The Dillon tribune. [volume] (Dillon, Mont.) 1881-1941, 1886-11-12

''eo principally by the friction of mir
"''l water vapor. During a thunder
storm the raintrops fu;ned in the
'''l'i'-cloUd des,ent! vertically to The
''''n, causing 4 partial vacuum. which
IS replaced by air ,Irawu in a,ryally ana
liohi upper layers. The friction caus,
y! 'n> movement is the princip.l.
cause OF the generation OF electricity,
Liquid oxygen in small quantities
'''s bren produced by number O
experiments, but it is only rercn:
.h't soliIiiied oxygen has been {,
talned. This interesting axperin,
was recently performed, by Prof Dew
at the Royal Institute. 1t was aceu,
pilshea by allowing liquid oxyscu ,
cSpaad intoa partial vacuum. whr.,
enormous absorption OF heat VIII.
accompanies the expansion resulted.
producing the solid substance. II.
oxygen in this condition resem.
Snow and has temperature Of 200 t.
grees Centisrade below the freezlu-
point OF water.
The British Journal of Photography
states that a patent for sending ,:ir-
lures by telegraph has recently hoe
taken out. Photography: is an Essential
IN the process. BY II system of photo
telegraphy the picture is projected il
sections. us it We're upon the selen!,;
cell i'll the circuit o; the wires, and $.
causes a greater or less number OF snu
sldlary currents to be switched on To
an !ncand"scent lamp at the receiyin>
end, the brightness o. the light follow
ing the intensity OF the spot of pictur,
thrown upon the seleuium The la!l'
is focused onto plate and it's varying
intensities fixed upon the Photographic
tablet.
The theory that the desert of Sahara
is for the most part below the bed Of
the ocean has been refllred by recent
surveys. and the fears THAT have been
expressed lest the tloodin.,, y. the terri
tory should change The depths of The
harbors OF the world are shown to be
grounlpsS. The united areas over
which the sea would flow amount to
about 3,loD square :A!les. or less than
the area OF Lake Ontario. 1t is very
doubtful if the proj.c, Of flooding the
Sahara is ever carries! into effect; but it
is safe 70 say tina. it Ii We're. the results
would prove to be without any iniuri-
Gus effect to the climate of southern
Europe or the seaports Of any part OF
the world.
Since the Bessemer, Thomas and
Siemens processes have rivalled eacl,
other in producing mild steel, slecpers
Of that material have come more
generally into use in Europe. i good
stee! sleeper should not cost more than
from l20 to $50 per cent. of the cost OF
a wood sleeper, while its advantages
are numerous. The average life OF
steel sleepers is considerably longer
and the width Of gauge is better main
tanned than is the ease with iron, while
the systems of fastcNings are safer ant
more easily maintained, and the "olt
material" value of a steel sleeper is
greater than that Of a wooden sleeper
The Dutch and German railways
especially, have used steel sleepers with
satisfactory results.
\ method Of preventing the incrus
tation of boilers that is little uset
here. though quite common in Ger
many, is as follows: The feed water i
forced through one of the usual teet
cOntrivanccS into the steam dome
in which it is mixed by jet of steam
entering con;4nt!'!t Ally. in order that j
may, during the mixing. be east violent
ly against til" r'vrf .. the dome. Tn
effect of this movement is that all tn
water receives the iu!l temperature .
the surrounding steam. by this sud
den heating. air mi rarhonic acid AZ,
withdrawn trrsH ne water. ana not onl
the carbonate o! !! NJ ;ut the sulpl,.t,
OF lime and mag.lrSium are extracted
and the precipitate occasioned is peri
odically removed.
The observatory which is now bein!
erected on the summit Of the Sonnb..t.'
a mountain lo,oD feet high, in tn
Tyrolrsc Alps. viii be the highest il
Europe. 1t will consist OF hloc&hous2
hank"N hy a mls:,l,'r stone turret fort
feet h;uh, The walls of the tower al
of enormous t,icki,rSs, and the blCc!;
house is ?nchorc,. 10 the rock by stce
wiz. cables. Wood has been chose
for the construction of the house, bt
cause il keeps out tn cold better tina