The Emmett index. [volume] (Emmett, Idaho) 1893-1925, 1901-08-23
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Aluminium and magnesium have re-
Gently been combined in Germany to
produce an alloy which does not rust,
and which is as light and tenacious as
pure aluminium, while 1t can be worked
with the file and the lathe 1t is named |
magnalium.
DR.. Ludwig Mond has discovered a
method for producing Illuminating gas
and coal gas at an expense Of cents
a thousand feet. II is thought that this
will effect a revolution by cheapening
electric power and it will also have an
important bearing on the production of
open-hearth steel
The suns surface is known to be sub
ject to greatly increased disturbances
every eleven years, known as the sun
spot period Auroral displays and dis
turbances of the earths magnetism
have similar period, and the pictures
of the corona which have been obtained
show markedly Characteristic varieties
of form dependent also upon the sun
spot period So one Of the principal
efforts of scientists Of late years has
been to obtain pictures of the corona
with as much detail as possible.
A remarkable discovery by Captain
H. P. Deasy, in the Kuenlun Noun
tains, Is that of a species of marine
plant, called grasswrack, at an eleva-
ton Of 1880 feet, more than 10000 feet
higher than the summit of Mount
Washington. The plants were not
growing, but were found, with their
leaves and fruit, deposited in a bed ten
or twelve feet thick, which was COW
cred and interspersed with strata Of
blue clay. The explanation offered is
that the deposit once formed part of the
bottom of a salt lake.
Mr.. Beddard, of the London zoologi-
cal Society, calls attention to peculiar
ity Of the ears of tigers which he thinks
may be classed under the head of PRO
tective markings" On the back of
each ear is very bright white spot,
and when the ears are directed for
ward these spots are conspicuous from
the front. Mr.. Beddard suggests that
when the tiger is sleeping in the dim
light of a cave or thicket the spots on
its ears may appear to an enemy, look
ing in, as the CLEAN of Its watchful
eyes, and thus save the sleeper from
an unexpected attack
The earthquake waves due to the Jap
anese shock of June 10, 1896, were re
corded on the self-registering tide
A gauges at Honolulu and at Saucelito, in
the bay of San Francisco. DR.. Charles
= Dawson has recently compared the cal
culated velocity of the earthquake
waves with the velocity formerly cal
culated from the usual formula. HI
found that at Saucelito, for example
the first crest of the waves reached th'
tide gauge ten hours and thirty-foui
minutes after the shock, having trav
ersed in this time the distance of AIS
miles at an average velocity of 664 fee
q second.
1t has been observed that on accoun
OF the absence of an atmosphere on tn
moon, and the consequent lack Of grada
ton in shadows, the eye of the observe
is seriously mlsled in judging the actu
al relief of objects forming the luna
landscapes. Professor Prinz, of Bru'
sells, has recently developed a metho
of avoiding this difficulty, and OF seem
the craters and other details on tn
moon in their natural proportions. Tai
ing advantage of the fact that as tn
moon travels around the earth the eC
centricity of its orbit produces the ei
feet Of slow Hbration, or balancing
and fro, which causes its face TO
inclined now little one way and no.
a little the other way. Professor Prin
makes two photographs of the luns
object to be studied atopposite points
the libration, and then combines thel
in a stereoscope whereupon the obje'
stands forth in full relief. This pril
ciple has hitherto been applied only
photographs of the moon as a who'll
and not to particular craters or region