposes as driving light
| ,,trA A
Guilty encountered is the great absorb
ton OF heat, and consequent loss of eff
fciency through the refrigeration OF the
engine, as The liquid expands and re-
turns to the gaseous state. A French
inventor, Nj. L. Rassinier, seeks to avoid
this difficulty by passing the caroonic
&C through capillary tubes in a
chamber heated 10 1902 c. (24S' F. by
petroleum or Contingencies, the heate
gas being then admitted TO the engine
cylinder, where 1t acs upon the pts ON,
and is then led into chamber or JACKIE I
surrounding the liquelisd gas The
paseL us acid giving up the necessary
heat 10 change the liquid acid to the
gaseous form OF go c., pressure OF
75 atmosphere is developed The final
exhaus, OF the gas takes place ON
this Jacket or chamber. The capillary
, heater ensures the first expansion OF the
r gas. while . the addition Of pressure
, through the heating OF The reservoir by
, the exhaust gas takes place only when
the enging is working, A suitable safety
, valve is provided for the supply pipe
leading 10 the capillary tubes.
An investigation Of the question o.
over-exer,ion in bicycle races has been
, | ,ka arI, OBJ ia "a,
by DIR. Albu. Observations on twelve
: professional riders gave such evidence
, OF the strain upon the heart as difficult
, breathing aud strong pulsation OF the
, heart and arteries, the most rem lrkablt
. | effect being an acute dilatation of the
|, heart, espsc ally OF the left ventricle
which disappears with rest and reap
heard at the next race. The dilatol
a NAV become permanent il the over-sx
I eriion is frequent, resulting in irrepara
. BILE injury ~ a weak heart. These Ell
/ fects, with kidney disturbance, are dan
|, gers encountered in racing and eXces
siye bcy cling, moderate riding benz
=, found as others have affirmed, yer
i beneficial exercise.
1 A new method OF preserving meats
# from which much is expected, consist
i in immersion in 80 per cent solutio
o OF salt through which continuou
4 current OF electricity is being passed
The curing is completed in from 10 to J
l. hours, when the meat is taken out an
il dried.
e Gold leaves so thin that $50. 600 meas
d ure only an inch IN thickness are pre-
o duced in the Swan process by pacin
i thin sheets oil polished copper in a
). electrolytic gold plating solution onl
4 until continuous gold film has formed
!. then dissolving away the copper in a Sc
n luton OF ferric chloride.
q At the brilliant private entertainer
-. -. ..1.n .r,,..t, h. IL L nIio,itai