Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1908-06-27

for coarse crushing and quartz mills
for reducing the rock to fine powder.
ready for washing out the gold,
The electric violin player is one of
the most ingenious of recent musical
mechanisms. and this is entirely auto
matte In action, unlike the familiar
piano players, which are somewhat
guided by the operators. A perforated
roll is drawn over the strings by a
small motor With the paper in place
on the roller, contact brushes rest up
on II, and as perforation is reached.
current from the brush energizes a cor
responding electromagnetic, producing
she proper effect. A revolving disc
built up of layers of celluloid OF the
thickness of horsehairs, Is automati-
caliy moved to give the action of the
bow. special magnet controls the
staccato movement by pressing the
discs suddenly against the strings
and four magnets--one for each string
yield pizzicato effects by causing a
hook to fly back and pluck the string.
An arm vibrated against the tail piece
gives tho tremolo effect. Each string
has 10 automatic fingers, which can
be used singly or in combination, Civ
ing double treble or quadruple stop
ping; or Il solo may be played with
accompaniment on the lower strings. A
very creditable violin performance can
be had by simply turning switch.
carbon III an anonymous fused con-
dition-real black diamond--is produced
In simple manner by a process late
~ patented in France by Nj. Bonnet. a
vessel of bronze or other metal con-
tains two carbon electrodes, between
which Is a rod OF carbon over a small
vessel of carbon bisulphide: and as
the first current is passed the liquid
is vaporized, generating high pres
sure. Under this pressure and the tenn
pefature of high tension current, the
carbon rod liz changed In a Few mo-
ments to black diamond--the material
so priced for drills and as an abra-
sive.
The Pleiades have long formed an
interesting test of vision To ordinary
eyesight six stars are visible, but keen
eyed persons see seven and even IL
or more. Reporting late observations,
+, Vincart, an Antwerp astronomer,
mentions counting IS Pleiades with the
naked eye,
The earth's interior is still mys-
terry, but physicists no longer regard
II as n molten mass still radiating
heat, Into space, different concep-
ton having been gradually forced up
on them In the last 40 years by studies
OF the tides, of the propagation OF
earthquake waves. and, quite recent
ly' of the possible heating from ra-
alum. Lord Kelvin and others have
concluded that the earth Is more rigid
than steel, but less rigid than glass.
There are reasons for assuming that a
stony crust may encase "A metallic
nucleus, and Sir Oliver Lodge has
shown that the earth's known average
density OF go could be accounted for
by supposing that the stony crust. with
an average density of 2.5. extends
10 a depth of 500 miles. and encloses n
core Of metallic iron, with density OF
7. The Hon, r, ]. Sturtt finds more
radium In the rocks than would suffice
TO keep up the internal heat II tho
earth were Of rocksthroughout. lie cal
culatcs that the crust Is miles thick.
and that the radlum gives II a bottom
temperature OF 1900 degrees c.. inn
parting uniform temperature
throughout the metallic nucleus, which
does not contain radium.
Fatigue is now generally attributed
10 poisoning from muscular waste. II
does not come on steadily, however,
from tho early morning until the stage
OF sleep Is reached In the evening and
n new conclusion is that the first effect
OF the fatigue poison Is one OF stimu-
lation, This would explain why men
tai faculties and muscular energies are
often at their best I'm the evening. II
Is pointed out as quite probable that
both nerve oenters and muscle hbers
may be rendered irritable, and that tho
same chemical agents may later mar
coti2e them.
A now wire OF special advantage IN
electrical industries Is obtained by
Partisan metallurEist through a per-
fected process OF welding copper TO
steel wire. Great conduciivity IL COM
bined with tensile strength and elias
ITCHY. giving wire stronger than cop
per and smaller and less exposed TO
wind action than iron or steel OF the