Shenandoah herald. [volume] (Woodstock, Va.) 1865-1974, 1890-10-31
POPULAR SCIENCE.

The largest gas engine so lSr Duii1 has
developed 100-horsepower.
The balloon proposed for polar cx-
olorations is ninety-nine feet in diameter
md 500, 900 cubic feet in volume.
An electrical paper points out that in
Europe bronze has in great measure
superseded iron and copper in electrical
appliances.
Electrical endosmosis to accelerate the
passage of drugs through the skin has
lor some time been regularly practiced
lnder medical sanction.
French Psychologists have found that
llcohol produces the same efects-in-
.luding arrangement similar to delir-
ium tremens-on dogs as on men.
Electric currents of 500 horsepower
will be supplied the international Elec-
.rical Exhibition at Frankfort, Germany,
from generators 140 miles distant.
Experiments prove that the Atlantic
breakers have force of three tons to
The square foot; thus a surface Of only
two square yards sustnins blow from
heavy Atlantic breaker equal to ffty-four
ions.
Nearly 1000 electric cars are running
in the United States. Boston alone has
lbout 100 miles of electrically operated
roads. Several systems have been de-
geloped to a perfection that insures
.mooth and regular service. Other sys'
TENS are still more or less in the expert
mental stage.
The eyes of insects are immovable,
md many of them seem cut into null
ttude of facets, like the facets of dia-
nond. Each of these facets is sup
posed to possess the powers Of true
ave. Lenenboeck counted 31S1 Of them
In the cornea of beetle, and over SOOO
In that of common horseAy.
Cowhide horse shoes are reported to
be growing in favor in England and 9TH
sr parts of Europe. They have the ad-
rantages Of lightness, great durability,
,uperior adhesion aud avoidance of split
boots. The japanese are said to have
used straw horse shoes for centuries, the
straw being treated by an unknown
chemical process.
Professor Cohn, of Breslau, has found
that the heating of hay to the point O.
,nontaneous combustion is due to fun
gus. He first studied heating barley, find
ing that the tempeature of this is raised
about forty degrees by the process OF
termination, and that a rise Of more than
sixty degrees is caused by Aspergilius
fumigatus, which acts as ferment.
The effort to obtain electricity direct
from heat, without the Intervention ot
boilers, engines and dynamos, goes on
but without satisfactory commercial re-
suits as yet. Edison and Berliner cid
something on parallel lines OF inyeshga-
ton several years ago, but as their ex-
periments gave only small fraction OF
the power that would be obtained in the
old way they were not pushed. a Pitts
burg inventor, working along different
line claims to have accomplished more.
Trente, in Austria, claims to have the
cheapest public supply of electric light
in Europe. The station is owned by the
municipality and has at its disposal a
LARGE motive force from waterfall un-
der excellent conditions. The light IS
furnished to private consumers at the
rate of fifty kreutzer about twenty
cents) year per candle power, no reg
ulation being made as to the number OF
hours. To put the electric light within
the reach of the poorer inhabitants the
house wiring, done by the town, may be
paid for in annual payments. The sta
ton also supplies motive power.