McCook weekly tribune. (McCook, Neb.) 188?-1886, 1885-01-01
scrNrILLArIoss OF SCIENCE.
CuriosIties and Discoveries In the World Of
Progress. :

W nave DCcu iuduc III ouCh ~ AhettHtA
that it will eventually supersede the
use of steam for the purpose OF light
locomotion and driving small machin-
cry. Details of the invent IN are with
held until public exhibition of its
utility is made.
Writing from Lynn, Mass, a CORE.
spondent reminds the Scientific Amer1.
can that, as an instance of a Iemarka'
BILE flight of an exploded boiler, about
two years ago boiler exploded in
that city, and the flying portion, de.
scribine circle high in the air, landed
900 feet from where it started.
DR.. Gore, in paper on the cleo
trolysis of fluoride, chlorate and per.
chlorate of silver, has shown that
solution of these salts is readily dc.
composed by using electrodes of silver
and an electric current derived ffom
single cell composed OF zinc and
platinum in dilute sulphuric acid.
OSWALD suggests that in reactions
which take place under the influence
of acids the rapidities of such reactions
are proportional to the electric Con-
ductivity of the acids. Svante Arrhen-
JUS had ut an earlier period, though
the fact was not known to Ostweid,
arrived at essentially the same result.
An interesting experiment to ascer.
tain the effect of artificial heat on veg
citation has been made by Barthelemy-
He arranged a number of hyacinths in
glasses in circle around the pipe Of
stove, and after some time he found
that the roots assumed nearly horl-
zontal position, or direction almost
at right angles to the pipe.
Monuments and statues cast from
refined zinc are given sparkling APP
pearance by directing a sand blast I'M
der steam pressure upon them so that
the sand cuts the surface but does noe
adhere to it, A thin film Of oxide il
thus formed, which stands atmos-
pheric exposure admirably yet this
film is so thin that it scarcely admits
of ordinary measurement.
the Perpetual Secretary of tho
Academy of Science, Paris, has an
nounced that the International Conn
mittee of Weights and Measures stand.
ing for the high contracting parties
to the Convention for the Meter signed
at Paris on May 20, 1875, having at
last received the adhesion of Great
Britain and the further accession Of
Roumania and Servia, now represents
an aggregate population of Al, 440,-
1876.
A paper on the movement of Hype-
rion, by Professor S. Newcomb, has
been read before the Academy OF
Sciences, Paris. The conclusion ar
4 - = 1t IL &h1 n
Hyperion with Titan take place near
the aposaturn of the latter satellite.
The point of conjunction oscillates be-
tween $50 deg. on either side of the
aposaturn during the period of the
revolution of the periasturn of Hype-
rion in relation to that of Titan.
With regard to securing pure. health
full milk, the following opinion by Pro-
lessor Feser, of Munich, has been
quoted by N. Gerber: at is desira-
Bile to prevent the scale of milk which
is below certain standard as Sood
milk, even if it be simply the unadult-
Grated product of single animals re-
duced through insufficient and faulty
feeding. Ordinances passed for tho
prevention of adulteratiOn would be
DOWtI1CSS IL III UC lawful lhIiC
be adulterated before it's production in
he body of the animal by injudicious
treatment and feeding"
An architect thus recommends the
use of copper as roof-covering in
place of tin: eve always specify the
use of copper for covering roofs, when
we can induce owners to allow us to
do so, on account of its durability, al
though its cost is about S14 per square
foot over the price of tin roofing.
When we reflect that tin roof re-
quires constant repairs, and painting
at least every two years at cost of
or cents foot, varying as to the
number of coats, the cost of repairs
for six years, together with the cost of
in roof, equals the cost OF copper.
George Lawson, of Dalhousie Col
lege, Halifax, Nova Scotia, writes as
follows on wasps as ffy-killers: 'ln
this part of the world wasps enter
dwellings by the open windows in
summer time and hunt flies unmercl-
fully, leaving the dead in hundreds
on the floors. ready to be swept into
dustpan. This occurs only in the
country and where wasps' nests are
near by. Westwood quotes from ot-
Johns Letters to an American
Farmer that 1.-The Americans, aware
of their (wasps) service in destroying
flies, sometimes suspend a hornets
nests in their parlors."
At the requisition of the project of
police, Paris, MN. Dujardin, Beau
metz, Pasteur and Roux performed ex-
oeriments with the view of ascertain
ing what would be the best gas for
disinfecting rooms in which patients
suffering from contagious diseases bad
sojourned. These gentlemen have
come to the conclusion that sulphur
Gus acid gas would be the most effica-
cious for such purpose, but, instead
of simply burning sulphur, as is usu-
ally done, they recommend the burn
ing of bisulphide of carbon as being
the least expensive and the least injur-
ious to furniture or articles of metal in
the room.