Elk City mining news. (Elk City, Idaho) 1903-1913, 1905-04-15
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~, Isk ANO
= : ees:elI1ventiOn

Ball-playing seems to be physiolog1-
cally beyond feminine powers. After
careful investigation the principal Of
a girls college finds that a larger AMI
lower-setting collarbone makes the
movement of the girls arm less free
than that of the boys, so that she
cannot hope to throw well.
pneumatic fabrication" is what
Dr. Carlo Del Lungo, Of Genoa, calls
his new plan for increasing the speed
of ships. 1t consists in reducing the
density of the surrounding water by
pumping air into it. creating a foamy
stratum in which the vessel slips for
ward against greatly lessened resist
ance.
A Norwegian engineer has recently
invented new apparatus for sea
sounding by which it is not necessary
to touch bottom. This is accomplished
by an acoustic method. The depths
are also registered graphically upon
revolving drum. The operation of the.
device depends upon the time which
sound takes to travel to the bottom
and return, and the measurement of
the time thus gives the depth to which
the exploring apparatus is lowered.
A safety device for the protection of
persons from the electric current upon
the rupture of trolley wire has been
invented recently. BY the employment
of this arrangement the current is cut
off and the wire rendered harmless.
| The device is fitted to each section of
the wire and consists of an ordinary
connecting ear held in it's proper po-
sition by the strain on the trolley wire.
AS soon as this tension is released,
as by the breaking of the trolley
wire, the current is Immediately cut
off at the broken section without any
-"shorting" sparks whatever.
Gales and high tides have remind
ed the Englishman that his little
island is being gradually swallowed
up by the sea. 1t has been found
that Great Britain lost 14S,9O6 acres
between 1867 and 1880, and 30, 155
acres between 1880 and 1890. A sur
vey in the reign of Edward l. gave
the Duchy of Cornwall 100000 acres,
y
ago showed that this had been re-
duced to S39,5O0 acres. Villages have
disappeared in the ocean, as in the
!, case Of Danwich, of which nothing
remains but ruined church on the
edge of a cliff.
, DIR. Walther Thorner has invented
, an apparatus by which photographs
may be made of the retina of the
human eye. Heretofore, says the
Scientific American, it has been posi-
2 BILE to study the retina and its dis
eases only by direct observation with
the eye spectrum. The fixed image
: furnished by the Photographic appar-
atus enables the physician to study
f the condition of a diseased retina at
S his leisure. Previous attempts to
Y photograph the interior of the eye are
: said to have failed because of the
difficulty of securing a proper illu-
e mination without pain and injury to
: the patient
{ Telegraph and telephone lines Of
= the Belgian Kongo region in Africa
{ show some interesting peculiarities.
Where the lines run through the for
> ests the wires are placed as much as
possible upon trees and in other cases
=. upon iron poles. The wire. which is
= of phosphor- bronze, is painted black,
so as not to attract the attention of
the natives, who lay hands upon all
u the copper they can finl. A cutting
= thirty feet wide is made through the
> forest for the line. The first hours
:, after sunset are the best for tele-
Il phone. After 10 o'clock in the morn
ing the heat makes it impossible to
use the telephone, especially in the
rainy season.
II Rahv Carriages for Hire.