Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1901-03-21
DEsERET EVENING NEWS. THURSDAY, MARCH FL 1901.


method has been developed Of separ.
ating them In pure state from their
combinations. Vanadium. states a
French writer, costs about $500 a
pound. II has great resistance 10 oxi-
dalton and acids adds to the ductllity
OF copper, aluminium and iron, but its
expense limits It's use TO colorlng glass
and making indelible inks with anilin.
Uranium IL worth 500 a pound. II Is
used In the glass and porcelain indus
tries, uranium carbide being also SUI
perlor TO nickel or tungsten for high
grade steel. Titanium Is remarkable
for It's diffusion everywhere, even IN
traces In the flesh, bones and muscles
Of animals. Iridium costs about $500
pound, palladium about $500. The one
Is the hardest metal known and Is used
90 tip gold pens and the other has the
slightest expansion. fitting II for stand
ard measures and for the mountlngs or
Astronomical instruments. Lithium, EN-
ployed only In medicine, Is worth $1,000
pound. Molybdenum and tungsten,
costing $3.50 and 50 cents respective
ly, are used In metallurgy, and give
steel the rare quality OF retaining Its
hardness at a red heat. Seleniumi hay-
ing the curious and promising property
OF losing It's electric resistance In light.
costs s22 pound.
ten per cent silver nitrate solution
is the simple application by which an
East Indian army-apothecary causes
erased writing TO reappear After the
application, the paper, having the sup
posed erasure Is exposed for q few
minutes to sunlight when the letters
are brought out on the resulting black
background The cause Is supposed to
be some ingredient Of the ink that re-
tards the reduction OF the silver salt.
Loss Of conducting properties, which
has even made II necessary 70 replace
cei tain cables, IL explained by French
engineer as due to the constant use or
one kind OF electric current On nine
wires between Paris Nnd Dion 1t has
been demonstrated that the conducting
qualities may be retained indefll%.eiy
by using positive current part OF the
time and then negative.
In new process OF plating, one
metal Is pounded by rotary heaters In
TO the other, as copper into iron or
steel, giving results claimed to be su-
perIor to those obtained by any other
method.
The novel suggestion Is made by Nj.
Gabriel Provost that learned societies
should prepare each year a list OF UNI
solved problems Of science, and there
can be little doubt that such a plan
would do much to stimulate investiga-
ton. The number Of questions that may
be asked 10 almost llmitless, while
small discoveries in many cases would
bring results Of enormous Importance.
These are specimen riddles propounded
by M. Provost. why is Chinese lac
quer superior to all others, when In pre-
pairing IL the same ma terlals are used In
the same way as elsewhereY why do
the qualities of steel vary according to
the water used for tempering itf'
why should a virus. inooulated In an
animal become more active for an ami
NAL of the same species II previously
inoculated In an animal OF different
species?' why is the horse whose
strength Is greater than mans, killed
by an electric discharge that man can
bear2' why can whlte-hot iron be
handled with IMMUNITY when red-hot
burns?" why does dynamite explode
in artillery caissons when the noise
made by them gives the sound of upper
LAP"
Blasting with -oxyliquit. which 10
liquid air In some suitable absorbent
seems to have given somewhat favor
able results in trials near Munich. The
cartridges were of paper, filled with an
oily mass and provided with primer
and these were dipped for few mo-
ments In liquid air, which was brought
to the spot In q vacuum jacketed YES
sci, and were then taken out. quickly
fixed, and fired by electricity or suit.
able fuse. The effect was quite equal
to that OF dynamite The cartridges are
not dangerous until fully prepared for
use and II one misses FIRE II becomes
harmless again within fifteen minutes
from evaporation Of the oxygen.
A Paris sugar reflner delivers his
product at the railway stations on u
lorry driven by 20-horse power cleo
trio motor. The lorry weighs lis tons
with the accumulators, and It carries
10 tons OF sugar. In recent trial. 1t 4
had u commercial speed OF S,S miles an /
hour with 2-mlles an hour UP grade
OF 10 per cent, the current being 200
amperes at l55 volts.
TO PREVENT PNEUMONIA AND GRIP
Iavatiya p,a,ao- IN In t,,a ra,,ovaa tba anna