The Leavenworth weekly times. [volume] (Leavenworth, Kan.) 1870-1880, 1879-05-15
SCIENTIFIC PROGRESS.
The Latest Recorded ConqGesfs OF
Mind Over Matter

Mind Over Natter.
M. Bert saws that in absolute inaction
the Temperature Of both sides OF the BRAIN
is eausl; but as soon az any brainwOrk Is
undertaken, the left side shows the higher
temperature.
H. W. Vogel has photographed the
spectrum CT pure oxygen, using Tor the pur-
pose the eelatine bromide OF silver plates
prepared in England. These plates have
only recently been introduced, and are said
TO be fifteen times more sensitive than the
most sensitive wet plates. The photographs
will soon be published.
A metal has been extensively produced
in France, which is 2 combination OF iron
and steel. The two metals are run sePa-
rately into a mould divided into two parts
by a thin plate OF sheet iron, when the
whole becomes welded together. The new
metal Is particularly adapted for armor-
plating, anchors and safes-Revue Indus
trielle.
Not the least popular among recent
inventions will be that OF William Moore,
of Egypt Grove, Fla. Mr.. Moore is an or
ange planter, and has bent his mind for
several vesrs to the task OF sending oranges
10 the northern markets just "a they come
from the trees He now says that he has
the thing down fine. but his invention or
process, or whatever it may be, Is not de-
scribet.
A new type writer machine comes from
Copenhagen. The aim OF Hansen, the IN
ventor, was TO simplify the mechanicism
between the keys, which are pressed by the
fingers, and the device which directly ef-
fects the imprint. The keyboard is abol-
ished, and a semi-circular copper cap over
the circle Of type arms made TO do the
work. By means of rod, this cap connects
each arm with single spring push button.
A French writer estimates that 4 ,000,-
600 tons Of rails are required every year 10
renew the worn-out stock on the railways
Of the world already in operation, besides
what are needed to lay down new roads.
The average wear of a rail is ten years.
The rolling mills of the United States have
a capacity of nearly 100000 tons, though
the consum ptior Of rails, including imports,
is not half that amount.
j. Blumel. a young mechanic, OF San
Francisco, has invented an ingenious device
to prevent false alarms OF fire. His design
is to manufacture new doors with his at
tachment for the boxes now in use. The
door has an opening in the under edge
through which hand can turn knob
opening the door and disclosing the appa-
ratus. The revolution of the knob, howev-
er. causes two iron bars to shoot out, one on
either side. and catching the intruding hand
in yise-like grip, from which II is impos-
sible to extricate it until a fire engine ar
rives and the trap is unlocked. In that
way the person who turns IN an alarm ls
imprisoned,
Herr Herb, OF Pulsnitz, has recently
patented the queerest cane ever known. 1t
is for university students. tourists and bot
anists. The tourists variety of the stick is
thus described One side of the handle is
a signal pipe and on the other side can be
fixed q knife. which is above the ferruie. |
In the middle of the handle 10 compass. |
The handle itself can be screwed off, and |
within il a small microscope, with six OBJ |
ject glasses. In the stick, under the han |
die. il a vessel containing ether or chloro- /
form. Outside the stick there is inserted |
on one side thermometer and on the other /
sand or minute-glass. Above the ferrule |
is the knife already referred to, and to the
serrule can he screwed botanists spatula
or an ice-point (for glacier parties, Last
", a metre measure is adapted 10 the stick.
OF course the arrangement can be altered,
and the vessel will, CT course, hold faer
lixuid than chloroform.
The largest bridge in Europe will be
completed next year. 1t will cross the Vol
"a in the government of Samaria, Russia,
On the Siberian railroad line. The Nolga
# the point OF the bridge Is about four
miles wide in the spring season, and In au-
umn is 4,79a feet. The bridge will be sup
ported BY twelve piers eighty-fve feet high,
nth ice-cutters thirty-6ve feet high at
distance of every 36i feet. The ice cutters
ne covered with granite. A temporary
olony is established for workingmen en-
loved on the bridge; it occupies about hf-
y-fye acres and has sixty different build
pes. insured at 100000 roubles. Two
thousand men are employed, and among
hem are 100 italian masons. Three steam
rs and seventy barks are used constantly
Or forwarding wood, stone, iron and other
,aterials. The bridge will cos: 63O,OOO
oubles, or about SO 100000.